CN107808986A - Secondary battery charging method - Google Patents
Secondary battery charging method Download PDFInfo
- Publication number
- CN107808986A CN107808986A CN201610809699.5A CN201610809699A CN107808986A CN 107808986 A CN107808986 A CN 107808986A CN 201610809699 A CN201610809699 A CN 201610809699A CN 107808986 A CN107808986 A CN 107808986A
- Authority
- CN
- China
- Prior art keywords
- charging
- battery
- discharge
- current
- secondary battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007600 charging Methods 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000010287 polarization Effects 0.000 abstract description 5
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 15
- 230000014759 maintenance of location Effects 0.000 description 7
- 238000007599 discharging Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910032387 LiCoO2 Inorganic materials 0.000 description 1
- 229910001290 LiPF6 Inorganic materials 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of secondary battery charging method, and it includes：One group of charging current value being sequentially reduced, one group of discharge current value, one group of charging interval value, and one group of discharge time values are set, set charge cutoff voltage V0 and charge cutoff electric current Im；Use set charging current value, charging interval value, discharge current value, discharge time values to carry out pulse charge to battery successively by setting rule, after cell voltage reaches V0, stop charging or to stop charging after V0 constant-voltage charges to cut-off current Im.Compared with prior art, small negative pulse current or the charging modes of standing by the present invention in that the big positive pulse electric current being gradually reduced with substep is arranged in pairs or groups, significantly reducing polarization caused by big pulse current charge influences, reduce cell cathode polarization potential, significantly improve the cycle performance of battery high voltage system, especially high temperature cyclic performance, effectively extend the service life of battery.
Description
Technical field
The invention belongs to cell art, it is more particularly related to a kind of secondary battery charging method.
Background technology
Existing secondary cell charging modes are：A certain current potential is charged to battery last using constant current, then herein
Current potential carries out constant-voltage charge to battery.This charging modes can be such that cathode potential constantly raises, especially in constant voltage charging phase,
Negative electrode is continuously maintained in high potential so that the stability of cathode construction is affected, and battery cycle life deteriorates, and works as charging process
When carrying out in high temperature environments, it can more aggravate the deterioration of battery cycle life.
In view of this, it is necessary to which a kind of secondary battery charging method that can solve the problem that above mentioned problem is provided.
The content of the invention
It is an object of the invention to：Overcome the deficiencies in the prior art, there is provided one kind can effectively extend battery
Secondary battery charging method.
In order to realize foregoing invention purpose, the present invention provides a kind of secondary battery charging method, and it comprises the following steps：
Step 1：Set one group of charging current value being sequentially reduced { Ic1, Ic2, Ic3 ..., Icn }, one group of electric discharge electricity
Flow valuve { Id1, Id2, Id3 ... ..., Idn }, one group of charging interval value { tc1, tc2, tc3 ... ..., tcn }, and one group of electric discharge
Time value { td1, td2, td3 ... ..., tdn }, setting charge cutoff voltage V0；
Step 2：Battery is charged, charging current Ic1, charging interval tc1, then to battery discharge or by battery
Stand, discharge current Id1, discharge time or time of repose are td1, so circulation, until cell voltage reaches V0；
Battery is charged, charging current Ic2, charging interval tc2, then to battery discharge or by battery standing, put
Electric current is Id2, and discharge time or time of repose are td2, so circulation, until cell voltage reaches V0；
……
Battery is charged, charging current Icn, charging interval tcn, then to battery discharge or by battery standing, put
Electric current is Idn, and discharge time or time of repose are tdn, so circulation, until cell voltage reaches V0.
One kind as secondary battery charging method of the present invention is improved, and the step 1 also includes setting charge cutoff electric current
The step of Im, the step 2 are also included to battery with V0 constant-voltage charges, until the step of battery current reaches Im afterwards.
One kind as secondary battery charging method of the present invention is improved, the charging current value Ic1, Ic2, Ic3 ... ...,
Icn } in the range of 0.1C~5C.
One kind as secondary battery charging method of the present invention is improved, charging interval value tc1, tc2, tc3 ... ...,
Tcn } in the range of 0.1s~30s.
One kind as secondary battery charging method of the present invention is improved, the discharge current value Id1, Id2, Id3 ... ...,
Idn } in the range of 0C~0.2C.
