CN203192918U - Battery cell and nickel-metal hydride battery - Google Patents

Battery cell and nickel-metal hydride battery Download PDF

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Publication number
CN203192918U
CN203192918U CN201220720530XU CN201220720530U CN203192918U CN 203192918 U CN203192918 U CN 203192918U CN 201220720530X U CN201220720530X U CN 201220720530XU CN 201220720530 U CN201220720530 U CN 201220720530U CN 203192918 U CN203192918 U CN 203192918U
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CN
China
Prior art keywords
roll set
current collector
negative current
electric core
holes
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.)
Expired - Lifetime
Application number
CN201220720530XU
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Chinese (zh)
Inventor
廖兴群
邹剑平
兰涛
蔡小娟
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Shenzhen Highpower Technology Co Ltd
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Shenzhen Highpower Technology Co Ltd
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Priority to CN201220720530XU priority Critical patent/CN203192918U/en
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Publication of CN203192918U publication Critical patent/CN203192918U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

The utility model discloses a battery cell. The battery cell comprises a positive electrode piece, a separator and a negative electrode piece, wherein the positive electrode piece, the separator, and the negative electrode piece are stacked and then wound together, the negative electrode piece is located on the outer side of the battery cell, the negative electrode piece comprises a negative electrode current collector and a negative electrode active substance coated on the negative electrode current collector, the negative electrode current collector comprises a winding starting part located at a winding starting position and a connecting part, one end of the connecting part is connected with the winding starting part, the winding starting part is provided with a plurality of through holes with the hole diameter range of 0.2mm-0.9mm, and the connecting part is provided with a plurality of through holes with the hole diameter range of 1mm-3mm. The negative electrode current collector of the battery cell comprises the winding starting part and the connecting part, the winding starting part is provided with the plurality of through holes with the hole diameter range of 0.2mm-0.9mm, and the connecting part is provided with the plurality of through holes with the hole diameter range of 1mm-3mm; and as the hole diameter ranges of the through holes in the winding starting part and the connecting part are changed, compared with a traditional battery cell, the winding starting part of the negative electrode of the battery cell disclosed by the utility model is unlikely to fracture. The utility model also provides a nickel-metal hydride battery.

