CN102420313A - Battery - Google Patents
Battery Download PDFInfo
- Publication number
- CN102420313A CN102420313A CN2011103951715A CN201110395171A CN102420313A CN 102420313 A CN102420313 A CN 102420313A CN 2011103951715 A CN2011103951715 A CN 2011103951715A CN 201110395171 A CN201110395171 A CN 201110395171A CN 102420313 A CN102420313 A CN 102420313A
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- CN
- China
- Prior art keywords
- battery
- pole piece
- cathode
- anode
- barrier film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
Abstract
The invention discloses a battery, which comprises a battery shell, a battery core held in the battery shell, and a battery cover covered on the battery shell, wherein the battery core comprises cathode plates, anode plates and insulated isolating membranes arranged between the cathode plates and the anode plates; the cathode plates and the anode plates are alternately laminated; and two sides of each cathode plate are respectively provided with an anode plate. The cathode plates and the anode plates are alternately laminated in the battery, and the two sides of each cathode plate are respectively provided with the anode plate, the two sides of each cathode plate can be reacted with the anode plates, and the outer lateral surface of the outermost cathode plate can also participate in the reaction, so that the reaction area of the polar plates is increased.
Description
Technical field
The present invention relates to a kind of battery, especially about a kind of battery with stacked pole piece.
Background technology
Generally speaking, the shape of battery is divided into two kinds of column type and squares, and the composition of battery then comprises battery container (housing of battery outside), battery core cap, and the battery of inside; Battery is put into battery container, battery core cap and battery container are combined closely with modes such as welding again, inject the electrolyte at last in the battery, so far, the main manufacturing process of battery is accomplished.Battery mainly is to be made up of materials such as positive pole, negative pole, barrier films, then is full of electrolyte between battery and battery structure usually.Usually, the shape of battery relates to the processing procedure and the design of battery; Cylinder battery for example, its battery is generally coiling body, and square battery, its battery is generally the lamination body.
The processing procedure of lamination body is divided into Z font laminated layer method again; Be that positive and negative plate, barrier film all adopt the zigzag folding mode; And each plus or minus pole piece all has adjacent with it plus or minus pole piece, specifically please refer to Fig. 1, and wherein adjacent two faces 101,102 of positive plate are not corresponding with negative plate; Electronics on it also is difficult to be wasted through the half the area that arrives at the cathode pole piece battery pole piece, and can't realize powerful discharging and recharging; Barrier film bag method is about to each sheet positive and negative plate isolation pocket is set outward, and said isolation pocket is formed by welding, and its processing procedure is complicated, and cost is higher; The barrier film microtomy is bonded in barrier film on the electrode plates, prevent the short circuit of moving the pole piece that causes each other of barrier film and pole piece, but this mode has increased the operation of bonding, and need cut barrier film, the same manufacturing cost that increases.
Yet above-mentioned Z font lamination body structure all fails to take into full account the relation that discharges and recharges of positive/negative plate.Positive pole all is the two sided coatings positive electrode, and during charging, lithium ion breaks away from from positive pole, is embedded into negative pole through electrolyte, and the compensation charge of electronics supplies to negative pole by external circuit simultaneously; Then opposite during discharge, lithium ion breaks away from from negative pole, is embedded into positive electrode through electrolyte.With reference to figure 2; If anodal 103 than negative pole one deck more than 104; Then the lithium ion of Far Left and rightmost anode pole piece medial surface 105 is gone to the lateral surface 106 of cathode pole piece in charging; But the lithium ion of Far Left and rightmost anode pole piece lateral surface 107 does not then have the negative pole that can react with it, causes lithium ion to produce reaction with other spare parts (like battery container or battery cover) of battery, makes that battery life shortens, quality is not good.
So,, still have further improved space to this type of battery case design.
Summary of the invention
The object of the present invention is to provide a kind of battery, the lithium ion of the both sides of its each anode pole piece can fully be participated in the reaction of battery.
To achieve these goals; The present invention can adopt following technical scheme: a kind of battery; Comprise battery case, be housed in the battery of battery case, the battery cover of shade what battery case, said battery comprises anode pole piece, cathode pole piece, is arranged at the barrier film of the insulation between the positive/negative plate; The alternately laminated setting of said anode pole piece and cathode pole piece, wherein the both sides of each sheet anode pole piece all are provided with a slice cathode pole piece.
Further, said barrier film is the zigzag setting, and each anode pole piece and cathode pole piece are arranged in the folding formed groove of barrier film.
