CN205303594U - Lithium ion secondary cell with heat radiation structure - Google Patents
Lithium ion secondary cell with heat radiation structure Download PDFInfo
- Publication number
- CN205303594U CN205303594U CN201521040977.2U CN201521040977U CN205303594U CN 205303594 U CN205303594 U CN 205303594U CN 201521040977 U CN201521040977 U CN 201521040977U CN 205303594 U CN205303594 U CN 205303594U
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- battery
- overcoat polymer
- inner bag
- polymer
- metal shell
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Abstract
The utility model discloses a lithium ion secondary cell with heat radiation structure, including electric core, battery inner bag, polymer overcoat and heat dissipation metal casing, battery inner bag top surface opening, all the other each hard -pressed bales cover outside electric core, polymer overcoat sealed coating is outer at the battery inner bag, and heat dissipation metal casing fixes on polymer overcoat surface. The utility model discloses rational in infrastructure, battery security and availability factor are high, install into battery module simple accurate, have reliable security and operability. Have actual economic efficiency and using value.
Description
Technical field
This utility model relates to a kind of lithium rechargeable battery, particularly a kind of lithium rechargeable battery with radiator structure.
Background technology
Lithium rechargeable battery is used widely in digital electric, electric automobile and energy storage field. Lithium battery form is mainly cylinder, Soft Roll, aluminum hull and box hat. There is battery-heating in using and cause battery pole ear sealing place electrolyte leakage in aluminum plastic film Soft Roll lithium rechargeable battery, causes pyrophoricity accident on fire; Battery-heating in aluminum plastic film Soft Roll lithium rechargeable battery use procedure, reduces battery capacity and cycle life; Meanwhile, aluminum plastic film Soft Roll lithium rechargeable battery outer package easily punctures, and causes battery short circuit explosion safety accident on fire. Aluminum plastic film Soft Roll lithium rechargeable battery gets more and more at New-energy electric vehicle and energy storage field and is applied, and above-mentioned safety problem is urgently to be resolved hurrily.
Summary of the invention
In order to overcome the deficiencies in the prior art, this utility model provides a kind of rational in infrastructure, perfect heat-dissipating, the safe and reliable lithium rechargeable battery with radiator structure.
This utility model solves its technical problem and be the technical scheme is that
A kind of lithium rechargeable battery with radiator structure, including battery core, battery inner bag, overcoat polymer and heat radiating metal shell, described battery inner bag end face opening, all the other each hard-pressed bales overlay on outside battery core, described overcoat polymer is sealed and coated on battery inner bag outer layer, and heat radiating metal shell is fixed on overcoat polymer surface.
Wherein, described overcoat polymer upper and lower end is respectively arranged with epimere air vent and hypomere air vent, is provided with multiple louvre at the upper and lower end face of overcoat polymer, at the angular distribution battery core installing hole of overcoat polymer four.
It is fixed in the middle part of overcoat polymer it addition, described heat radiating metal enclosure bottom is planar metal plate, injection moulding; It is evenly distributed with heat dissipation metal fin on a metal plate; Described radiating fin is evenly distributed with fin louvre; Described heat radiating metal shell and overcoat polymer upper and lower end surface are in the same plane.
The beneficial effects of the utility model are: this utility model adopts battery inner bag package encapsulation lithium rechargeable battery battery core, adopt Shooting Technique by overcoat polymer sealed cell inner bag, improve battery hermetization and security performance; Adopt heat radiating metal shell to be coated on overcoat polymer surface, increase battery machine security performance and radiating efficiency, improve battery capacity and service life. Wherein, single battery directly connection in series-parallel can be assembled into set of cells, and set of cells has good in radiating effect and machine security performance, it is not necessary to increase extra heat dissipation assembly and set of cells mounting assembly, improves battery safety, service efficiency and business efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is Facad structure schematic diagram of the present utility model;
Fig. 2 is side structure schematic diagram of the present utility model;
Fig. 3 is the structural representation of this utility model overcoat polymer end face.
Detailed description of the invention
Referring to figs. 1 through Fig. 3, a kind of lithium rechargeable battery with radiator structure, including battery core 1, battery inner bag 2, overcoat polymer 3 and heat radiating metal shell 4, described battery inner bag 2 end face opening, all the other each hard-pressed bales overlay on outside battery core 1, and battery inner bag 2 thickness is 30 ~ 250 microns. Described overcoat polymer 3 is sealed and coated on battery inner bag 2 outer layer, and overcoat polymer 3 material is polyethylene, polypropylene, polymethyl methacrylate or heat conductive insulating silica gel; Heat radiating metal shell 4 is fixed on overcoat polymer 3 surface; Heat radiating metal shell 4 material is copper, rustless steel or aluminum.
