CN201349038Y - Battery and battery pack - Google Patents
Battery and battery pack Download PDFInfo
- Publication number
- CN201349038Y CN201349038Y CNU2008202074832U CN200820207483U CN201349038Y CN 201349038 Y CN201349038 Y CN 201349038Y CN U2008202074832 U CNU2008202074832 U CN U2008202074832U CN 200820207483 U CN200820207483 U CN 200820207483U CN 201349038 Y CN201349038 Y CN 201349038Y
- Authority
- CN
- China
- Prior art keywords
- battery
- cell connector
- cover plate
- groove
- guard member
- 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
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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
-
- 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
Abstract
The utility model discloses a battery, which comprises an outer casing, a battery core component, a cover plate and a flaky battery connecting plate, wherein the battery core component is disposed in a space formed by the outer casing and the cover plate and comprises an anode plate, a cathode plate and a diaphragm between the anode plate and the cathode plate, one end of the battery connecting plate penetrates through the cover plate to be connected with the battery core component, and a groove arranged on the surface of the battery connecting plate is broken and has a protective function when the battery connecting plate stresses external mechanical force. The utility model further discloses a battery pack which is formed by connecting a plurality of batteries. Through the mentioned structure, the probability of extruding the battery connecting plate of each single battery of the battery pack into the inside of each battery is reduced, thereby reducing hidden trouble of short circuit in the batteries. The battery pack is simple in structure and convenient in process, and resolves problems that internal resistance is overhigh when connecting the batteries and battery conducting areas are insufficient.
Description
Technical field
The utility model relates to battery, more particularly, relates to a kind of battery and battery pack thereof.
Background technology
Along with the raising of human environmental consciousness, it will be following inexorable trend that electric automobile (EV) and hybrid vehicle (HEV) replace existing fuel vehicle.As the core drive energy---the power battery pack of electric automobile, it is particularly outstanding that its importance seems.
As everyone knows, power battery pack is to be combined through certain mode by a plurality of cells, and therefore the security performance for the connecting portion between cell requires also just quite high; Most of in the market batteries all are connected with other electrokinetic cells with the sheet brace, and such mode causes potential safety hazards such as battery short circuit very much.
The utility model content
Inventor of the present utility model finds to cause potential safety hazards such as battery short circuit because the common batteries brace of existing battery is very easy to directly be penetrated in the battery when being subjected to clashing into through repeatedly research and experiment.
The purpose of this utility model is to overcome the conventional batteries short circuit ratio than higher defective, and provides a kind of battery short circuit rate low battery.
The utility model provides a kind of battery, comprises shell, electric core assembly, the cell connector of cover plate and sheet;
The electricity core assembly is positioned in the space of shell and cover plate composition; The electricity core assembly comprises positive plate, negative plate and is arranged on barrier film between positive plate, negative plate;
One end of cell connector passes cover plate and is connected with electric core assembly;
Described cell connector surface is provided with groove, the described groove safety effect that ruptured after being subjected to mechanical external force.
The utility model also provides a kind of battery pack, comprises that described battery comprises shell, electric core assembly, the cell connector of cover plate and sheet by the battery of the series connection of sheet cell connector or parallel connection or series-parallel connection connection;
The electricity core assembly is positioned in the space of shell and cover plate composition; The electricity core assembly comprises positive plate, negative plate and is arranged on barrier film between positive plate, negative plate;
One end of cell connector passes cover plate and is connected with electric core assembly;
The cell connector surface is provided with groove, the described groove safety effect that ruptured after being subjected to mechanical external force.
The utility model provides a kind of battery; the design of this cell connector upper groove; effectively reduce brace and be squeezed into the probability of inside battery; the utility model has also on the cover board increased the cover plate guard member; and then reduced the hidden danger of internal short-circuit of battery, and the utility model is simple in structure; easy to process, the excessive problem of internal resistance and the problem of battery admittance area deficiency when also having solved battery simultaneously and connecting.