Further, said anode pole piece is an aluminium foil, and the both sides of anode pole piece are coated with the lithium ion material.
Further, said cathode pole piece is copper sheet or graphite, and is coated with carbon-based material on the cathode pole piece.
Further, said carbon-based material is a CNT.
Further, the carbon-based material coating weight of each sheet cathode pole piece Duos 10% at least than the needed coating weight of the lithium ion of anode pole piece.
Further, the uncoated carbon-based material of the lateral surface of said outermost two cathode pole pieces.
Further, said barrier film is a kind of in polypropylene, polyethylene, the poly terephthalic acid.
Further, the said battery outside is coated with wrapper, and said wrapper is identical with barrier material.
Further, said wrapper is extended to form by barrier film, and is wound in the battery outside.
Beneficial effect of the present invention is following: the alternately laminated positive/negative plate that is provided with in the battery; And the both sides of each sheet anode pole piece all are provided with a slice cathode pole piece; Then the two sides of the anode pole piece of each sheet can be reacted with cathode pole piece; And the lateral surface of outermost anode pole piece also can be participated in reaction, has increased the pole piece response area.
Description of drawings
Fig. 1 is the sketch map of the battery of prior art;
Fig. 2 is the sketch map of another battery of prior art;
Fig. 3 is the sketch map of the main perspective degree of battery of the present invention;
Fig. 4 is the sketch map of battery part assembly of the present invention.
Embodiment
See also shown in Fig. 3-4, battery 10 involved in the present invention mainly comprises battery container 1, is contained in the battery 2 of battery container 1, the battery cover 3 of shade what battery container.
Said battery 2 mainly comprises anode pole piece 21, cathode pole piece 22 and is arranged on the barrier film 23 between the positive/negative plate.
Said anode pole piece 21 is the rectangular metal material; Be preferably aluminium foil; Also can be other materials; Pole piece is provided with the lug 210 that the electric current of anode pole piece is drawn, and said lug can the mode through welding combine after battery 2 assemblings are accomplished, and the two sides of each sheet anode pole piece 21 also is coated with the lithium ion material.
Said cathode pole piece 22 also is the electric conducting material of rectangle, is generally conducting metal, is preferably copper, also can adopt other materials such as graphite.The two sided coatings of cathode pole piece 22 has carbon-based material, like materials such as CNTs.Also be provided with negative lug (not shown) on the said cathode pole piece 22, the electric current on the cathode pole piece 22 is drawn, said negative lug 220 can the mode through welding combine after battery 2 assemblings are accomplished.Because the lithium ion of anode pole piece 21 can directly not flow to the lateral surface 212 of two cathode pole pieces of outermost,,, reduce cost to save material so the lateral surface 212 of outermost two cathode pole pieces can not be coated with said carbon-based material.The lithium ion that the anode pole piece that each sheet cathode pole piece is corresponding produces needs cathode pole piece to be coated with some carbon-based materials to hold; The carbon-based material coating weight of each sheet cathode pole piece Duos 10% than the needed coating weight of the lithium ion of anode pole piece, can react with anode pole piece better to guarantee each sheet cathode pole piece better.
With reference to figure 4, anode pole piece 21 and cathode pole piece 22 alternately laminated formula settings, each said anode pole piece 21 is arranged between two cathode pole pieces 22, and promptly all there is a cathode pole piece 22 both sides of each anode pole piece 21.At above-mentioned positive and negative plate 21, also be provided with barrier film 23 between 22, said barrier film 23 adopts the organic substances of insulation usually, like materials such as polypropylene, polyethylene, poly terephthalic acids.And in the preferred embodiment, this barrier film 23 is folding, complete, the continuous barrier film of zigzag, and said positive and negative plate 21,22 is arranged at barrier film 23 folding formed grooves respectively.
After said anode pole piece 21, cathode pole piece 22, barrier film 23 assemblings were accomplished, the outside also was provided with a wrapper (not shown), with said assembly parcel.This wrapper can adopt and the barrier film identical materials; Also can be when barrier film be folded into zigzag, extend the barrier film of reserving certain-length at the end of barrier film, and the barrier film that will reserve is wound on the said assembly that assembles.
For the person of ordinary skill of the art, that under instruction of the present invention, is done changes to equivalence of the present invention, must be included in the scope that claim of the present invention advocates.