This utility model adopts battery inner bag 2 package encapsulation lithium rechargeable battery battery core 1, adopts Shooting Technique by overcoat polymer 3 sealed cell inner bag, improves battery hermetization and security performance; Adopt heat dissipation metal metal shell 4 to be coated on overcoat polymer surface, increase battery machine security performance and radiating efficiency, improve battery capacity and service life. Wherein, single battery directly connection in series-parallel can be assembled into set of cells, and set of cells has good in radiating effect and machine security performance, it is not necessary to increase extra heat dissipation assembly and set of cells mounting assembly, improves battery safety, service efficiency and business efficiency.
In this utility model, described overcoat polymer 3 upper and lower end is respectively arranged with epimere air vent 31 and hypomere air vent 32, is provided with multiple louvre 33 at the upper and lower end face of overcoat polymer 3, and this structure serves good result of ventilating heat dissipation. At the angular distribution battery core installing hole 34 of overcoat polymer 3 four, it is possible to achieve battery series-parallel connection structure composition set of cells.
When battery is when high magnification high current charge-discharge, lug goes out to release amount of heat, the SOI xanthan polymer seal thickness of overcoat polymer 3 and high temperature strength are significantly larger than aluminum plastic film polypropylene seal, effectively prevent electrolyte leakage from causing battery catches fire combustion completion accident.
In this utility model, described heat radiating metal shell 4 bottom surface is that planar metal plate 41, injection moulding are fixed in the middle part of overcoat polymer 3; Metallic plate 41 is evenly distributed with heat dissipation metal fin 42; Described radiating fin 42 is evenly distributed with fin louvre 43; Described heat radiating metal shell 4 and overcoat polymer 3 upper and lower end surface are in the same plane. Rustless steel radiating fin 42 and fin louvre 43 energy effective, the amount of heat that battery causes in high power charging-discharging and long-time use procedure is derived in time, reduce battery temperature, thus being effectively improved cell safety use, battery capacity and service life.
This utility model is rational in infrastructure, connected by battery surrounding battery fixing hole fixing by metallic rod, it is possible to achieve the connection in series-parallel of battery, it is not necessary to increase additional battery module housing and heat abstractor. This utility model battery security and service efficiency are high, are mounted to battery module simple and easy to do, have secure safety and operability. There is real economy efficiency and using value.
Claims (3)
1. a lithium rechargeable battery with radiator structure, it is characterized in that: include battery core (1), battery inner bag (2), overcoat polymer (3) and heat radiating metal shell (4), described battery inner bag (2) end face opening, all the other each hard-pressed bales overlay on battery core (1) outward, described overcoat polymer (3) is sealed and coated on battery inner bag (2) outer layer, and heat radiating metal shell (4) is fixed on overcoat polymer (3) surface.
2. a kind of lithium rechargeable battery with radiator structure according to claim 1, it is characterized in that described overcoat polymer (3) upper and lower end is respectively arranged with epimere air vent (31) and hypomere air vent (32), it is provided with multiple louvre (33), the angular distribution battery core installing hole (34) of overcoat polymer (3) four at overcoat polymer (3) upper and lower end face.
3. a kind of lithium rechargeable battery with radiator structure according to claim 1, it is characterised in that described heat radiating metal shell (4) bottom surface is that planar metal plate (41), injection moulding are fixed on overcoat polymer (3) middle part; Metallic plate (41) is evenly distributed with heat dissipation metal fin (42); Described radiating fin (42) is evenly distributed with fin louvre (43); Described heat radiating metal shell (4) and overcoat polymer (3) upper and lower end surface are in the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040977.2U CN205303594U (en) | 2015-12-15 | 2015-12-15 | Lithium ion secondary cell with heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040977.2U CN205303594U (en) | 2015-12-15 | 2015-12-15 | Lithium ion secondary cell with heat radiation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205303594U true CN205303594U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521040977.2U Active CN205303594U (en) | 2015-12-15 | 2015-12-15 | Lithium ion secondary cell with heat radiation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205303594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114204133A (en) * | 2021-12-09 | 2022-03-18 | 惠州亿纬锂能股份有限公司 | Method for solving expansion of winding type battery cell |
-
2015
- 2015-12-15 CN CN201521040977.2U patent/CN205303594U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114204133A (en) * | 2021-12-09 | 2022-03-18 | 惠州亿纬锂能股份有限公司 | Method for solving expansion of winding type battery cell |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |