CN102263256A - Negative plate and battery - Google Patents
Negative plate and battery Download PDFInfo
- Publication number
- CN102263256A CN102263256A CN201110173724A CN201110173724A CN102263256A CN 102263256 A CN102263256 A CN 102263256A CN 201110173724 A CN201110173724 A CN 201110173724A CN 201110173724 A CN201110173724 A CN 201110173724A CN 102263256 A CN102263256 A CN 102263256A
- Authority
- CN
- China
- Prior art keywords
- negative plate
- width
- roll set
- set end
- 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.)
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Links
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000004804 winding Methods 0.000 abstract 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 230000008961 swelling Effects 0.000 abstract 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 4
- 229910018477 Ni—MH Inorganic materials 0.000 description 4
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Classifications
-
- 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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- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to a negative plate which has two ends along a winding direction, wherein one end is a winding starting end and the other end is a tail end; and the width of the negative plate is gradually increased along the winding direction from the winding starting end to the tail end. The negative plate provided by the invention is characterized in that the width of the negative plate is gradually increased along the winding direction from the winding starting end to the tail end and the width of the winding starting end is less than the width of the rest part of the negative plate. When a nickel hydrogen battery is in a charged/discharging process and the negative plate swells and grows tall, since the width of the winding starting end is less than the width of the rest part of the negative plate and a certain height difference exists, the winding starting end of the negative plate after swelling can hardly contact with a current collector, a positive cap and the like and cannot be burnt, thereby efficiently preventing a battery from being damaged and scrapped.
Description
[technical field]
The present invention relates to a kind of negative plate and battery.
[background technology]
At present, Ni-MH battery is in charge and discharge process, and the situation that expands and grow tall appears in negative plate easily, especially grows tall even more serious near near the negative plate the negative plate roll set end.The negative pole back of growing tall easily contacts with collector, positive electrode cap etc. and occurs burning, and causes the battery damage, battery can't be used and scraps.
[summary of the invention]
In view of this, be necessary to provide a kind of negative plate that prevents that battery from damaging.
A kind of negative plate has two ends along coiling direction, and wherein an end is the roll set end, and the other end is a tail end, and described negative plate width becomes big gradually along coiling direction from the roll set end to tail end.
Preferably, described negative plate is domatic along coiling direction, and width is progressively increased by described roll set end to tail end.
Preferably, described negative plate is notch cuttype along coiling direction, and described roll set end is in the ladder of width minimum.
Preferably, described negative plate constitutes by the different sub-negative plate of a plurality of width is end to end, and the sub-negative plate of width minimum is in the roll set end.
Preferably, described roll set end width is 32 to 49 millimeters, and described aftermost breadth scope is 42 to 50 millimeters, and stand out is 0.1 millimeter to 10 millimeters between described roll set end and the tail end.
A kind of battery comprises positive plate, barrier film and negative plate, and described negative plate has two ends along coiling direction, an end roll set end wherein, and the other end is a tail end, described negative plate width becomes big gradually along coiling direction from the roll set end to tail end.
Preferably, described negative plate is domatic along coiling direction, and width is progressively increased by described roll set end to tail end.
Preferably, described negative plate is notch cuttype along coiling direction, and described roll set end is in the ladder of width minimum.
Preferably, described negative plate constitutes by the different sub-negative plate of a plurality of width is end to end, and the sub-negative plate of width minimum is in the roll set end.
Preferably, described roll set end width is 32 to 49 millimeters, and described aftermost breadth scope is 42 to 50 millimeters, and stand out is 0.1 millimeter to 10 millimeters between described roll set end and the tail end.
Above-mentioned negative plate and battery, the negative plate width becomes big gradually along coiling direction from the roll set end to tail end, the width of roll set end is less than the width of negative plate remainder, when Ni-MH battery in charge and discharge process, when negative plate occur to expand and to grow tall, because the width of roll set end is less than the width of negative plate remainder, exist certain height poor, be difficult for after negative plate roll set end grows tall contacting with collector, positive electrode cap etc. and burning, thereby effectively prevent to cause battery to damage, avoid battery to scrap.