One kind as secondary battery charging method of the present invention is improved, the discharge time values td1, td2, td3 ... ...,
Tdn } in the range of 0.01s~5s.
One kind as secondary battery charging method of the present invention is improved, and the charge cutoff voltage V0 is 3.6V~4.5V.
One kind as secondary battery charging method of the present invention is improved, and the charge cutoff electric current Im is 0.01C~0.2C.
One kind as secondary battery charging method of the present invention is improved, and methods described also includes battery being placed in 20~50 DEG C
Step in environment, this step are completed before step 2.
One kind as secondary battery charging method of the present invention is improved, and the charge cutoff electric current Im is not more than the minimum
Charging current value Icn.
Compared with prior art, secondary battery charging method of the present invention at least has technique effect beneficial below：Pass through
Using the small negative pulse current of the big positive pulse electric current collocation being gradually reduced step by step or the charging modes of standing, significantly reduce
Polarization caused by big pulse current charge influences, and so as to reduce cell cathode polarization potential, greatly improves battery high voltage
The cycle performance of system, especially high temperature cyclic performance, effectively extend the service life of battery.
Brief description of the drawings
With reference to the accompanying drawings and detailed description, secondary battery charging method of the present invention and its advantageous effects are entered
Row describes in detail.
Fig. 1 is the curve map of the charging current of secondary battery charging method of the present invention.
Fig. 2 is the curve map of the embodiment of the present invention 1 and the charging voltage of comparative example.
Fig. 3 is the curve map of the embodiment of the present invention 1 and the charging current of comparative example.
Fig. 4 is the embodiment of the present invention 1 and the curve map of the capability retention of comparative example.
Embodiment
In order that goal of the invention, technical scheme and the technique effect of the present invention become apparent from understanding, below in conjunction with accompanying drawing and
Embodiment, the present invention will be described in further detail.It should be appreciated that the specific implementation described in this specification
Mode is not intended to limit the present invention just for the sake of explaining the present invention.
Refer to shown in Fig. 1, secondary battery charging method of the present invention comprises the following steps.
Step 1：Set one group of charging current value being sequentially reduced { Ic1, Ic2, Ic3 ..., Icn }, one group of electric discharge electricity
Flow valuve { Id1, Id2, Id3 ... ..., Idn }, one group of charging interval value { tc1, tc2, tc3 ... ..., tcn }, and one group of electric discharge
Time value { td1, td2, td3 ... ..., tdn }, setting charge cutoff voltage V0；
Step 2：Battery is charged, charging current Ic1, charging interval tc1, then to battery discharge or by battery
Stand, discharge current Id1, discharge time or time of repose are td1, so circulation, until cell voltage reaches V0；
Battery is charged, charging current Ic2, charging interval tc2, then to battery discharge or by battery standing, put
Electric current is Id2, and discharge time or time of repose are td2, so circulation, until cell voltage reaches V0；
……
Battery is charged, charging current Icn, charging interval tcn, then to battery discharge or by battery standing, put
Electric current is Idn, and discharge time or time of repose are tdn, so circulation, until cell voltage reaches V0.
It is the embodiment and comparative example of secondary battery charging method of the present invention below.
Battery system used by embodiment and comparative example, be using LiCoO2 as negative electrode main material, using graphite as
Anode main material, along with barrier film, electrolyte and pack case, by the battery made by technique such as assembling, being melted into and be aged.
Wherein, negative electrode is made up of 97.5%LiCoO2,1.3%PVDF (as binding agent) and 1.2%SP (as conductive agent) mixing, sun
Pole is made up of 98% Delanium, 1.0%SBR (as binding agent) and 1.0%CMC (as thickener) mixing, barrier film PP,
PE or PP composite membranes, electrolyte by (30%EC+30%PC+40%DEC) (as organic solvent), 1mol/L LiPF6 and
(0.5%VC, 5%FEC, 4%VEC) (as additive) forms.At 25 DEG C, it is 3750mAh that the expiring of this battery, which fills charging capacity,.
Embodiment 1
Embodiment 1 comprises the following steps that：
1) set one group of charging current value { 1.5C, 1.3C, 1C, 0.8C, 0.5C, 0.2C, 0.1C } being sequentially reduced, one group
Discharge current value { 0.02C, 0.015C, 0.01C, 0.01C, 0.01C, 0.01C, 0C }, one group of charging interval value 9.5s, 9.5s,
9.5s 9.5s, 9s, 9s, 8s }, and one group of discharge time values { 0.5s, 0.5s, 0.5s, 0.5s, 0.2s, 0.2s, 0.1s }；If
It is 4.45V to put charge cutoff voltage；Battery is placed in 45 DEG C of environment, to battery charging and discharging；
2) with electric current 1.5C charge 9.5s, then with electric current 0.02C discharge 0.5s,
3) repeat step 2), until cell voltage reaches 4.45V；
4) with electric current 1.3C charge 9.5s, then with electric current 0.015C discharge 0.5s,
5) repeat step 4), until cell voltage reaches 4.45V；
6) with electric current 1C charge 9.5s, then with electric current 0.01C discharge 0.5s,
7) repeat step 6), until cell voltage reaches 4.45V；
8) with electric current 0.8C charge 9.5s, then with electric current 0.01C discharge 0.5s,
9) repeat step 8), until cell voltage reaches 4.45V；
10) with electric current 1C charge 9.5s, then with electric current 0.01C discharge 0.5s,
11) repeat step 10), until cell voltage reaches 4.45V；
12) with electric current 0.5C charge 9s, then with electric current 0.01C discharge 0.2s,
13) repeat step 12), until cell voltage reaches 4.45V；
14) with electric current 0.2C charge 9s, then with electric current 0.01C discharge 0.2s,
15) repeat step 14), until cell voltage reaches 4.45V；
16) with electric current 0.1C charging 8s, 0.1s is then stood,
17) repeat step 16), until cell voltage reaches 4.45V, stop charging.
Embodiment 2
Embodiment 2 comprises the following steps that：
1) one group of charging current value { 5C, 1.5C, 1C, 0.5C, 0.2C } being sequentially reduced, one group of discharge current value are set
{ 0.2C, 0.03C, 0.02C, 0.01C, 0.01C }, one group of charging interval value { 1s, 30s, 5s, 5s, 2s }, and during one group of electric discharge
Between be worth { 0.01s, 5s, 0.5s, 0.5s, 0.1s }；Setting charge cutoff voltage is 4.45V, and charge cutoff electric current is 0.05C；Will
Battery is placed in 45 DEG C of environment, to battery charging and discharging；
2) with electric current 5C charge 1s, then with electric current 0.2C discharge 0.01s,
3) repeat step 2), until cell voltage reaches 4.45V；
4) with electric current 1.5C charge 30s, then with electric current 0.03C discharge 5s,
5) repeat step 4), until cell voltage reaches 4.45V；
6) with electric current 1C charge 5s, then with electric current 0.02C discharge 0.5s,
7) repeat step 6), until cell voltage reaches 4.45V；
8) with electric current 0.5C charge 5s, then with electric current 0.01C discharge 0.5s,
9) repeat step 8), until cell voltage reaches 4.45V；
10) with electric current 0.2C charge 2s, then with electric current 0.01C discharge 0.1s,
11) repeat step 10), until cell voltage reaches 4.45V；
12) 0.05C is reached with 4.45V constant-voltage charges to battery current, stops charging.
Embodiment 3
Embodiment 3 comprises the following steps that：
1) set one group be sequentially reduced charging current value 1.5C, 1.4C, 1.3C, 1.2C, 1.1C, 1.0C, 0.9C,
0.8C, 0.7C, 0.6C, 0.5C, 0.4C, 0.3C, 0.2C, 0.1C }, one group of discharge current value 0.05C, 0.05C, 0.05C,
0.05C, 0.05C, 0.05C, 0.05C, 0.05C, 0.05C, 0.05C, 0.05C, 0.02C, 0.02C, 0C, 0.01C }, one group fill
Electric time value { 10s, 10s, 10s, 10s, 10s, 10s, 10s, 10s, 10s, 10s, 10s, 5s, 5s, 5s, 0.1s }, and one group
Discharge time values { 1s, 1s, 1s, 1s, 1s, 1s, 1s, 1s, 1s, 1s, 1s, 1s, 1s, 1s, 0.01s }.Charge cutoff voltage is set
For 4.45V；Battery is placed in 45 DEG C of environment, to battery charging and discharging；
2) with electric current 1.5C charge 10s, then with electric current 0.05C discharge 1s,
3) repeat step 2), until cell voltage reaches 4.45V；
4) with electric current 1.4C charge 10s, then with electric current 0.05C discharge 1s,
5) repeat step 4), until cell voltage reaches 4.45V；
6) with electric current 1.3C charge 10s, then with electric current 0.05C discharge 1s,
7) repeat step 6), until cell voltage reaches 4.45V；
8) with electric current 1.2C charge 10s, then with electric current 0.05C discharge 1s,
9) repeat step 8), until cell voltage reaches 4.45V；
10) with electric current 1.1C charge 10s, then with electric current 0.05C discharge 1s,
11) repeat step 10), until cell voltage reaches 4.45V；
12) with electric current 1.0C charge 10s, then with electric current 0.05C discharge 1s,
13) repeat step 12), until cell voltage reaches 4.45V；
14) with electric current 0.9C charge 10s, then with electric current 0.05C discharge 1s,
15) repeat step 14), until cell voltage reaches 4.45V；
16) with electric current 0.8C charge 10s, then with electric current 0.05C discharge 1s,
17) repeat step 16), until cell voltage reaches 4.45V；
18) with electric current 0.7C charge 10s, then with electric current 0.05C discharge 1s,
19) repeat step 18), until cell voltage reaches 4.45V；
20) with electric current 0.6C charge 10s, then with electric current 0.05C discharge 1s,
21) repeat step 20), until cell voltage reaches 4.45V；
22) with electric current 0.5C charge 10s, then with electric current 0.05C discharge 1s,
23) repeat step 22), until cell voltage reaches 4.45V；
24) with electric current 0.4C charge 5s, then with electric current 0.02C discharge 1s,
25) repeat step 24), until cell voltage reaches 4.45V；
26) with electric current 0.3C charge 5s, then with electric current 0.02C discharge 1s,
27) repeat step 26), until cell voltage reaches 4.45V；
28) with electric current 0.2C charge 5s, then with electric current 0C electric discharge 1s (standing 1s),
29) repeat step 28), until cell voltage reaches 4.45V；
30) with electric current 0.1C charge 0.1s, then with electric current 0.01C discharge 0.01s,
31) repeat step 30), until cell voltage reaches 4.45V, stop charging.
Comparative example
Comparative example comprises the following steps that：
1) it is 4.45V to set charge cutoff voltage, and charge cutoff electric current is 0.05C；Battery is placed in 45 DEG C of environment, it is right
Battery charging and discharging；
2) cell voltage is charged to constant current 1.5C and reaches 4.45V；
3) battery current is charged to constant voltage 4.45V and reaches 0.05C.
Fig. 2 and Fig. 3 is respectively the charging voltage and charging current time history plot of embodiment 1 and comparative example.
As seen from the figure, during whole charging, the voltage of embodiment 1 is below the voltage of comparative example mutually in the same time.Therefore, phase
For comparative example, the charging method of embodiment effectively reduces the polarizing voltage in charging process.
In order to examine the technique effect that secondary battery charging method of the present invention is reached, with embodiment 1, embodiment 2, implement
Secondary cell after example 3 and comparative example charging is as test object, under 45 DEG C of constant temperature, respectively to test object with
0.2C multiplying power does the cycle charge discharge electrical testing of 800 times, and test result is as shown in table 1.It is real relative to comparative example from table
Apply its capability retention after 800 charge and discharge cycles of example 1 and increase to 87% by 81%, embodiment 2 is in 800 charge and discharge cycles
Its capability retention increases to 86% by 81% afterwards, and its capability retention after 800 charge and discharge cycles of embodiment 3 is increased by 81%
Add to 89%.
Table 1, the charge parameter of embodiment and comparative example and capability retention contrast
The curve map that Fig. 4 changes for capability retention in the test result of embodiment 1 and comparative example with cycle-index.By scheming
It can be seen that after cycle charge-discharge 500 times, embodiment 1 has higher capability retention relative to comparative example, embodiment 1
Cycle life has obtained obvious improvement.
It should be noted that charging current value { Ic1, Ic2, Ic3 ... ..., Ici ... ..., Icn } preferred model of the present invention
Enclose for 0.1C~5C；Charging interval value tc1, tc2, tc3 ..., tci ..., tcn } preferred scope is 0.1s~30s；Put
Electric current value Id1, Id2, Id3 ..., Idi ..., Idn } preferred scope is 0C~0.2C；Discharge time values td1, td2,
Td3 ..., tdi ..., tdn } preferred scope is 0.01s~5s；Preferred 3.6V~the 4.5V of charge cutoff voltage V0；Charging is cut
Only electric current Im is preferably no greater than minimum charge current value Icn, more preferably 0.01C~0.2C；Charging ambient temperature is preferred
20~50 DEG C.Under the conditions of preferred parameter, charging method of the invention is by with more excellent technique effect.
