CN211045606U - Novel square battery structure - Google Patents
Novel square battery structure Download PDFInfo
- Publication number
- CN211045606U CN211045606U CN201921552533.5U CN201921552533U CN211045606U CN 211045606 U CN211045606 U CN 211045606U CN 201921552533 U CN201921552533 U CN 201921552533U CN 211045606 U CN211045606 U CN 211045606U
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- China
- Prior art keywords
- metal terminal
- battery
- laminate polymer
- soft package
- square
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a pair of novel square battery structure, including square aluminum hull and laminate polymer battery, square aluminum hull includes apron and casing, apron and casing fixed connection, and laminate polymer battery sets up in the aluminum hull, is equipped with anodal metal terminal and negative pole metal terminal on the apron, anodal metal terminal and laminate polymer battery's anodal electric connection, negative pole metal terminal and laminate polymer battery's negative pole electric connection. The utility model discloses can reduce this novel square battery structure because of sealed bad emergence probability that causes the weeping problem, have higher energy density, and have higher reliability.
Description
Technical Field
The utility model relates to a battery technology field, concretely relates to novel square battery structure.
Background
With the development of society, people pay more and more attention to environmental problems, new energy automobile technology is accepted by more and more consumers, and new energy automobiles are expected to gradually replace traditional automobiles in 2020. With the annual increase of the demand of new energy automobiles, the demand of the electric automobile market for power batteries is larger and larger, and the requirement for the power batteries is higher and higher. The requirements are mainly manifested in two aspects: energy density and battery reliability. How to improve the energy density and reliability of the battery is a matter of great concern to those skilled in the art.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that the background art exists, the utility model provides a novel square battery structure can effectively improve reliability and energy density.
The utility model provides a pair of novel square battery structure, including square aluminum hull and laminate polymer battery, square aluminum hull includes apron and casing, and laminate polymer battery sets up in the casing, is equipped with anodal metal terminal and negative pole metal terminal on the apron, anodal metal terminal and laminate polymer battery's anodal electric connection, negative pole metal terminal and laminate polymer battery's negative pole electric connection, apron and casing fixed connection.
Preferably, laminate polymer battery includes packaging film and laminate polymer core, and the packaging film cladding has anodal ear and negative pole ear in the laminate polymer core outside, and anodal ear passes packaging film and anodal metal terminal electric connection, and the negative pole ear passes packaging film and negative pole metal terminal electric connection.
Preferably, the packaging film is a PET composite film.
Preferably, the cover plate and the housing are welded.
The utility model provides a pair of novel square battery structure has following beneficial effect:
(1) Through replacing the laminate polymer battery to roll up the core setting in square aluminum shell, because of laminate polymer battery itself has certain leakproofness, compare ordinary square battery and increased one seal structure, can reduce this novel square battery structure because of the sealed emergence probability who harmfully causes the weeping problem.
(2) Because laminate polymer battery has higher energy density, can make laminate polymer battery and square aluminum hull compound novel square battery structure that forms have higher energy density.
(3) Because the square aluminum shell has stronger mechanical strength, the novel square battery structure has higher reliability.
(4) With square aluminum shell batteries with other structures, the structure has no problem of shell corrosion caused by negative short circuit, and can improve the reliability of the battery;
Drawings
Fig. 1 is a schematic structural diagram of a novel square battery structure provided by the present invention.
Detailed Description
Referring to fig. 1, the utility model provides a novel square battery structure, including square aluminum hull 1 and laminate polymer battery 2, square aluminum hull 1 is including apron 11 and casing 12, and laminate polymer battery 2 sets up in casing 12, is equipped with anodal metal terminal and negative pole metal terminal on the apron 11, anodal metal terminal and laminate polymer battery 2's anodal electric connection, negative pole metal terminal and laminate polymer battery 2's negative pole electric connection, apron 11 and casing 12 fixed connection.
The utility model discloses a replace the roll core with laminate polymer battery 2 and set up in square aluminum shell 1, because of laminate polymer battery 2 has certain leakproofness itself, increased seal structure one compared with ordinary square battery, can reduce the emergence probability that this novel square battery structure causes the weeping problem because of sealing badly, and because of laminate polymer battery 2 has higher energy density, can improve the monomer energy density of this novel square battery structure; and because square aluminum hull 1 has stronger mechanical strength, with the square aluminum hull battery of other structures, this structure does not have the casing corrosion problem that the negative pole short circuit causes, can promote this novel square battery reliability.
In this embodiment, the pouch battery 2 includes a packaging film and a pouch cell, the packaging film is wrapped outside the pouch cell, the pouch cell has a positive tab and a negative tab, the positive tab passes the packaging film and is electrically connected with a positive metal terminal, and the negative tab passes the packaging film and is electrically connected with a negative metal terminal.
In the present embodiment, the packaging film is a PET composite film. The PET composite film is transparent in material and light in weight, and can observe the inside gas production and the pole piece expansion process of the soft package battery when the procedures such as formation, capacity grading and the like are carried out, so that the research on a battery system is facilitated.
In the present embodiment, the cover plate 11 and the case 12 are welded and fixed, so that the assembled novel prismatic battery is structurally stable.
The utility model provides a manufacturing process of novel square battery structure includes following step:
Flatly pressing and measuring the short length of the wound or laminated roll core, then placing the roll core into a packaging film, and carrying out top sealing on the packaging film to obtain a soft package battery semi-finished product;
Vacuum baking, liquid injection, infiltration, formation, aging and capacity grading are carried out on the semi-finished product of the soft package battery to obtain a soft package battery 2;
The finished product of the soft package battery is connected with the cover plate 11, the soft package battery 2 is placed into the shell, the cover plate 11 and the shell 12 are sealed and fixed, and a novel square battery structure is obtained.
The utility model discloses with the semi-manufactured form of laminate polymer battery go on to change into, process such as infiltration, improve the efficiency of battery production, can reduce electrolyte simultaneously and annotate the liquid volume, promote the monomer energy density of battery.
Specifically, the packaging film in the manufacturing process is a PET composite film.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (2)
1. The novel square battery structure is characterized by comprising a square aluminum shell (1) and a soft package battery (2), wherein the square aluminum shell (1) comprises a cover plate (11) and a shell (12), the soft package battery (2) is arranged in the shell (12), the cover plate (11) is provided with a positive metal terminal and a negative metal terminal, the positive metal terminal is electrically connected with the positive electrode of the soft package battery (2), the negative metal terminal is electrically connected with the negative electrode of the soft package battery (2), and the cover plate (11) is fixedly connected with the shell (12);
The soft package battery (2) comprises a packaging film and a soft package battery cell, the packaging film is coated on the outer side of the soft package battery cell, the soft package battery cell is provided with a positive electrode tab and a negative electrode tab, the positive electrode tab penetrates through the packaging film to be electrically connected with a positive electrode metal terminal, and the negative electrode tab penetrates through the packaging film to be electrically connected with a negative electrode metal terminal;
The packaging film is a PET composite film.
2. The novel prismatic battery structure of claim 1, wherein the cover plate (11) and the case (12) are welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921552533.5U CN211045606U (en) | 2019-09-18 | 2019-09-18 | Novel square battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921552533.5U CN211045606U (en) | 2019-09-18 | 2019-09-18 | Novel square battery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211045606U true CN211045606U (en) | 2020-07-17 |
Family
ID=71567855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921552533.5U Active CN211045606U (en) | 2019-09-18 | 2019-09-18 | Novel square battery structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211045606U (en) |
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2019
- 2019-09-18 CN CN201921552533.5U patent/CN211045606U/en active Active
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