[description of drawings]
Fig. 1 is the structural representation of negative plate among the embodiment;
Fig. 2 is the structural representation of negative plate among another embodiment;
Fig. 3 is the structural representation of negative plate among another embodiment;
Fig. 4 is the structural representation of negative plate among another embodiment.
[embodiment]
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
This negative plate has two ends along coiling direction, and wherein an end is the roll set end when reeling, and the other end is a tail end, the negative plate Width is vertical with coiling direction, the negative plate broad ways has both sides, is respectively the upside relative with positive electrode cap, and with the opposing downside of positive electrode cap.This negative plate width becomes from the roll set end to tail end greatly gradually along coiling direction, and the width of roll set end is less than the width of negative plate remainder.
Fig. 1 is the structural representation of negative plate among the embodiment.The neat degree of reeling and reeling for negative plate 100 is convenient to, this negative plate 100 are domatic along coiling direction, and width is progressively increased to tail end 120 by roll set end 110, and the width of roll set end 110 is less than the width of negative plate 100 remainders.Simultaneously, after growing tall, the normal requirement of using of battery and negative plate 100 can not cause battery to scrap for guaranteeing that negative plate 100 width satisfy, in preferred embodiment, negative plate downside 140 horizontal no changes, upside 130 is domatic and broadens gradually, roll set end 110 width ranges are 32 to 49 millimeters, and tail end 120 width ranges are 42 to 50 millimeters, and stand out is 0.1 millimeter to 10 millimeters between roll set end 110 and the tail end 120.
Fig. 2 is the structural representation of negative plate among another embodiment.This negative plate 200 is stairstepping along coiling direction, and roll set end 210 is in the ladder of width minimum.After growing tall, the normal requirement of using of battery and negative plate 200 can not cause battery to scrap for guaranteeing that negative plate 200 width satisfy, in preferred embodiment, this negative plate is the secondary ladder, negative plate downside 240 horizontal no changes, upside 230 is stairstepping and broadens gradually, and roll set end 210 and tail end 220 respectively are in the one-level ladder.Roll set end 210 width are 32 to 49 millimeters, and tail end 220 width ranges are 42 to 50 millimeters, and stand out is 0.1 millimeter to 10 millimeters between roll set end 210 and the tail end 220.
Fig. 3 is a negative plate structural representation among another embodiment.This negative plate 300 is that with negative plate difference shown in Figure 1 negative plate 300 width are progressively increased by roll set end 310 to negative plate middle part, are the domatic layout, and the gradient is 0 to 90 degree; Negative plate 300 width are identical to tail end 320 by the negative plate middle part.
Fig. 4 is the structural representation of negative plate among another embodiment.This negative plate 400 is with negative plate difference shown in Figure 2, is provided with the above ladder of two-stage between roll set end 410 and the tail end 420.
The described negative plate of Fig. 1 to Fig. 4 is all one-body molded by mode such as die-cut, as to cut.
This negative plate, the width of roll set end is less than the width of negative plate remainder, when Ni-MH battery in charge and discharge process, negative plate occurs expanding when growing tall, because the width of roll set end exists certain height poor less than the width of negative plate remainder, after growing tall, negative plate roll set end is difficult for contacting with collector, positive electrode cap etc. and burning, thereby effectively prevent to cause battery to damage, avoid battery to scrap.
In other embodiments, negative plate also can constitute by the different sub-negative plate of a plurality of width is end to end, and the sub-negative plate of width minimum is in the roll set end.
In addition, also provide a kind of battery, this battery comprises positive electrode cap, positive plate, negative plate, barrier film or the like, and wherein, negative plate is above-mentioned negative plate.