Description of drawings
The schematic diagram of a kind of shape of cell connector that Fig. 1 provides for the utility model;
Fig. 2 is the cut-away view of Fig. 1;
The schematic diagram of the another kind of shape of the cell connector that Fig. 3 the utility model provides;
Fig. 4 is the cut-away view of Fig. 3;
The structural representation that the cell connector that Fig. 5 the utility model provides cooperates with cover plate;
The structural representation that the cell connector that Fig. 6 the utility model provides cooperates with cell;
Fig. 7 is the local enlarged diagram at Fig. 6 A place;
The structural representation of a kind of battery pack that Fig. 8 the utility model provides;
Fig. 9 is the local enlarged diagram at Fig. 8 B place;
The local enlarged diagram of the another kind of battery pack that Figure 10 the utility model provides.
Embodiment
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is described in further detail below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model is example with the lithium ion battery.Mainly being described as automobile etc. provides the electrokinetic cell of power.
Embodiment 1:
Provide a kind of battery referring to figs. 1 through Fig. 5 the utility model, comprise shell and the electric core assembly that is arranged in the described shell, described electric core assembly comprises the positive plate (not shown), negative plate (not shown) and be arranged on positive plate, barrier film (not shown) between negative plate, described battery also comprises cell connector 1 and cover plate 4, described cell connector 1 is made one with described cover plate 4, one end of described cell connector 1 passes described cover plate 4 and leads in the described battery and be connected with described electric core assembly, described electric core assembly and cover plate 4 touching positions are provided with insulating sealer, described insulating sealer comprises rivet 6 and insulation elastomeric element 5, cell connector 1 from inside to outside is insulated elastomeric element 5 and rivet 6 clampings successively, described rivet 6 is connected on the described cover plate 4, one end of cell connector 1 passes cover plate 4 and is connected with electric core assembly, and the other end spills in outside batteries; Spill in cell connector 1 surface of outside batteries and be provided with groove 2, described groove 2 safety effect that ruptured after being subjected to mechanical external force.
Being shaped as of cell connector 1 of the present utility model
Or
Shape.When cell connector 1 is subjected to external impact, groove 2 positions of cell connector 1 at first begin to internal strain, when cell connector 1 deflection acquires a certain degree, (outside impact has just been absorbed by cell connector 1, so cell connector 1 is difficult for being inserted into inside battery, simultaneously because the features of shape of cell connector 1, cell connector 1 is stopped by the insulating part on the cover plate, cell connector 1 equally also is difficult to be inserted into inside battery,) phenomenon of fracture appears in cell connector 1, whole power battery just is in a kind of off state like this, so battery just can not be short-circuited, burning, explosion safety accident, thereby the fail safe that has improved cell.
In the cell connector 1 that the utility model provides, the method preparation that described groove 2 can adopt mechanical field to know is arbitrarily perhaps made with methods such as punching presses; The degree of depth of described groove 2 is the 10%-95% of cell connector 1 thickness; The length of described groove 2 is the 50%-100% of cell connector 1 width; Groove 2 on the described cell connector 1 is one or more of.
Described cell connector 1 length direction is a directions X, and Width is the Y direction, and described groove 2 becomes 0-60 degree angle with cell connector 1Y direction, preferred 0 degree.
The thickness of described cell connector 1 can be decided according to the kind and the preparation needs of battery, and according to specific embodiments of the present utility model, the thickness of described cell connector 1 is the 0.2-20 millimeter, preferred 2.5 millimeters.
The width of described cell connector 1 can be decided according to the kind and the preparation needs of battery, and according to specific embodiments of the present utility model, the width of described cell connector 1 is the 2-20 millimeter, preferred 5 millimeters.
Described cell connector 1 can adopt various electric conducting material well known in the art to make, as fine copper or fine aluminium; Can determine according to battery size;
Be provided with soft in the described groove 2 and the filler filler of conductive capability and certain bond strength is arranged, such as tin, conductive plastic, conductive rubber etc.
The cell connector 1 that the utility model provides can be used for various batteries, as secondary cell.
Embodiment 2:
The invention also discloses a kind of battery; on the basis of embodiment 1; adopt following structure: the insulating sealer of the utility model battery comprises rivet 6 and insulation elastomeric element 5; as Fig. 6; Fig. 7; cell connector 1 from inside to outside is insulated elastomeric element 5 and rivet 6 clampings successively; rivet 6 is connected on the described cover plate 4; cover plate 4 is provided with the cover plate guard member 3 that coats described insulating sealer; cover plate guard member 3 is provided with the hole (not shown) of drawing for battery brace 1, and cover plate guard member 3 is connected with described insulating sealer insulation with cover plate 4.