Description

Electricity core and Ni-MH battery
Technical field
The utility model relates to a kind of electric core and Ni-MH battery.
Background technology
The electric core of traditional Ni-MH battery is reeled by positive plate, barrier film and negative plate and is formed, and negative plate is positioned at the outside of electric core.The negative plate of electricity core is than anodal length of a film 3mm~5mm.Simultaneously, because the capacity of Ni-MH battery and the amount of the active material on the battery pole piece have relation, because the length of positive plate is shorter than the length of negative plate, the thickness of positive plate can be than the thickness of negative plate thick 2~3 times.
The curvature at the roll set place of the electric core of traditional Ni-MH battery is bigger, thereby causes the roll set portion of negative pole to be ruptured easily.
The utility model content
Based on this, the electric core and the Ni-MH battery that are necessary to provide a kind of roll set portion of negative pole to be not easy to rupture.
A kind of electric core comprises the positive plate, barrier film and the negative plate that are wound on after stacked together, and described negative plate is positioned at the outside of described electric core;
Described negative plate comprises negative current collector and is coated in negative electrode active material on the described negative current collector, and described negative current collector comprises the connecting portion that the roll set portion that is positioned at the roll set position and an end link to each other with described roll set portion;
Described roll set portion is provided with a plurality of through holes that pore diameter range is 0.2mm~0.9mm, and described connecting portion is provided with a plurality of through holes that pore diameter range is 1mm~3mm.
In one embodiment, described roll set portion is 1mm~20mm along the length of described negative current collector coiling direction.
In one embodiment, described negative current collector also comprises the roll set end that links to each other with the other end of described connecting portion, and described roll set end is provided with a plurality of through holes that pore diameter range is 0.2mm~0.9mm.
In one embodiment, described roll set end is 20mm~100mm along the length of described negative current collector coiling direction.
In one embodiment, described negative current collector is steel band, aluminium foil or corrosive aluminum foil.
A kind of Ni-MH battery comprises battery container, electric core and electrolyte, and described electric core and described electrolyte level are in described battery container inside; Described electric core comprises positive plate, barrier film and the negative plate that is wound on after stacked together, and described negative plate is positioned at the outside of described electric core;
Described negative plate comprises negative current collector and is coated in negative electrode active material on the described negative current collector, and described negative current collector comprises the connecting portion that the roll set portion that is positioned at the roll set position and an end link to each other with described roll set portion;
Described roll set portion is 1mm~20mm along the length of described negative current collector coiling direction, and described roll set portion is provided with a plurality of through holes that pore diameter range is 0.2mm~0.9mm.
In one embodiment, described connecting portion is provided with a plurality of through holes that pore diameter range is 1mm~3mm.
In one embodiment, described negative current collector also comprises the roll set end that links to each other with the other end of described connecting portion, and described roll set end is provided with a plurality of through holes that pore diameter range is 0.2mm~0.9mm.
In one embodiment, described roll set end is 20mm~100mm along the length of described negative current collector coiling direction.
In one embodiment, described negative current collector is steel band, aluminium foil or corrosive aluminum foil.
The negative current collector of this electric core comprises roll set portion and connecting portion, roll set portion is provided with a plurality of through holes that pore diameter range is 0.2mm~0.9mm, connecting portion is provided with a plurality of through holes that pore diameter range is 1mm~3mm, because the pore diameter range of through hole changes on roll set portion and the connecting portion, with respect to traditional electric core, the roll set portion of the negative pole of this electric core is not easy to rupture.
Description of drawings
Fig. 1 is the schematic diagram of the negative current collector of an execution mode.
Embodiment
For the ease of understanding the present invention, with reference to relevant drawings the present invention is described more fully below.Provided preferred embodiment of the present invention in the accompanying drawing.But the present invention can realize with many different forms, be not limited to embodiment described herein.On the contrary, provide the purpose of these embodiment be make the understanding of disclosure of the present invention comprehensively thorough more.
The electric core of one execution mode comprises positive plate, barrier film and negative plate, and negative plate is positioned at the outside of electric core.
Be wound on after positive plate, barrier film and negative plate are stacked and form electric core together.
Negative plate comprises negative current collector 100 as shown in Figure 1 and is coated in negative electrode active material on the negative current collector 100.
In conjunction with Fig. 1, negative current collector 100 comprises the roll set portion 120 that is positioned at the roll set position, the connecting portion 140 that an end links to each other with roll set portion 120 and the roll set end 160 that links to each other with the other end of roll set portion 120.
Roll set portion 120 is provided with a plurality of through holes that pore diameter range is 0.2mm~0.9mm.
Connecting portion 140 is provided with a plurality of through holes that pore diameter range is 1mm~3mm.
The negative current collector 100 of this electric core comprises roll set portion 120 and connecting portion 140, roll set portion 120 is provided with a plurality of through holes that pore diameter range is 0.2mm~0.9mm, connecting portion 140 is provided with a plurality of through holes that pore diameter range is 1mm~3mm, because the pore diameter range of through hole changes on roll set portion 120 and the connecting portion 140, with respect to traditional electric core, the roll set portion 120 of the negative pole of this electric core is not easy to rupture.
Roll set end 160 is provided with a plurality of through holes that pore diameter range is 0.2mm~0.9mm, changes thereby on roll set terminal 160 and the connecting portion 140 pore diameter range takes place also.And because arts demand, the negative pole of traditional electric core is slightly longer than anodal, and the roll set end of the negative current collector of negative pole has a step behind coiling, so negative pole also ruptures than being easier in this section.
On the roll set of this electric core terminal 160 and the connecting portion 140 pore diameter range takes place also and change, relative and traditional electric core, roll set terminal 160 difficult fractures.
It will be appreciated by persons skilled in the art that roll set end 160 can omit in other execution mode.
Roll set portion 120 is 1mm~20mm along the length of negative current collector 100 coiling directions.
Roll set end 160 is 20mm~100mm along the length of negative current collector 100 coiling directions.
Negative current collector can be steel band, aluminium foil or corrosive aluminum foil.
This electric core goes for multiple battery, comprises Ni-MH battery, nickel-zinc cell, lithium ion battery etc.
Be example below with the Ni-MH battery, the application of this electric core is introduced.
The Ni-MH battery of one execution mode comprises battery container, above-mentioned electric core and electrolyte.
Electricity core and electrolyte level are in battery container inside.
The electricity core comprises positive plate, barrier film and negative plate, and negative plate is positioned at the outside of electric core.
Be wound on after positive plate, barrier film and negative plate are stacked and form electric core together.
Negative plate comprises negative current collector 100 as shown in Figure 1 and is coated in negative electrode active material on the negative current collector 100.
In conjunction with Fig. 1, negative current collector 100 comprises the roll set portion 120 that is positioned at the roll set position, the connecting portion 140 that an end links to each other with roll set portion 120 and the roll set end 160 that links to each other with the other end of roll set portion 120.
Roll set portion 120 is provided with a plurality of through holes that pore diameter range is 0.2mm~0.9mm.
Connecting portion 140 is provided with a plurality of through holes that pore diameter range is 1mm~3mm.
The negative current collector 100 of this electric core comprises roll set portion 120 and connecting portion 140, roll set portion 120 is provided with a plurality of through holes that pore diameter range is 0.2mm~0.9mm, connecting portion 140 is provided with a plurality of through holes that pore diameter range is 1mm~3mm, because the pore diameter range of through hole changes on roll set portion 120 and the connecting portion 140, with respect to traditional electric core, the roll set portion 120 of the negative pole of this electric core is not easy to rupture.
Roll set end 160 is provided with a plurality of through holes that pore diameter range is 0.2mm~0.9mm, changes thereby on roll set terminal 160 and the connecting portion 140 pore diameter range takes place also.And because arts demand, the negative pole of traditional electric core is slightly longer than anodal, and the roll set end of the negative current collector of negative pole has a step behind coiling, so negative pole also ruptures than being easier in this section.
On the roll set of this electric core terminal 160 and the connecting portion 140 pore diameter range takes place also and change, relative and traditional electric core, roll set terminal 160 difficult fractures.
It will be appreciated by persons skilled in the art that roll set end 160 can omit in other execution mode.
Roll set portion 120 is 1mm~20mm along the length of negative current collector 100 coiling directions.
Roll set end 160 is 20mm~100mm along the length of negative current collector 100 coiling directions.
Negative current collector can be steel band, aluminium foil or corrosive aluminum foil.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.

Claims (10)

1. an electric core is characterized in that, comprises the positive plate, barrier film and the negative plate that are wound on after stacked together, and described negative plate is positioned at the outside of described electric core;
Described negative plate comprises negative current collector and is coated in negative electrode active material on the described negative current collector, and described negative current collector comprises the connecting portion that the roll set portion that is positioned at the roll set position and an end link to each other with described roll set portion;
Described roll set portion is provided with a plurality of through holes that pore diameter range is 0.2mm ~ 0.9mm, and described connecting portion is provided with a plurality of through holes that pore diameter range is 1mm ~ 3mm.
2. electric core according to claim 1 is characterized in that, described roll set portion is 1mm ~ 20mm along the length of described negative current collector coiling direction.
3. electric core according to claim 1 is characterized in that, described negative current collector also comprises the roll set end that links to each other with the other end of described connecting portion, and described roll set end is provided with a plurality of through holes that pore diameter range is 0.2mm ~ 0.9mm.
4. electric core according to claim 3 is characterized in that, described roll set end is 20mm ~ 100mm along the length of described negative current collector coiling direction.
5. electric core according to claim 1 is characterized in that, described negative current collector is steel band, aluminium foil or corrosive aluminum foil.
6. a Ni-MH battery comprises battery container, electric core and electrolyte, and described electric core and described electrolyte level are in described battery container inside; It is characterized in that described electric core comprises positive plate, barrier film and the negative plate that is wound on after stacked together, described negative plate is positioned at the outside of described electric core;
Described negative plate comprises negative current collector and is coated in negative electrode active material on the described negative current collector, and described negative current collector comprises the connecting portion that the roll set portion that is positioned at the roll set position and an end link to each other with described roll set portion;
Described roll set portion is 1mm ~ 20mm along the length of described negative current collector coiling direction, and described roll set portion is provided with a plurality of through holes that pore diameter range is 0.2mm ~ 0.9mm.
7. Ni-MH battery according to claim 6 is characterized in that, described connecting portion is provided with a plurality of through holes that pore diameter range is 1mm ~ 3mm.
8. Ni-MH battery according to claim 6 is characterized in that, described negative current collector also comprises the roll set end that links to each other with the other end of described connecting portion, and described roll set end is provided with a plurality of through holes that pore diameter range is 0.2mm ~ 0.9mm.
9. Ni-MH battery according to claim 8 is characterized in that, described roll set end is 20mm ~ 100mm along the length of described negative current collector coiling direction.
10. Ni-MH battery according to claim 6 is characterized in that, described negative current collector is steel band, aluminium foil or corrosive aluminum foil.
CN201220720530XU 2012-12-24 2012-12-24 Battery cell and nickel-metal hydride battery Expired - Lifetime CN203192918U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220720530XU CN203192918U (en) 2012-12-24 2012-12-24 Battery cell and nickel-metal hydride battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201220720530XU CN203192918U (en) 2012-12-24 2012-12-24 Battery cell and nickel-metal hydride battery

Publications (1)

Publication Number Publication Date
CN203192918U true CN203192918U (en) 2013-09-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104993177A (en) * 2015-07-29 2015-10-21 深圳市量能科技有限公司 High temperature nickel-hydrogen battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104993177A (en) * 2015-07-29 2015-10-21 深圳市量能科技有限公司 High temperature nickel-hydrogen battery
CN104993177B (en) * 2015-07-29 2017-09-15 深圳市量能科技有限公司 A kind of high-temperature Ni/H 2 battery

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C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

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 1, 68 Xinxia Avenue, Pinghu street, Longgang District, Shenzhen City, Guangdong Province

Patentee before: SHENZHEN HIGHPOWER TECHNOLOGY Co.,Ltd.

CP01 Change in the name or title of a patent holder
CX01 Expiry of patent term

Granted publication date: 20130911

CX01 Expiry of patent term