Above-mentioned negative plate and battery, the negative plate width becomes big gradually along coiling direction from the roll set end to tail end, the width of roll set end is less than the width of negative plate remainder, when Ni-MH battery in charge and discharge process, when negative plate occur to expand and to grow tall, because the width of roll set end is less than the width of negative plate remainder, exist certain height poor, be difficult for after negative plate roll set end grows tall contacting with collector, positive electrode cap etc. and burning, thereby effectively prevent to cause battery to damage, avoid battery to scrap.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a negative plate has two ends along coiling direction, and wherein an end is the roll set end, and the other end is a tail end, it is characterized in that, described negative plate width becomes big gradually along coiling direction from the roll set end to tail end.
2. negative plate according to claim 1 is characterized in that described negative plate is domatic along coiling direction, and width is progressively increased by described roll set end to tail end.
3. negative plate according to claim 1 is characterized in that described negative plate is notch cuttype along coiling direction, and described roll set end is in the ladder of width minimum.
4. negative plate according to claim 1 is characterized in that, described negative plate constitutes by the different sub-negative plate of a plurality of width is end to end, and the sub-negative plate of width minimum is in the roll set end.
5. according to the arbitrary described negative plate of claim 1 to 4, it is characterized in that described roll set end width is 32 to 49 millimeters, described aftermost breadth scope is 42 to 50 millimeters, and stand out is 0.1 millimeter to 10 millimeters between described roll set end and the tail end.
6. a battery comprises positive plate, barrier film and negative plate, and described negative plate has two ends along coiling direction, an end roll set end wherein, and the other end is a tail end, it is characterized in that, described negative plate width becomes big gradually along coiling direction from the roll set end to tail end.
7. battery according to claim 6 is characterized in that described negative plate is domatic along coiling direction, and width is progressively increased by described roll set end to tail end.
8. battery according to claim 6 is characterized in that described negative plate is notch cuttype along coiling direction, and described roll set end is in the ladder of width minimum.
9. battery according to claim 6 is characterized in that, described negative plate constitutes by the different sub-negative plate of a plurality of width is end to end, and the sub-negative plate of width minimum is in the roll set end.
10. according to the arbitrary described battery of claim 6 to 9, it is characterized in that described roll set end width is 32 to 49 millimeters, described aftermost breadth scope is 42 to 50 millimeters, and stand out is 0.1 millimeter to 10 millimeters between described roll set end and the tail end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110173724.2A CN102263256B (en) | 2011-06-24 | 2011-06-24 | Negative plate and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110173724.2A CN102263256B (en) | 2011-06-24 | 2011-06-24 | Negative plate and battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102263256A true CN102263256A (en) | 2011-11-30 |
| CN102263256B CN102263256B (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110173724.2A Active CN102263256B (en) | 2011-06-24 | 2011-06-24 | Negative plate and battery |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015008094A (en) * | 2013-06-25 | 2015-01-15 | 株式会社Ｇｓユアサ | Battery |
| JP2016051544A (en) * | 2014-08-29 | 2016-04-11 | 日立オートモティブシステムズ株式会社 | Flat wound secondary battery |
