CN103000957A - Chargeable electric bicycle lithium battery module with function of thermal runaway protection - Google Patents
Chargeable electric bicycle lithium battery module with function of thermal runaway protection Download PDFInfo
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- CN103000957A CN103000957A CN201210544513XA CN201210544513A CN103000957A CN 103000957 A CN103000957 A CN 103000957A CN 201210544513X A CN201210544513X A CN 201210544513XA CN 201210544513 A CN201210544513 A CN 201210544513A CN 103000957 A CN103000957 A CN 103000957A
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a chargeable electric bicycle lithium battery module with a function of thermal runaway protection. The chargeable electric bicycle lithium battery module comprises a lithium ion cell group (4), wherein the lithium ion battery core group (4) is formed by connecting a plurality of lithium ion battery cores in series, two ends of the lithium ion battery core group (4) are respectively connected with a positive charge and discharge terminal (1) and a negative charge and discharge terminal (2), the lithium ion battery core group (4) is connected with at least one series branch in parallel, and each series branch is formed by at least one normally open temperature switch (3) and at least one power resistor (5). The chargeable electric bicycle lithium battery module with the function of the thermal runaway protection, disclosed by the invention, can efficiently enhance the safety and the reliability of an electric bicycle lithium battery in the use process, prolong the service life of the electric bicycle lithium battery, and meanwhile, reduce the production cost of the electric bicycle lithium battery, so that the chargeable electric bicycle lithium battery module the function of the thermal runaway protection has a wide market application prospect, and has an important meaning on the production practice.
Description
Technical field
The present invention relates to the battery technology field, particularly relate to a kind of lithium cell for electric bicycle module of chargeable thermal runaway protection.
Background technology
The advantages such as lithium ion battery has high working voltage, high-energy-density, has extended cycle life, non-environmental-pollution, the secondary chemical sources of electric energy as electric energy and chemical energy being transformed mutually is regarded as one of popular candidate technologies of electric energy storing system.Since being born, its application constantly enlarges, and obtains rapidly development.At present, not only be used widely at portable communication apparatus and portable electric appts, and be widely used in the Large Electric equipment aspects such as electric tool, electric bicycle and electric automobile, therefore, more and more higher to the security performance requirement of lithium ion battery at present, how improving battery safety is the main direction of present each macrocell producer research.
But along with popularizing of electric bicycle, the lithium ion battery that should become the bicycle electric power main force but exists larger problem, is seriously restricting it and is popularizing on a large scale.Because energy is higher, the fail safe of lithium ion battery becomes one of Main Bottleneck of its application.Traditionally; the automobile-used lithium ion battery of electrical salf-walking uses the protective circuit plate to prevent because the safety that abuse causes problem out of control occurs; but; exist so simultaneously high cost, complex process, poor reliability and be difficult to the problems such as maintenance; and in the situation that the inefficacy of protective circuit plate; thermal runaway phenomenon easily occurs in the automobile-used lithium ion cell electrode of electrical salf-walking, has influence on the use safety of electric bicycle, even has influence on user's personal safety.
Therefore, at present in the urgent need to developing a kind of technology, it can effectively promote lithium ion battery for electric bicycle safety and reliability in use, prolongs the useful life of lithium ion battery, can reduce the production cost of lithium ion battery for electric bicycle simultaneously.
Summary of the invention
In view of this; the lithium cell for electric bicycle module that the purpose of this invention is to provide a kind of chargeable thermal runaway protection; it can effectively promote lithium ion battery for electric bicycle safety and reliability in use; prolong the useful life of lithium ion battery; can reduce simultaneously the production cost of lithium ion battery for electric bicycle; thereby have widely market application foreground, be of great practical significance.