Cover plate guard member 3 optional usefulness have insulation characterisitic, electrolyte resistance and fire-retardant material and make; for example plastics, rubber, resin; wherein plastics can adopt but be not limited to PFA, PES, MODIFIED PP; rubber can be selected for use but be not limited to ethylene propylene diene rubber; resin can be selected for use but be not limited to epoxy resin, phenol aldehyde modified epoxy resin etc., and its cover plate guard member 3 is preferably rubber cover plate guard member.Cover plate guard member 3 is provided with the hole (not shown) that can allow cell connector 1 draw, and the geomery and the cell connector in hole are complementary.Cover plate guard member 3 is structure as a whole or divides body structure, and the shape of cover plate guard member 3 and cover plate and cell connector 1 hermetically-sealed construction are complementary.Body structure separated the hole in described minute.Dividing body structure is the mutual buckle type structure.This mutual buckle type shape can be fit structure arbitrarily such as triangle, trapezoidal, square, rectangle or " U " shape.The mutual buckle type structure helps the engaging of branch body structure, makes connection more firm.The steam vent (not shown) of pressure release was avoided the impact failure of external force in order to protect safety valve when cover plate guard member 3 was provided with and is beneficial to safety valve and opens, and this steam vent is preferably the intersection fence structure.Described cover plate guard member 3 is for dividing a body structure, and in this minute body structure, two independent cover plate guard members 3 are by the mutual buckle type structure (not shown) that links together.This mutual buckle type is shaped as trapezoidal.And the trapezoidal hypotenuse of this trapezoidal mutual buckle type structure has guide effect, the favourable two independently engagings of cover plate guard member 3.Like this, both play fastening effect, played the effect of cover sheet again.
With reference to Figure 10, tightr for cover plate 4 and cover plate guard member 3 are cooperated, simultaneously also in order better to play the insulation protection effect, be provided with ledge structure 7 at the edge of cover plate guard member 3.When coating insulating cement paper outside the electrokinetic cell, because the existence of this cover plate guard member 3, thereby make the sharp-pointed position around the cover plate 6 can not puncture the insulation gummed paper and have potential safety hazard.
Embodiment 3:
The invention also discloses a kind of battery, as Fig. 6 and Fig. 7, on the basis of embodiment 2, adopt following structure: insulating sealer described in the utility model exceeds rivet 6 tops and encases rivet 6 tops formation turnup structure.Insulating sealer injection mo(u)lding in rivet 6.
Embodiment 4:
Present embodiment is mainly introduced power battery pack, and the battery that makes in embodiment 1 or 2 is connected according to the mode that the electric current of required output and Voltage Series or parallel connection or series and parallel combine.
As Fig. 8, Fig. 9 and shown in Figure 10 can be the annexation of parallel connection between the battery, can be by realizing serial or parallel connection between a plurality of batteries by the cell connector 1 that connects battery in a different manner.Be series connection between the battery, cell connector 1 of a battery is connected with the opposite polarity cell connector 1 of an adjacent battery, and the opposite polarity cell connector 1 of another cell connector 1 battery adjacent with another is connected.The mode that battery is connected includes but not limited to following mode: the negative terminal (not shown) that is positioned at the battery of an end is connected with the positive terminal (not shown) of adjacent battery, the positive terminal that perhaps is positioned at the battery of an end is connected with the negative terminal of adjacent battery, and the like, opposite polarity a pair of cell connector 1 welding of two adjacent batteries, thereby two batteries at the two ends of the battery pack that obtains respectively have a cell connector 1 not to be connected with other sheet cell connector 1, and the polarity of these two sheet cell connectors 1 is opposite, as the both positive and negative polarity of battery pack.
Connected mode between the cell connector 1 is for fitting, as long as the sheet cell connector 1 that will need to connect fits together and makes certain bonding strength arranged between the cell connector 1, under the preferable case, cell connector 1 welded.Welding can be existing various welding methods, and for example cold welding, supersonic welding, Laser Welding, soldering, flash butt welding, friction welding (FW), electric resistance welding etc. preferably adopt cold welding.Use cold welding only need provide enough static pressures just can realize reliable welding, and it is little, shockproof and do not have a relative displacement to be welded the object caloric value in the welding process.According to power battery pack provided by the utility model, also comprise other necessary assembly that battery pack is required, and the assembly method of battery pack is conventionally known to one of skill in the art, do not repeat them here.
Although carefully described the utility model with reference to its specific execution mode, but it will be understood to those of skill in the art that, under the prerequisite of the spirit and scope of the present utility model that do not deviate from the claims qualification, can make various changes in form and details.
Claims (18)
1, a kind of battery comprises shell, electric core assembly, the cell connector of cover plate and sheet;
The electricity core assembly is positioned in the space of shell and cover plate composition; The electricity core assembly comprises positive plate, negative plate and is arranged on barrier film between positive plate, negative plate;
One end of cell connector passes cover plate and is connected with electric core assembly;
It is characterized in that: described cell connector surface is provided with groove, the described groove safety effect that ruptured after being subjected to mechanical external force.
2, a kind of battery as claimed in claim 1, it is characterized in that: the other end of described cell connector is exposed to outside batteries, and the described outside batteries cell connector surface that is exposed to is provided with groove.
3, a kind of battery as claimed in claim 1, it is characterized in that: cell connector thickness is greater than 0.2 millimeter; Described cell connector width is greater than 2 millimeters.
4, a kind of battery as claimed in claim 1 is characterized in that: the degree of depth of cell connector groove is the 10%-95% of cell connector thickness; The length of described cell connector groove is the 50%-100% of cell connector width.
5, a kind of battery as claimed in claim 1 is characterized in that: described cell connector length direction is a directions X, and Width is the Y direction, and described groove becomes 0-60 degree angle with cell connector Y direction.
6, a kind of battery as claimed in claim 1 is characterized in that: be provided with filler in the described groove.
7, a kind of battery as claimed in claim 6 is characterized in that: described filler is tin or conductive plastic or conductive rubber.
8, a kind of battery as claimed in claim 1 is characterized in that: the groove on the described cell connector is one or more of.
9, a kind of battery as claimed in claim 1 is characterized in that: described electric core assembly and cover plate touching position are provided with insulating sealer, and insulating sealer comprises rivet and insulation elastomeric element.
10, a kind of battery as claimed in claim 9; it is characterized in that: described cover plate is provided with the cover plate guard member that coats described insulating sealer; described cover plate guard member is provided with the hole of drawing for the battery brace, and described cover plate guard member is connected with described insulating sealer insulation with described cover plate.
11, a kind of battery as claimed in claim 10 is characterized in that: described cover plate guard member comprises the branch body structure that two parts at least cooperatively interact.
12, a kind of battery as claimed in claim 11 is characterized in that: described minute body structure is the mutual buckle type structure.
13, a kind of battery as claimed in claim 12 is characterized in that: the mutual buckle type of described mutual buckle type structure is shaped as a kind of in triangle, trapezoidal, square, rectangle or " U " shape.
14, a kind of battery as claimed in claim 10 is characterized in that: described cover plate guard member is provided with steam vent, and described steam vent is for intersecting fence structure.
15, a kind of battery as claimed in claim 10 is characterized in that: described cover plate guard member has ledge structure, and described cover plate guard member is an insulator.
16, a kind of battery as claimed in claim 10 is characterized in that: described insulating sealer exceeds rivet top and encases rivet top formation turnup structure.
17, a kind of battery as claimed in claim 16 is characterized in that: the injection mo(u)lding in rivet of described insulating sealer.