Claims (10)
1. battery; Comprise battery case; Be housed in the battery of battery case, the battery cover of shade what battery case; Said battery comprises anode pole piece, cathode pole piece, is arranged at the barrier film of the insulation between the positive/negative plate, and the alternately laminated setting of said anode pole piece and cathode pole piece is characterized in that: the both sides of each sheet anode pole piece all are provided with a slice cathode pole piece.
2. battery as claimed in claim 1 is characterized in that: said barrier film is the zigzag setting, and each anode pole piece and cathode pole piece are arranged in the folding formed groove of barrier film.
3. battery as claimed in claim 1 is characterized in that: said anode pole piece is an aluminium foil, and the both sides of anode pole piece are coated with the lithium ion material.
4. battery as claimed in claim 1 is characterized in that: said cathode pole piece is copper sheet or graphite, and is coated with carbon-based material on the cathode pole piece.
5. battery as claimed in claim 4 is characterized in that: said carbon-based material is a CNT.
6. battery as claimed in claim 4 is characterized in that: the carbon-based material coating weight of each sheet cathode pole piece Duos 10% at least than the needed coating weight of the lithium ion of anode pole piece.
7. battery as claimed in claim 4 is characterized in that: the uncoated carbon-based material of the lateral surface of said outermost two cathode pole pieces.
8. battery as claimed in claim 1 is characterized in that: said barrier film is a kind of in polypropylene, polyethylene, the poly terephthalic acid.
9. battery as claimed in claim 1 is characterized in that: the said battery outside is coated with wrapper, and said wrapper is identical with barrier material.
10. battery as claimed in claim 9 is characterized in that: said wrapper is extended to form by barrier film, and is wound in the battery outside.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103951715A CN102420313A (en) | 2011-12-02 | 2011-12-02 | Battery |
| US13/361,592 US20130143094A1 (en) | 2011-12-02 | 2012-01-30 | Lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103951715A CN102420313A (en) | 2011-12-02 | 2011-12-02 | Battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102420313A true CN102420313A (en) | 2012-04-18 |
Family
ID=45944612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103951715A Pending CN102420313A (en) | 2011-12-02 | 2011-12-02 | Battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102420313A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900905A (en) * | 2015-06-03 | 2015-09-09 | 深圳市迪凯特电池科技有限公司 | Laminated lithium ion battery and production process thereof |
| CN105489938A (en) * | 2015-07-31 | 2016-04-13 | 万向A一二三***有限公司 | Lithium ion battery lamination mode |
| CN110970680A (en) * | 2018-09-28 | 2020-04-07 | 有量科技股份有限公司 | Method for disassembling battery core |
| CN113571761A (en) * | 2021-09-26 | 2021-10-29 | 东莞塔菲尔新能源科技有限公司 | Clamping and stacking type electrode assembly and manufacturing method thereof |
| WO2022205192A1 (en) * | 2021-03-31 | 2022-10-06 | 宁德新能源科技有限公司 | Electrochemical apparatus and electronic apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1591959A (en) * | 2003-09-01 | 2005-03-09 | 比亚迪股份有限公司 | Laminated lithium ion secondary cell |
| WO2005022677A1 (en) * | 2003-09-01 | 2005-03-10 | Byd Company Limited | Cylindrical lithium ion secondary battery |
-
2011
- 2011-12-02 CN CN2011103951715A patent/CN102420313A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1591959A (en) * | 2003-09-01 | 2005-03-09 | 比亚迪股份有限公司 | Laminated lithium ion secondary cell |
| WO2005022677A1 (en) * | 2003-09-01 | 2005-03-10 | Byd Company Limited | Cylindrical lithium ion secondary battery |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900905A (en) * | 2015-06-03 | 2015-09-09 | 深圳市迪凯特电池科技有限公司 | Laminated lithium ion battery and production process thereof |
| CN105489938A (en) * | 2015-07-31 | 2016-04-13 | 万向A一二三***有限公司 | Lithium ion battery lamination mode |
| CN110970680A (en) * | 2018-09-28 | 2020-04-07 | 有量科技股份有限公司 | Method for disassembling battery core |
| WO2022205192A1 (en) * | 2021-03-31 | 2022-10-06 | 宁德新能源科技有限公司 | Electrochemical apparatus and electronic apparatus |
| CN113571761A (en) * | 2021-09-26 | 2021-10-29 | 东莞塔菲尔新能源科技有限公司 | Clamping and stacking type electrode assembly and manufacturing method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120418 |