The detailed description of secondary battery charging method of the present invention can be seen that relative to prior art with reference to more than, this
Invention secondary battery charging method is carried out by the way of pulse charge after certain time of being charged using high current to battery
Low discharging current, accumulated with slowing down lasting charging process to the polarization that battery is brought, reduce the current potential of cell cathode, reduced high
Impact of the voltage to battery cathode material, so as to improve the cycle life of battery.Especially using large current charge to cut-off
During voltage, cathode potential is continuously in high-voltage state, is now charged by substep using the positive pulse electric current being gradually reduced, and
Carry out low discharging current or by battery standing, can further reduce cathode potential, greatly improve the circulation of battery high voltage system,
Cycle performance particularly under high temperature, so as to effectively extend the service life of battery.
According to above-mentioned principle, the present invention can also carry out appropriate change and modification to above-mentioned embodiment.Therefore, this hair
It is bright to be not limited to embodiment disclosed and described above, some modifications and changes of the present invention should also be as falling into this
In the scope of the claims of invention.In addition, although used some specific terms in this specification, but these terms
Merely for convenience of description, any restrictions are not formed to the present invention.
Claims (10)
1. a kind of secondary battery charging method, it is characterised in that the described method comprises the following steps：
Step 1：Set one group of charging current value being sequentially reduced { Ic1, Ic2, Ic3 ..., Icn }, one group of discharge current value
{ Id1, Id2, Id3 ... ..., Idn }, one group of charging interval value { tc1, tc2, tc3 ... ..., tcn }, and one group of discharge time
It is worth { td1, td2, td3 ... ..., tdn }, setting charge cutoff voltage V0；
Step 2：Battery is charged, charging current Ic1, charging interval tc1, then to battery discharge or by battery standing,
Discharge current is Id1, and discharge time or time of repose are td1, so circulation, until cell voltage reaches V0；
Battery is charged, charging current Ic2, charging interval tc2 are then electric to battery discharge or by battery standing, electric discharge
Flow for Id2, discharge time or time of repose are td2, so circulation, until cell voltage reaches V0；
……
Battery is charged, charging current Icn, charging interval tcn are then electric to battery discharge or by battery standing, electric discharge
Flow for Idn, discharge time or time of repose are tdn, so circulation, until cell voltage reaches V0.
2. secondary battery charging method according to claim 1, it is characterised in that：The step 1 also includes setting charging
The step of cut-off current Im, the step 2 are also included to battery with V0 constant-voltage charges, until battery current reaches Im's afterwards
Step.
3. secondary battery charging method according to claim 1, it is characterised in that：The charging current value Ic1, Ic2,
Ic3 ..., Icn } in the range of 0.1C~5C.
4. secondary battery charging method according to claim 1, it is characterised in that：Charging interval value tc1, tc2,
Tc3 ..., tcn } in the range of 0.1s~30s.
5. secondary battery charging method according to claim 1, it is characterised in that：The discharge current value Id1, Id2,
Id3 ..., Idn } in the range of 0C~0.2C.
6. secondary battery charging method according to claim 1, it is characterised in that：The discharge time values td1, td2,
Td3 ..., tdn } in the range of 0.01s~5s.
7. secondary battery charging method according to claim 1, it is characterised in that：The charge cutoff voltage V0 is 3.6V
~4.5V.
8. secondary battery charging method according to claim 2, it is characterised in that：The charge cutoff electric current Im is
0.01C~0.2C.
9. secondary battery charging method according to claim 1, it is characterised in that：Methods described also includes battery being placed in
Step in 20~50 DEG C of environment, this step are completed before step 2.