For this reason, the invention provides a kind of lithium cell for electric bicycle module of chargeable thermal runaway protection, include the lithium-ion electric core group, described lithium-ion electric core group is comprised of a plurality of lithium-ion electric cores that are cascaded;
The two ends of described lithium-ion electric core group are connected with respectively one and discharge and recharge positive terminal and one and discharge and recharge negative terminal;
Described lithium-ion electric core group and at least one series arm are in parallel, and each described series arm is comprised of at least one open type temperature switch and at least one power resistor.
Wherein, described open type temperature switch sticks on the described lithium-ion electric core group.
Wherein, described open type temperature switch sticks on the anode ear or position, edge of described lithium-ion electric core group.
Wherein, each lithium-ion electric core in the described lithium-ion electric core group is in parallel with a described series arm respectively.
Wherein, described open type temperature switch sticks on the anode ear or position, edge of described lithium-ion electric core.
Wherein, be coated with heat insulating member above the described open type temperature switch.
By above technical scheme provided by the invention as seen; compared with prior art; the invention provides a kind of lithium cell for electric bicycle module of chargeable thermal runaway protection; it can effectively promote lithium ion battery for electric bicycle safety and reliability in use; prolong the useful life of lithium ion battery; simultaneously can reduce the production cost of lithium ion battery for electric bicycle, thereby have widely market application foreground, be of great practical significance.
In addition, the present invention can also take full advantage of the energy content of battery, avoids battery consumable in discharge process serious, significantly promotes effective distance travelled of electric bicycle.
Description of drawings
Fig. 1 is the circuit structure simplified schematic diagram of the lithium cell for electric bicycle module embodiment one of a kind of chargeable thermal runaway protection provided by the invention;
Fig. 2 is the circuit structure simplified schematic diagram of the lithium cell for electric bicycle module embodiment two of a kind of chargeable thermal runaway protection provided by the invention;
Among the figure, 1 for discharging and recharging positive terminal, and 2 for discharging and recharging negative terminal, and 3 is the open type temperature switch, and 4 is the lithium-ion electric core group, and 5 is power resistor.
Embodiment
In order to make those skilled in the art person understand better the present invention program, the present invention is described in further detail below in conjunction with drawings and embodiments.
Referring to Fig. 1, the invention provides a kind of lithium cell for electric bicycle module of chargeable thermal runaway protection, include lithium-ion electric core group 4, described lithium-ion electric core group 4 is comprised of a plurality of lithium-ion electric cores that are cascaded.
In the present invention, the two ends of described lithium-ion electric core group 4 are connected with respectively one and discharge and recharge positive terminal 1 and one and discharge and recharge negative terminal 2, and the charger of outside electric bicycle charges by discharging and recharging positive terminal 1 and discharging and recharging 2 pairs of battery modules of the present invention of negative terminal; The controller of electric bicycle discharges by discharging and recharging positive terminal 1 and discharging and recharging 2 pairs of battery modules of the present invention of negative terminal.
In the present invention, described lithium-ion electric core group 4 is in parallel with at least one series arm, and each described series arm is comprised of at least one open type temperature switch 3 and at least one power resistor 5.That is to say, the quantity of described series arm is not limited to one, can according to user's needs, be set to a plurality of arbitrarily.
In the present invention, on the specific implementation, described open type temperature switch 3 sticks on the anode ear or position, edge of described lithium-ion electric core group 4, be used for responding to the heat that described lithium-ion electric core group 4 produces at running, when battery module reaches preset temperature because of overcharging overheated, this open type temperature switch 3 is communicated with auto-closing, discharging and recharging positive terminal 1 and discharging and recharging negative terminal 2 of battery module will be by power resistor 5 discharges, thereby can effectively reduce overcharged voltage and the energy content of battery, thereby further reduce battery temperature, avoid thermal runaway phenomenon to occur, finally avoid occurring the security incidents such as fire.
On the specific implementation, described open type temperature switch 3 specifically can stick on the anode ear or edge of described lithium-ion electric core by the heat conduction glue-line.