| CN106356497A (en) * | 2016-10-25 | 2017-01-25 | 宁德新能源科技有限公司 | Pole piece and wound battery core |
| WO2018076452A1 (en) * | 2016-10-25 | 2018-05-03 | 宁德新能源科技有限公司 | Pole plate and winding battery core |
| CN110197893A (en) * | 2019-06-19 | 2019-09-03 | 珠海格力电器股份有限公司 | Pole piece, electric core and battery module |
| US20220166049A1 (en) * | 2020-11-20 | 2022-05-26 | Samsung Electronics Co., Ltd. | Secondary battery and method of manufacturing the same |
| WO2022188009A1 (en) * | 2021-03-08 | 2022-09-15 | 宁德时代新能源科技股份有限公司 | Wound electrode assembly, battery cell, battery, and electrical device |
| WO2023236070A1 (en) * | 2022-06-08 | 2023-12-14 | 宁德新能源科技有限公司 | Electrochemical device and electric apparatus |
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| JPH1186898A (en) * | 1997-09-04 | 1999-03-30 | Matsushita Electric Ind Co Ltd | Alkaline storage battery |
| JP2006079942A (en) * | 2004-09-09 | 2006-03-23 | Sanyo Electric Co Ltd | Battery |
| CN1953244A (en) * | 2005-10-21 | 2007-04-25 | 比亚迪股份有限公司 | A quadrate lithium ion cell electrode core and its battery |
| CN201345383Y (en) * | 2008-08-26 | 2009-11-11 | 比亚迪股份有限公司 | Lithium ion secondary battery |
| CN201374362Y (en) * | 2008-08-26 | 2009-12-30 | 比亚迪股份有限公司 | Square lithium ion battery and pole core used for same |
-
2011
- 2011-06-24 CN CN201110173724.2A patent/CN102263256B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1186898A (en) * | 1997-09-04 | 1999-03-30 | Matsushita Electric Ind Co Ltd | Alkaline storage battery |
| JP2006079942A (en) * | 2004-09-09 | 2006-03-23 | Sanyo Electric Co Ltd | Battery |
| CN1953244A (en) * | 2005-10-21 | 2007-04-25 | 比亚迪股份有限公司 | A quadrate lithium ion cell electrode core and its battery |
| CN201345383Y (en) * | 2008-08-26 | 2009-11-11 | 比亚迪股份有限公司 | Lithium ion secondary battery |
| CN201374362Y (en) * | 2008-08-26 | 2009-12-30 | 比亚迪股份有限公司 | Square lithium ion battery and pole core used for same |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015008094A (en) * | 2013-06-25 | 2015-01-15 | 株式会社Ｇｓユアサ | Battery |
| JP2016051544A (en) * | 2014-08-29 | 2016-04-11 | 日立オートモティブシステムズ株式会社 | Flat wound secondary battery |
| CN106356497A (en) * | 2016-10-25 | 2017-01-25 | 宁德新能源科技有限公司 | Pole piece and wound battery core |
| WO2018076410A1 (en) * | 2016-10-25 | 2018-05-03 | 宁德新能源科技有限公司 | Electrode tab and winding battery |
| WO2018076452A1 (en) * | 2016-10-25 | 2018-05-03 | 宁德新能源科技有限公司 | Pole plate and winding battery core |
| CN106356497B (en) * | 2016-10-25 | 2019-05-07 | 宁德新能源科技有限公司 | Pole piece and coiling battery core |
| CN110197893A (en) * | 2019-06-19 | 2019-09-03 | 珠海格力电器股份有限公司 | Pole piece, electric core and battery module |
| US20220166049A1 (en) * | 2020-11-20 | 2022-05-26 | Samsung Electronics Co., Ltd. | Secondary battery and method of manufacturing the same |
| US12095022B2 (en) * | 2020-11-20 | 2024-09-17 | Samsung Electronics Co., Ltd. | Secondary battery and method of manufacturing the same |
| WO2022188009A1 (en) * | 2021-03-08 | 2022-09-15 | 宁德时代新能源科技股份有限公司 | Wound electrode assembly, battery cell, battery, and electrical device |
| US11862768B2 (en) | 2021-03-08 | 2024-01-02 | Contemporary Amperex Technology Co., Limited | Winding type electrode assembly, battery cell, battery and power consumption device |
| JP7522319B2 (en) | 2021-03-08 | 2024-07-24 | 寧徳時代新能源科技股▲分▼有限公司 | Wound electrode assembly, battery cell, battery and power consuming device |
| WO2023236070A1 (en) * | 2022-06-08 | 2023-12-14 | 宁德新能源科技有限公司 | Electrochemical device and electric apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102263256B (en) | 2014-06-18 |
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Address after: 518111 Building 1, 68 Xinxia Avenue, Pinghu street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen haopeng Technology Co.,Ltd. Address before: 518111 building A2, Luoshan Industrial Zone, Shanxia, Pinghu Town, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN HAOPENG TECHNOLOGY Co.,Ltd. |