10. secondary battery charging method according to claim 2, it is characterised in that：The charge cutoff electric current Im is little
In the minimum charge current value Icn.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610809699.5A CN107808986A (en) | 2016-09-08 | 2016-09-08 | Secondary battery charging method |
| PCT/CN2017/100235 WO2018045920A1 (en) | 2016-09-08 | 2017-09-01 | Method and apparatus for charging secondary batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610809699.5A CN107808986A (en) | 2016-09-08 | 2016-09-08 | Secondary battery charging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107808986A true CN107808986A (en) | 2018-03-16 |
Family
ID=61562681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610809699.5A Pending CN107808986A (en) | 2016-09-08 | 2016-09-08 | Secondary battery charging method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107808986A (en) |
| WO (1) | WO2018045920A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509927A (en) * | 2019-01-07 | 2019-03-22 | 东莞赣锋电子有限公司 | Charging mode of lithium ion battery |
| CN112740500A (en) * | 2019-10-21 | 2021-04-30 | 宁德新能源科技有限公司 | Charging method, electronic device, and storage medium |
| CN112928351A (en) * | 2021-02-10 | 2021-06-08 | 中国科学院金属研究所 | Pulse charging technology of lithium-sulfur battery |
| WO2021189319A1 (en) * | 2020-03-25 | 2021-09-30 | 宁德新能源科技有限公司 | Charging method, electronic device, and storage medium |
| WO2023077444A1 (en) * | 2021-11-05 | 2023-05-11 | 宁德时代新能源科技股份有限公司 | Battery pack charging method, computer-readable storage medium, and electrical device |
| WO2025020627A1 (en) * | 2023-07-21 | 2025-01-30 | 欣旺达动力科技股份有限公司 | Battery charging method, electronic device, and electric device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065989B (en) * | 2018-07-27 | 2020-06-05 | 维沃移动通信有限公司 | Charging method and charging device |
| CN111509789B (en) * | 2019-01-30 | 2022-07-01 | 北京小米移动软件有限公司 | Charging method and device |
| WO2021077272A1 (en) * | 2019-10-21 | 2021-04-29 | 宁德新能源科技有限公司 | Charging method, electronic apparatus, and storage medium |
| CN112689934B (en) * | 2019-10-21 | 2023-10-17 | 宁德新能源科技有限公司 | Charging method, electronic device, and storage medium |
| CN111864844B (en) * | 2020-07-27 | 2022-03-08 | 中创新航科技股份有限公司 | Equalization method and equalization device of battery system and intelligent equipment |
| CN115149127B (en) * | 2021-03-31 | 2025-02-18 | 宁德新能源科技有限公司 | Battery charging and discharging method, electronic device and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282957A (en) * | 2013-07-09 | 2015-01-14 | 深圳市动力聚能科技有限公司 | Method for charging lithium ion battery by using pulse current |
| CN104347900A (en) * | 2013-08-02 | 2015-02-11 | 长葛市红亮电器厂 | A charging method in a constant current stage for an electrocar battery charger |
| CN105186053A (en) * | 2015-08-24 | 2015-12-23 | 长春理工大学 | Variable-current charging method of storage battery |
| CN105226338A (en) * | 2015-10-20 | 2016-01-06 | 浙江天能动力能源有限公司 | A kind of lead acid accumulator rapid internalization becomes charging method |
| CN105553036A (en) * | 2016-02-04 | 2016-05-04 | 努比亚技术有限公司 | Rapid charging device and method |
| CN105870526A (en) * | 2016-06-23 | 2016-08-17 | 宁德新能源科技有限公司 | Battery charge method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3366176B2 (en) * | 1996-02-22 | 2003-01-14 | ダイハツ工業株式会社 | How to charge the battery |
| CN204928326U (en) * | 2015-08-24 | 2015-12-30 | 长春理工大学 | Battery Variable Current Charging Device |
-
2016
- 2016-09-08 CN CN201610809699.5A patent/CN107808986A/en active Pending
-
2017
- 2017-09-01 WO PCT/CN2017/100235 patent/WO2018045920A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282957A (en) * | 2013-07-09 | 2015-01-14 | 深圳市动力聚能科技有限公司 | Method for charging lithium ion battery by using pulse current |
| CN104347900A (en) * | 2013-08-02 | 2015-02-11 | 长葛市红亮电器厂 | A charging method in a constant current stage for an electrocar battery charger |
| CN105186053A (en) * | 2015-08-24 | 2015-12-23 | 长春理工大学 | Variable-current charging method of storage battery |