Need to prove, described temperature switch is open type, thereby when battery module is in normal temperature lower time, no matter battery module is in the charge or discharge state, electric current is without this open type temperature switch and power resistor, the series arm that is comprised of at least one open type temperature switch 3 and at least one power resistor 5 is in the disconnection off position, can effectively reduce like this power of open type temperature switch 3 and at least one power resistor 5, also can effectively reduce simultaneously the energy consumption that open type temperature switch 3 and at least one power resistor 5 cause, so that lithium cell for electric bicycle module provided by the invention capacity under discharge condition is exceeded consumable.
In the present invention, on the specific implementation, the preset temperature that described open type temperature switch 3 is carried out the closed communicating action is 60 ~ 80 degrees centigrade.
Disturb in order to reduce extraneous heat, improve the performance of open type temperature switch 3, be coated with heat insulating member above the described open type temperature switch 3, the parts of described heat insulating member for adopting ceramic insulating material to make are specifically as follows the parts that aluminosilicate-type is made with ceramic insulating material.On the specific implementation, described heat insulating member is preferably the parts that adopt aluminium oxide or silica to make, and for example can be thermal isolation film.
Also need to prove, in the present invention, each lithium-ion electric core in the described lithium-ion electric core group 4, the material of its negative electrode comprises one or more among lithium manganese oxide, lithium-nickel-manganese-cobalt oxide and the ferric phosphate Lithium.Simultaneously, the barrier film material of described lithium-ion electric core can be ceramic-like barrier film, TPO barrier film or the compound barrier film that is comprised of ceramic-like and TPO.
On the specific implementation, described ceramic-like barrier film can comprise one or more in aluminium oxide, silica, zirconia and the titanium oxide, and comprises bonding agent.Described TPO barrier film can be polypropylene diaphragm, polyethylene barrier film or polypropylene and polyethylene composite barrier film.
Referring to Fig. 2; lithium cell for electric bicycle module for a kind of chargeable thermal runaway protection provided by the invention; on the specific implementation; need to prove; each lithium-ion electric core in the described lithium-ion electric core group 4 can also be in parallel with a described series arm respectively, and described series arm is comprised of an open type temperature switch 3 and a power resistor 5.Therefore, no matter battery module is in the charge or discharge state, and electric current is without this open type temperature switch and power resistor, and the series arm that is comprised of at least one open type temperature switch 3 and at least one power resistor 5 is in the disconnection off position.
For Fig. 2, described open type temperature switch 3 sticks on the anode ear or position, edge of described lithium-ion electric core, and the charger of outside electric bicycle charges by discharging and recharging positive terminal 1 and discharging and recharging 2 pairs of battery modules of the present invention of negative terminal; The controller of electric bicycle discharges by discharging and recharging positive terminal 1 and discharging and recharging 2 pairs of battery modules of the present invention of negative terminal.
Need to prove, for lithium ion battery, it will be in the height unsafe condition, even can burn and explode in the situation of seriously overcharging.According to the lithium ion battery reaction mechanism of overcharging, can produce the decomposition of active material and the oxidation Decomposition of electrolyte in the process, can produce more heat.With thermal accumlation, when temperature is elevated to 100 degree when above, battery can produce thermal runaway with larger probability, and then burning or blast.Therefore, what the present invention is directed to is the power lithium-ion battery of electric bicycle, and its cathode active material is selected one or more among stability higher lithium manganese oxide, lithium-nickel-manganese-cobalt oxide and the ferric phosphate Lithium.
For the present invention, its purpose is to solve the automobile-used lithium ion battery thermal runaway of electrical salf-walking problem, and the expensive complicated protection circuit that replaces traditional lithium ion battery to use effectively promotes reliability in the battery use procedure.The present invention also aims to take full advantage of the energy content of battery, avoid in discharge process consumable serious, promote the effective distance travelled of electric bicycle.
In sum; compared with prior art; the invention provides a kind of lithium cell for electric bicycle module of chargeable thermal runaway protection; it can effectively promote lithium ion battery for electric bicycle safety and reliability in use; prolong the useful life of lithium ion battery; simultaneously can reduce the production cost of lithium ion battery for electric bicycle, thereby have widely market application foreground, be of great practical significance.