18, a kind of battery pack comprises battery and cell connector, and by cell connector series connection or parallel connection or series-parallel connection connection, it is characterized in that: described battery comprises as the described battery of any claim of claim 1-17 between the described battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202074832U CN201349038Y (en) | 2008-08-26 | 2008-11-01 | Battery and battery pack |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810142082.8 | 2008-08-26 | ||
| CN200820146848.5 | 2008-08-26 | ||
| CN200820146851.7 | 2008-08-26 | ||
| CN200810142083.2 | 2008-08-26 | ||
| CN200820146848 | 2008-08-26 | ||
| CNU2008202074832U CN201349038Y (en) | 2008-08-26 | 2008-11-01 | Battery and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201349038Y true CN201349038Y (en) | 2009-11-18 |
Family
ID=41276968
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202074796U Expired - Lifetime CN201345384Y (en) | 2008-08-26 | 2008-11-01 | Battery pack |
| CNU2008202074832U Expired - Lifetime CN201349038Y (en) | 2008-08-26 | 2008-11-01 | Battery and battery pack |
| CN2008101818182A Active CN101662004B (en) | 2007-12-25 | 2008-11-14 | Battery cover board assembly, battery and battery pack, and manufacture method thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202074796U Expired - Lifetime CN201345384Y (en) | 2008-08-26 | 2008-11-01 | Battery pack |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101818182A Active CN101662004B (en) | 2007-12-25 | 2008-11-14 | Battery cover board assembly, battery and battery pack, and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN201345384Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010124562A1 (en) * | 2009-04-30 | 2010-11-04 | Byd Company Limited | Single cell and battery pack comprising the same |
| CN103999256A (en) * | 2011-10-13 | 2014-08-20 | Avl里斯脱有限公司 | Electrical energy accumulator |
| CN110247011A (en) * | 2019-07-13 | 2019-09-17 | 常州瑞德丰精密技术有限公司 | Battery cap with drainage function |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120189901A1 (en) * | 2011-01-21 | 2012-07-26 | Chia-Ming Chuang | Battery cell, battery module incorporated with same and method for producing the battery module |
| CN102569679A (en) * | 2011-12-30 | 2012-07-11 | 丁振荣 | Battery core, battery and method for sealing and fixing electrode and cap of battery |
| JP6950201B2 (en) * | 2016-04-25 | 2021-10-13 | 株式会社Ｇｓユアサ | Power storage element |
| JP2017199652A (en) * | 2016-04-25 | 2017-11-02 | 株式会社Ｇｓユアサ | Energy storage element |
| CN105958078B (en) * | 2016-06-27 | 2018-07-17 | 中银（宁波）电池有限公司 | Battery current collector |
| CN107204408B (en) * | 2017-06-05 | 2023-08-04 | 林州朗坤科技有限公司 | Full-lug square lithium battery and preparation method thereof |
| JP2019029225A (en) * | 2017-07-31 | 2019-02-21 | リチウム エナジー アンド パワー ゲゼルシャフト ミット ベシュレンクテル ハフッング ウント コンパニー コマンディトゲゼルシャフトＬｉｔｈｉｕｍ Ｅｎｅｒｇｙ ａｎｄ Ｐｏｗｅｒ ＧｍｂＨ ＆ Ｃｏ． ＫＧ | Power storage element |
| CN109841910B (en) * | 2019-02-28 | 2020-12-11 | 西安西电电气研究院有限责任公司 | Liquid metal battery |
| CN110739416A (en) * | 2019-11-07 | 2020-01-31 | 多氟多新能源科技有限公司 | optimized novel lithium battery cover plate assembly |
| CN113903971A (en) * | 2021-09-26 | 2022-01-07 | 中安芯界(莱西)新能源科技有限公司 | Slat battery chip |
| CN114430086A (en) * | 2022-01-25 | 2022-05-03 | 东莞新能安科技有限公司 | Battery core subassembly and battery |
| DE102022209569A1 (en) | 2022-09-13 | 2024-03-14 | Mahle International Gmbh | High-voltage connection, battery module and procedure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2754215Y (en) * | 2004-12-30 | 2006-01-25 | 比亚迪股份有限公司 | Cell |
| CN201374350Y (en) * | 2008-11-14 | 2009-12-30 | 比亚迪股份有限公司 | Battery, battery cover plate assembly and battery pack |
-
2008
- 2008-11-01 CN CNU2008202074796U patent/CN201345384Y/en not_active Expired - Lifetime
- 2008-11-01 CN CNU2008202074832U patent/CN201349038Y/en not_active Expired - Lifetime
- 2008-11-14 CN CN2008101818182A patent/CN101662004B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010124562A1 (en) * | 2009-04-30 | 2010-11-04 | Byd Company Limited | Single cell and battery pack comprising the same |
| CN103999256A (en) * | 2011-10-13 | 2014-08-20 | Avl里斯脱有限公司 | Electrical energy accumulator |
| CN103999256B (en) * | 2011-10-13 | 2016-08-24 | Avl里斯脱有限公司 | Accumulator |
| CN110247011A (en) * | 2019-07-13 | 2019-09-17 | 常州瑞德丰精密技术有限公司 | Battery cap with drainage function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN201345384Y (en) | 2009-11-11 |
| CN101662004A (en) | 2010-03-03 |
| CN101662004B (en) | 2012-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091118 |