| CN105226338A (en) * | 2015-10-20 | 2016-01-06 | 浙江天能动力能源有限公司 | A kind of lead acid accumulator rapid internalization becomes charging method |
| CN105553036A (en) * | 2016-02-04 | 2016-05-04 | 努比亚技术有限公司 | Rapid charging device and method |
| CN105870526A (en) * | 2016-06-23 | 2016-08-17 | 宁德新能源科技有限公司 | Battery charge method |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509927A (en) * | 2019-01-07 | 2019-03-22 | 东莞赣锋电子有限公司 | Charging mode of lithium ion battery |
| CN109509927B (en) * | 2019-01-07 | 2021-01-19 | 东莞赣锋电子有限公司 | Charging mode of lithium ion battery |
| CN112740500A (en) * | 2019-10-21 | 2021-04-30 | 宁德新能源科技有限公司 | Charging method, electronic device, and storage medium |
| CN112740500B (en) * | 2019-10-21 | 2024-11-22 | 宁德新能源科技有限公司 | Charging method, electronic device and storage medium |
| WO2021189319A1 (en) * | 2020-03-25 | 2021-09-30 | 宁德新能源科技有限公司 | Charging method, electronic device, and storage medium |
| CN112928351A (en) * | 2021-02-10 | 2021-06-08 | 中国科学院金属研究所 | Pulse charging technology of lithium-sulfur battery |
| WO2023077444A1 (en) * | 2021-11-05 | 2023-05-11 | 宁德时代新能源科技股份有限公司 | Battery pack charging method, computer-readable storage medium, and electrical device |
| KR20230125030A (en) * | 2021-11-05 | 2023-08-28 | 컨템포러리 엠퍼렉스 테크놀로지 씨오., 리미티드 | Methods for charging battery packs, computer-readable storage media, and electrical devices |
| KR102768081B1 (en) | 2021-11-05 | 2025-02-18 | 컨템포러리 엠퍼렉스 테크놀로지 (홍콩) 리미티드 | Method for charging battery pack, computer readable storage medium and electrical device |
| US12255485B2 (en) | 2021-11-05 | 2025-03-18 | Contemporary Amperex Technology (Hong Kong) Limited | Charging method for battery pack, computer-readable storage medium, and power consuming apparatus |
| WO2025020627A1 (en) * | 2023-07-21 | 2025-01-30 | 欣旺达动力科技股份有限公司 | Battery charging method, electronic device, and electric device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018045920A1 (en) | 2018-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107808986A (en) | Secondary battery charging method | |
| KR101873329B1 (en) | Charging method for lithium ion batteries | |
| CN106654428B (en) | A kind of manganate lithium ion battery chemical synthesizing method | |
| CN103985917B (en) | Low-temperature charging and discharging method for lithium battery | |
| CN105070963B (en) | The optimization method of high-multiplying power lithium ion battery SEI films | |
| CN108615955B (en) | Formation method of lithium iron phosphate battery | |
| CN101154747B (en) | Formation method for lithium ion secondary battery | |
| CN103633284B (en) | Lithium ion battery liquid injection method | |
| CN101872879A (en) | Chemical combination method of lithium-ion recharging battery | |
| CN103117412B (en) | Lithium ion battery and chemical synthesizing method thereof | |
| CN105845980B (en) | Electrolyte and lithium ion battery containing same | |
| WO2018188225A1 (en) | Battery charging method and device | |
| CN105322245A (en) | Charging method for improving charging efficiency of lithium ion battery | |
| CN108258346A (en) | Secondary battery charging method | |
| CN111384450B (en) | Liquid injection formation method of lithium ion battery | |
| CN106532160A (en) | Battery charging method and device | |
| CN109713387A (en) | A method of improving lithium-rich manganese-based lithium ion battery cyclical stability | |
| CN106532159A (en) | Battery charging method and device | |
| CN105703022A (en) | Lithium ion power battery charging method capable of controlling battery degradation based on temperatures | |
| CN111540958A (en) | Preparation method of lithium manganate battery | |
| CN105098236B (en) | Lithium ion battery and electrolyte thereof | |
| CN112687956A (en) | Non-aqueous electrolyte of lithium battery and lithium ion battery based on same | |
| CN103594735A (en) | Preparation method for lithium titanate lithium ion battery | |
| CN110071341A (en) | A kind of restorative procedure of retired lithium ion battery | |
| CN112234270A (en) | Formation method of lithium iron phosphate battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180316 |