In addition, the present invention can also take full advantage of the energy content of battery, avoids battery consumable in discharge process serious, significantly promotes effective distance travelled of electric bicycle.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. the lithium cell for electric bicycle module of a chargeable thermal runaway protection is characterized in that, include lithium-ion electric core group (4), described lithium-ion electric core group (4) is comprised of a plurality of lithium-ion electric cores that are cascaded;
The two ends of described lithium-ion electric core group (4) are connected with respectively one and discharge and recharge positive terminal (1) and one and discharge and recharge negative terminal (2);
Described lithium-ion electric core group (4) is in parallel with at least one series arm, and each described series arm is comprised of at least one open type temperature switch (3) and at least one power resistor (5).
2. lithium cell for electric bicycle module as claimed in claim 1 is characterized in that, described open type temperature switch (3) sticks on the described lithium-ion electric core group (4).
3. lithium cell for electric bicycle module as claimed in claim 2 is characterized in that, described open type temperature switch (3) sticks on the anode ear or position, edge of described lithium-ion electric core group (4).
4. lithium cell for electric bicycle module as claimed in claim 1 is characterized in that, each lithium-ion electric core in the described lithium-ion electric core group (4) is in parallel with a described series arm respectively.
5. lithium cell for electric bicycle module as claimed in claim 4 is characterized in that, described open type temperature switch (3) sticks on the anode ear or position, edge of described lithium-ion electric core.
6. such as each described lithium cell for electric bicycle module in the claim 1 to 5, it is characterized in that, be coated with heat insulating member above the described open type temperature switch (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210544513XA CN103000957A (en) | 2012-12-17 | 2012-12-17 | Chargeable electric bicycle lithium battery module with function of thermal runaway protection |
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| CN201210544513XA CN103000957A (en) | 2012-12-17 | 2012-12-17 | Chargeable electric bicycle lithium battery module with function of thermal runaway protection |
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| CN103000957A true CN103000957A (en) | 2013-03-27 |
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| CN201210544513XA Pending CN103000957A (en) | 2012-12-17 | 2012-12-17 | Chargeable electric bicycle lithium battery module with function of thermal runaway protection |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837834A (en) * | 2014-02-18 | 2014-06-04 | 清华大学 | Testing method of thermal runaway characteristic of battery |
| GB2521453A (en) * | 2013-12-20 | 2015-06-24 | Ocean Signal Ltd | Battery Apparatus |
| CN107171032A (en) * | 2017-04-25 | 2017-09-15 | 深圳市海云图新能源有限公司 | A kind of lithium battery group protects system |
| CN107331906A (en) * | 2017-07-04 | 2017-11-07 | 天津市捷威动力工业有限公司 | A kind of lithium battery high temperature protection structure and lithium battery |
| CN108258337A (en) * | 2017-12-26 | 2018-07-06 | 中国科学院广州能源研究所 | A kind of method for preventing lithium ion battery thermal runaway |
| CN108270053A (en) * | 2017-12-26 | 2018-07-10 | 中国科学院广州能源研究所 | A kind of device for preventing power lithium-ion battery packet thermal runaway |
| RU2667905C1 (en) * | 2017-06-16 | 2018-09-25 | Леонид Алексеевич Макриденко | Accumulator battery |
| RU2668282C1 (en) * | 2017-06-16 | 2018-09-28 | Александр Иванович Груздев | Electrical storage battery |
