CN202259547U - Button-type lithium battery with novel negative electrode cap set - Google Patents
Button-type lithium battery with novel negative electrode cap set Download PDFInfo
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- CN202259547U CN202259547U CN 201120253633 CN201120253633U CN202259547U CN 202259547 U CN202259547 U CN 202259547U CN 201120253633 CN201120253633 CN 201120253633 CN 201120253633 U CN201120253633 U CN 201120253633U CN 202259547 U CN202259547 U CN 202259547U
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- negative electrode
- battery
- lithium battery
- sealing
- negative
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- Y02E60/12—
Abstract
The utility model provides a button-type lithium battery with a novel negative electrode cap set. The button-type lithium battery with the novel negative electrode cap set comprises a negative electrode shell, a negative electrode, a diaphragm, a positive electrode, a current collector and a positive electrode shell, wherein a sealing rubber ring is inlaid on the peripheral edge of the negative electrode shell to form the negative electrode cap set; the positive electrode shell and the negative electrode shell are in sealing fit to form a sealed space; the sealed space is filled with electrolyte; and an annular groove is formed on the outer end surface of the sealing rubber ring. Due to the special annular groove design on the outer end surface of the sealing rubber ring of the negative electrode cap set, when the battery is extruded and sealed, a sealing aim can be fulfilled more easily; and the sealing opening of the battery is difficult to deform, so that the planeness and the parallelism of the upper surface and the lower surface of the battery are ensured and the sealing performance and the storage performance of the battery are improved.
Description
Technical field
The utility model belongs to field of batteries, relates in particular to a kind of button lithium battery with novel negative cover group.
Background technology
Button lithium battery is a kind of novel chemical power source, and as the main fresh combatants of chemical power source, its market prospects are very extensive, can be widely used in electrical source of power and memory power supply.As battery, at first its storge quality will be got well, and secondly with volume or the highest with nominal rating capacitance need, could get market and client by Luo.
As depicted in figs. 1 and 2; Be existing a kind of button lithium battery structure; It comprises negative electrode casing 11, negative pole 12, barrier film 13, positive pole 14, collector 15, the anode cover 16 that is cascading, and negative electrode casing 11 outer peripheral edges are inlaid with O-ring seal 17, after anode cover 16 cooperates with negative electrode casing 11; O-ring seal 17 plays sealing function, in anode cover 16 seal cavity that 11 cooperations form with negative electrode casing electrolyte 18 is housed.This button lithium battery though O-ring seal 17 contacts with anode cover 16 sealings, has guaranteed the sealing property of battery, its sealing and the non-optimum of storge quality, and profile is wayward, the top and bottom out-of-flatness.
The utility model content
The purpose of the utility model is to overcome the deficiency of above-mentioned prior art, and a kind of button lithium battery with novel negative cover group is provided, and it can guarantee the evenness of battery top and bottom, can greatly improve the sealing property and the storge quality of battery.
The utility model is to realize like this; A kind of button lithium battery with novel negative cover group; Comprise negative electrode casing, negative pole, barrier film, positive pole, collector, anode cover, said negative electrode casing outer peripheral edges are inlaid with O-ring seal and form the negative cover group, and said anode cover and negative electrode casing are sealed and matched and form a confined space; Be filled with electrolyte in the said seal cavity, said O-ring seal outer face offers annular groove.
Particularly, the cross section of said annular groove is trapezoidal, V-type, U type or arc.
The utility model is offered annular groove through the O-ring seal outer face in the negative cover group; Because of the special design of negative cover group with annular groove; Make battery when crush seal, reach sealing purpose more easily; Battery is not yielding in the process of sealing simultaneously, has guaranteed the flatness and the depth of parallelism of battery top and bottom, has improved the sealing property and the storge quality of battery.
Description of drawings
Fig. 1 is the structure chart of the button lithium battery that provides of prior art;
Fig. 2 is negative electrode casing and the sketch map of O-ring seal among Fig. 1;
Fig. 3 is the structure chart of the button lithium battery that provides of the utility model embodiment;
Fig. 4 is negative electrode casing and the sketch map of O-ring seal among Fig. 3.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is further described.
