CN201066698Y - Round lithium ion battery - Google Patents
Round lithium ion battery Download PDFInfo
- Publication number
- CN201066698Y CN201066698Y CNU2007201217891U CN200720121789U CN201066698Y CN 201066698 Y CN201066698 Y CN 201066698Y CN U2007201217891 U CNU2007201217891 U CN U2007201217891U CN 200720121789 U CN200720121789 U CN 200720121789U CN 201066698 Y CN201066698 Y CN 201066698Y
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- ion battery
- supporter
- battery
- column lithium
- 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
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 21
- 238000010276 construction Methods 0.000 claims description 4
- 238000004880 explosion Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a cylindrical lithium ion battery which comprises a cylinder, a battery unit in the cylinder, an upper coverplate and a lower coverplate for sealing the cylinder. The axle center of the battery unit is provided with a support article and the support article is a prism. The prism support article can avoid the thermal concentration problem when the battery is partially extruded and effectively reduce the battery explosion and fire rate.
Description
[technical field]
The present invention relates to the lithium battery field, is specifically related to column lithium ion battery.
[background technology]
Along with developing rapidly of electronics industry, information industry, people are more and more higher to the requirement of all kinds of appliances power sources.Column lithium ion battery is employed multiple mobile device as high capacity power source, as mobile phone, digital camera, notebook computer, portable power tool.
Usually lithium ion battery can mainly be divided into rectangular lithium ion battery, column lithium ion battery with regard to its profile, and column lithium ion battery has less surface area and Capacity Ratio than rectangular lithium ion battery, so radiating effect is far short of what is expected than rectangular cell.So the heat of column lithium ion battery inside more is easy to generate potential safety hazard, particularly when heavy-current discharge, very easily cause battery explosion.
For this reason, the technical staff adopts columnar supporter to be used to address the above problem; But when the battery part was squeezed, the utmost point group of coiling was formed into the small size short circuit at the supporter place easily, and the supporter with cambered surface easily causes heat too concentrated, thereby caused the battery phenomenon on fire of blasting.
[summary of the invention]
The objective of the invention is to solve be squeezed heat that the back supporter causes easily of existing cylindrical battery and concentrate and cause the battery technical problem on fire of blasting, thereby a kind of column lithium ion battery of high security is provided.
The technical solution of the utility model: a kind of column lithium ion battery, comprise cylindrical shell, be contained in the battery unit of inner barrel, the upper cover plate that is used for sealed cylinder, lower cover, the battery unit axle center is provided with supporter, and this supporter is prism-shaped.
Further, above support is a hollow-core construction.
Further, the sidewall of above support is provided with the centre joint.
Further, supporter is the prism of 3～8 ribs, the prism of preferred 6 ribs.
Further, supporter is provided with a plurality of through holes.
According to embodiment, set forth beneficial effect of the present invention: 1, when the battery part is squeezed, the supporter supports utmost point group of prism-shaped makes the short circuit of inside battery multiple spot, rather than the partial face short circuit, therefore can avoid heat to concentrate the chemical reaction that causes, effectively reduce battery explosion probability on fire.2, supporter employing hollow-core construction is that economical with materials can alleviate battery weight again.Curvature changing was little when 3, supporter adopted 6 ribs can guarantee utmost point group coiling, avoided the active material on the utmost point group to come off.4, a plurality of through holes are set on the supporter and have solved, the ageing insufficient battery charging and discharging performance poor technical problem that cause slow because of electrolyte permeability.
[description of drawings]
Fig. 1 is the profile of cylinder type lithium battery among the embodiment 1;
Fig. 2 is the structure chart of supporter among the embodiment 1,2;
Fig. 3 is the A-A cutaway view of Fig. 3.
[embodiment]
Need to prove that embodiment is the preferred construction mode, supporter wherein can not be provided with axially open, and the cylindrical shell of sealed cell unit also can adopt the structure of two cap assemblies sealings of penetrating usefulness up and down.
Claims (7)
1. a column lithium ion battery comprises cylindrical shell, is contained in the battery unit of inner barrel, the upper cover plate that is used for sealed cylinder, lower cover, and the battery unit axle center is provided with supporter, it is characterized in that, supporter is prism-shaped.
2. column lithium ion battery according to claim 1 is characterized in that, supporter is a hollow-core construction.
3. column lithium ion battery according to claim 2 is characterized in that the sidewall of above support is provided with the centre joint.
4. column lithium ion battery according to claim 1 is characterized in that, supporter is the prism of 3～8 ribs.
5. column lithium ion battery according to claim 4 is characterized in that, supporter is the prism of 6 ribs.
6. according to any described column lithium ion battery of claim 2～3, it is characterized in that supporter is provided with a plurality of through holes.
7. column lithium ion battery according to claim 4 is characterized in that supporter is provided with a plurality of through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201217891U CN201066698Y (en) | 2007-07-26 | 2007-07-26 | Round lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201217891U CN201066698Y (en) | 2007-07-26 | 2007-07-26 | Round lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201066698Y true CN201066698Y (en) | 2008-05-28 |
Family
ID=39483881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201217891U Expired - Lifetime CN201066698Y (en) | 2007-07-26 | 2007-07-26 | Round lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201066698Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362274A (en) * | 2014-11-28 | 2015-02-18 | 江苏永昌新能源科技有限公司 | Safe and heat-radiation lithium battery shell |
-
2007
- 2007-07-26 CN CNU2007201217891U patent/CN201066698Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362274A (en) * | 2014-11-28 | 2015-02-18 | 江苏永昌新能源科技有限公司 | Safe and heat-radiation lithium battery shell |
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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 |
Granted publication date: 20080528 |
|
| CX01 | Expiry of patent term |