| CN113054329A (en) * | 2019-12-26 | 2021-06-29 | 荣盛盟固利新能源科技有限公司 | Lithium ion battery with overheating safety protection and overheating safety protection method thereof |
| WO2022198851A1 (en) * | 2021-03-26 | 2022-09-29 | 三一汽车制造有限公司 | Thermal runaway processing method and apparatus, and readable storage medium |
| CN115189052A (en) * | 2021-04-02 | 2022-10-14 | 荣盛盟固利新能源科技有限公司 | Power battery system and electric automobile |
| JP7491832B2 (en) | 2020-12-24 | 2024-05-28 | 日鉄テックスエンジ株式会社 | Method for determining abnormality of electrical connection terminal of charge/discharge inspection device |
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| CN203013868U (en) * | 2012-12-17 | 2013-06-19 | 杭州万好万家动力电池有限公司 | Lithium battery module having charging thermal runaway protection function and used for electric bicycle |
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2012
- 2012-12-17 CN CN201210544513XA patent/CN103000957A/en active Pending
Patent Citations (3)
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| CN1255253A (en) * | 1997-05-05 | 2000-05-31 | 艾利森公司 | Battery with charge control circuitary |
| CN101860066A (en) * | 2009-04-03 | 2010-10-13 | 索尼公司 | Battery pack and charging method |
| CN203013868U (en) * | 2012-12-17 | 2013-06-19 | 杭州万好万家动力电池有限公司 | Lithium battery module having charging thermal runaway protection function and used for electric bicycle |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2521453A (en) * | 2013-12-20 | 2015-06-24 | Ocean Signal Ltd | Battery Apparatus |
| GB2521453B (en) * | 2013-12-20 | 2018-06-27 | Ocean Signal Ltd | Battery Apparatus |
| CN103837834B (en) * | 2014-02-18 | 2016-05-18 | 清华大学 | The method of testing of battery thermal runaway characteristic |
| CN103837834A (en) * | 2014-02-18 | 2014-06-04 | 清华大学 | Testing method of thermal runaway characteristic of battery |
| CN107171032A (en) * | 2017-04-25 | 2017-09-15 | 深圳市海云图新能源有限公司 | A kind of lithium battery group protects system |
| WO2018196163A1 (en) * | 2017-04-25 | 2018-11-01 | 深圳市海云图新能源有限公司 | Lithium battery pack protection system |
| RU2667905C1 (en) * | 2017-06-16 | 2018-09-25 | Леонид Алексеевич Макриденко | Accumulator battery |
| RU2668282C1 (en) * | 2017-06-16 | 2018-09-28 | Александр Иванович Груздев | Electrical storage battery |
| CN107331906A (en) * | 2017-07-04 | 2017-11-07 | 天津市捷威动力工业有限公司 | A kind of lithium battery high temperature protection structure and lithium battery |
| CN107331906B (en) * | 2017-07-04 | 2019-11-05 | 天津市捷威动力工业有限公司 | A kind of lithium battery high temperature protection structure and lithium battery |
| CN108270053A (en) * | 2017-12-26 | 2018-07-10 | 中国科学院广州能源研究所 | A kind of device for preventing power lithium-ion battery packet thermal runaway |
| CN108258337A (en) * | 2017-12-26 | 2018-07-06 | 中国科学院广州能源研究所 | A kind of method for preventing lithium ion battery thermal runaway |
| CN113054329A (en) * | 2019-12-26 | 2021-06-29 | 荣盛盟固利新能源科技有限公司 | Lithium ion battery with overheating safety protection and overheating safety protection method thereof |
| JP7491832B2 (en) | 2020-12-24 | 2024-05-28 | 日鉄テックスエンジ株式会社 | Method for determining abnormality of electrical connection terminal of charge/discharge inspection device |
| JP7603869B2 (en) | 2020-12-24 | 2024-12-20 | 日鉄テックスエンジ株式会社 | Method for determining abnormality of electrical connection terminal of charge/discharge inspection device |
| WO2022198851A1 (en) * | 2021-03-26 | 2022-09-29 | 三一汽车制造有限公司 | Thermal runaway processing method and apparatus, and readable storage medium |
| CN115189052A (en) * | 2021-04-02 | 2022-10-14 | 荣盛盟固利新能源科技有限公司 | Power battery system and electric automobile |
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Application publication date: 20130327 |