Like Fig. 3 and shown in Figure 4; A kind of button lithium battery that the utility model embodiment provides with novel negative cover group; Comprise the negative electrode casing 21, negative pole 22, barrier film 23, positive pole 24, collector 25, the anode cover 26 that are cascading; Negative electrode casing 21 outer peripheral edges are inlaid with O-ring seal 27 and form the negative cover group, seal through crush seal cushion rubber 27 when anode cover 26 cooperates with negative electrode casing 21, and anode cover 26 forms a confined space after being sealed and matched with negative electrode casing 21; Be filled with electrolyte 28 in the sealing space, O-ring seal 27 outer faces offer annular groove 271.
The utility model is offered annular groove 271 through O-ring seal 27 outer faces in the negative cover group; Because of the special design of negative cover group with annular groove 271; Make battery when crush seal, reach sealing purpose more easily; Battery is not yielding in the process of sealing simultaneously, has guaranteed the flatness and the depth of parallelism of battery top and bottom, has improved the sealing property and the storge quality of battery.
Geometries such as in the present embodiment, that the cross section of annular groove 271 is is trapezoidal, V-type, U type or arc.
In the present embodiment, negative electrode casing 21 is processed metal edge plastic together with O-ring seal 27, after promptly subpunch is made negative electrode casing 21, inlays O-ring seal 27 in negative electrode casing 21 outer peripheral edges then, thereby processes integrated metal edge plastic.
The preparation technology of the button lithium battery of the utility model is following:
(1) makes negative electrode casing 21 earlier, inlay O-ring seal 27 in the outer peripheral edges of negative electrode casing 21 again, thereby process metal edge plastic;
(2) adopt the semitight forms to be packaged together negative electrode casing 21, negative pole 22, barrier film 23, electrolyte 28, positive pole 24, collector 25 and anode cover 26 then, thereby process button lithium battery.
More than describe and be merely preferred embodiment of the present invention; Those skilled in the art should understand; The present invention is not restricted to the described embodiments; Under the prerequisite that does not break away from the present invention's spirit and principle, the present invention also has various changes and modifications, and these variations and improvement all fall within protection scope of the present invention.
Claims (2)
1. button lithium battery with novel negative cover group; Comprise negative electrode casing, negative pole, barrier film, positive pole, collector, anode cover; Said negative electrode casing outer peripheral edges are inlaid with O-ring seal and form the negative cover group; Said anode cover and negative electrode casing are sealed and matched and form a confined space, are filled with electrolyte in the said seal cavity, it is characterized in that: said O-ring seal outer face offers annular groove.
2. a kind of button lithium battery with novel negative cover group as claimed in claim 1 is characterized in that: the cross section of said annular groove is trapezoidal, V-type, U type or arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120253633 CN202259547U (en) | 2011-07-18 | 2011-07-18 | Button-type lithium battery with novel negative electrode cap set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120253633 CN202259547U (en) | 2011-07-18 | 2011-07-18 | Button-type lithium battery with novel negative electrode cap set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259547U true CN202259547U (en) | 2012-05-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120253633 Expired - Lifetime CN202259547U (en) | 2011-07-18 | 2011-07-18 | Button-type lithium battery with novel negative electrode cap set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202259547U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244514A (en) * | 2015-11-09 | 2016-01-13 | 宜昌力佳科技有限公司 | Button cell battery with electrolyte solution bath formed in electrode solid-liquid interface |
| CN108091785A (en) * | 2017-12-12 | 2018-05-29 | 缪汉平 | CR series lithium button cell battery cathode cover cap metal fittings structures |
-
2011
- 2011-07-18 CN CN 201120253633 patent/CN202259547U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244514A (en) * | 2015-11-09 | 2016-01-13 | 宜昌力佳科技有限公司 | Button cell battery with electrolyte solution bath formed in electrode solid-liquid interface |
| CN108091785A (en) * | 2017-12-12 | 2018-05-29 | 缪汉平 | CR series lithium button cell battery cathode cover cap metal fittings structures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: WANG JIAN Effective date: 20120711 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120711 Address after: 180 No. 443000 Hubei city of Yichang province located in Xiaoting District Road Patentee after: Yichang Lijia Technology Co., Ltd. Address before: 180 No. 443000 Hubei city of Yichang province located in Xiaoting District Road Co-patentee before: Wang Jian Patentee before: Yichang Lijia Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |