CN2508408Y - High-capacity liquid leak preventing button Li-Mn cell - Google Patents
High-capacity liquid leak preventing button Li-Mn cell Download PDFInfo
- Publication number
- CN2508408Y CN2508408Y CN 01258182 CN01258182U CN2508408Y CN 2508408 Y CN2508408 Y CN 2508408Y CN 01258182 CN01258182 CN 01258182 CN 01258182 U CN01258182 U CN 01258182U CN 2508408 Y CN2508408 Y CN 2508408Y
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- China
- Prior art keywords
- battery
- ring
- bracing frame
- wall
- supporting frame
- 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 - Fee Related
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- Y02E60/12—
Abstract
The utility model relates to a high capacity electrolyte leak proof lithium manganese button type battery. The basic structure is the same with the existing button type battery. The utility model is characterized in that a ring-shaped supporting frame distributed with liquid flowing holes on a frame wall is arranged in a positive pole casing, the inner concave wall of the ring-shaped supporting frame and the cathode casing wall form a ring-shaped electric hydraulic, and the ring-shaped outer wall of the ring-shaped supporting frame forms a dished pocket for a positive pole block embedding, a negative pole cover and the installing end of an insulating plastic ring are supported on the supporting frame. The design of the utility model is scientific, and the structure is rational. The rational structure can reduce the leak of the electrolyte in the battery and improve the storage performance of the battery; and can eliminate the sudden electroless phenomena during the battery discharging process; when the internal air pressure of battery increases sharply during the battery charging, over discharging or short out process, the ring-shaped supporting frame can firstly bear the pressure deformation and buff the air pressure force, thus the effect of battery protecting is realized, and the security of the battery application is greatly improved.
Description
Technical field
The utility model relates to the architecture advances of li-Mn button cell, especially a kind of high power capacity, anti-leakage li-Mn button cell.
Background technology
At present, the structure of the li-Mn button cell of selling on the market is made up of negative cover that is provided with the lithium sheet and the anode cover that is provided with anodal piece as shown in Figure 1, is provided with barrier film between anodal piece and the lithium sheet, and the position that is fitted to each other of negative cover and anode cover is provided with the ambroin circle.The button cell of this structure has easy to process, low cost and other advantages.But, because when the battery assembling is sealed, form one by press-fit between anode cover and the negative cover, there is bigger pressure at the anode cover edge to the ambroin circle of its junction, the distortion of ambroin circle is bigger, be affected thereby cause negative cover to contact compactness with insulation between the plastic tube, electric liquid is easy to overflow between ambroin circle and negative cover.There is bigger pressure at same because anode cover edge to the ambroin circle of its junction, causes the loose contact of ambroin circle bottom and sidepiece and anode cover corresponding site, electric liquid easily by the ambroin circle with overflowing the leakage of formation electric current between the anode cover.In addition, the button cell of this structure is owing to before its discharge, leave the space between anodal piece periphery and the ambroin circle, and this space is used for exhaust when being used for preserving electrolyte and assembled group packed battery.Along with discharge begins and progressively carries out, the continuous consumption of battery cathode lithium sheet material, thickness is more and more littler, anodal piece then constantly expands, capture at leisure and the ambroin circle between the space.Arrived the discharge middle and later periods, the anodal piece in back that expands has captured whole spaces, and during negative material consumption at least 1/3, distance is drawn back between the both positive and negative polarity, and inside battery forms open-circuit condition basically, and cell voltage sharply descends suddenly, can cause battery to scrap.Secondly because the common air-tightness of ambroin circle is relatively poor, in battery storage and discharge process, electric liquid can evaporate by the ambroin circle with gas form, can influence the preservation of electric weight undoubtedly, and then influences the shelf characteric of battery.This shows that the version of battery parts can produce material impact to the performance of battery.Anti-leakage is poor because the unreasonable and science of structure of this class button cell, the button cell of existing structure exist, capacity utilizes defectives such as low, that storage property is not good.
Summary of the invention
The purpose of this utility model is the deficiency that exists on the above-mentioned li-Mn button cell structure, and the good high power capacity of a kind of anti-leakage performance and shelf characteric, anti-leakage li-Mn button cell are provided.
The utility model high power capacity, anti-leakage li-Mn button cell, comprise: the negative cover that is provided with the lithium sheet, be provided with the anode cover of anodal piece, be arranged on the barrier film between anodal piece and the lithium sheet, negative cover and anode cover be fitted to each other the ambroin circle that the position is provided with, it is characterized in that: be provided with an annular bracing frame in the anode cover, even cloth fluid hole on the annular bracing frame wall, the inner concave wall of this annular bracing frame and anodal inner wall form an annular electro liquid chamber, the annular outer wall of annular bracing frame forms a pit for anodal piece embedding, and the assembling end of negative cover and ambroin circle is butted on high power capacity, on the anti-leakage li-Mn button cell bracing frame.
Described annular bracing frame can be that stainless steel material or wood materials are made.
The design principle of the utility model high power capacity, anti-leakage li-Mn button cell is: utilize the annular bracing frame that is arranged in the battery, electrolyte more than 30% in the battery is stored in the space between annular bracing frame and housing, form an electric liquid chamber, the electric liquid of storage in electric liquid chamber, can can not improve the anti-leakage performance of battery greatly because of the isolation seepage that cooperates pressurized to cause between negative cover and anode cover.Because the annular bracing frame placed restrictions on anodal piece lateral expansion in the battery discharge procedure, anodal piece can only longitudinal dilatation, has stopped battery and produce the phenomenon that seriously separates between anodal piece, negative pole lithium sheet in discharge process, has eliminated inside battery open circuit problem.The continuous supply of electric liquid can guarantee that discharge deeply in the discharge process simultaneously.
The utility model high power capacity, anti-leakage li-Mn button cell design science, rational in infrastructure.Its rational structure can reduce the seepage of battery electrolyte inside, improves the shelf characteric of battery; That can stop to occur in the battery discharge procedure have electrical phenomena suddenly; When battery when air pressure inside increases suddenly in processes such as charging, overdischarge, short circuit, the annular bracing frame will at first bear pressure distortion, and the annular bracing frame can cushion pressure by air pressure, reaches the effect of protection battery, has improved the fail safe that battery uses greatly.
The concrete structure of the utility model leakproof li-Mn button cell is provided in detail by the following drawings and embodiment.
Description of drawings
Fig. 1 is existing li-Mn button cell structural representation;
Fig. 2 is high power capacity, anti-leakage li-Mn button cell structural representation;
Fig. 3 is the annular bracing frame front view of high power capacity shown in Figure 2, anti-leakage li-Mn button cell;
Fig. 4 is an annular bracing frame A-A shown in Figure 3 position cutaway view.
Embodiment
Can be clear that from Fig. 2, high power capacity, the basic structure of anti-leakage li-Mn button cell is identical with existing li-Mn button cell, comprise: the negative cover 2 that is provided with lithium sheet 1, be provided with the anode cover 4 of anodal piece 3, be arranged on the barrier film 5 between anodal piece 3 and the lithium sheet 1, the ambroin circle 6 that the position is provided with that is fitted to each other of negative cover 2 and anode cover 4, be provided with an annular bracing frame 7 in the anode cover 4, described annular bracing frame 7 cross sections are shape (seeing Fig. 3 and Fig. 4), the annular of annular bracing frame 7 face the wall and meditate 9 and annular sidewall 10 on the even fluid hole 11 that is furnished with, annular bracing frame 7 is arranged on anode cover 4 inner bottom parts, constitute an annular electro liquid chamber 8 with anode cover 4 walls, form a pit for anodal piece 3 embeddings simultaneously, the assembling end of assembling back negative cover 2 and ambroin circle 6 is butted on the annular of annular bracing frame 7 and faces the wall and meditates 9.
Described annular bracing frame 7 can be that stainless steel material or particular wood species material are made.
Claims (3)
1, a kind of high power capacity, anti-leakage li-Mn button cell, comprise: the negative cover that is provided with the lithium sheet, be provided with the anode cover of anodal piece, be arranged on the barrier film between anodal piece and the lithium sheet, negative cover and anode cover be fitted to each other the ambroin circle that the position is provided with, it is characterized in that: be provided with an annular bracing frame in the anode cover, even cloth fluid hole on the annular bracing frame wall, the inner concave wall of this annular bracing frame and anodal inner wall form an annular electro liquid chamber, the annular outer wall of annular bracing frame forms a pit for anodal piece embedding, and the assembling end of negative cover and ambroin circle is butted on high power capacity, on the anti-leakage li-Mn button cell bracing frame.
2, high power capacity according to claim 1, anti-leakage li-Mn button cell, it is characterized in that: annular bracing frame (7) can be that stainless steel material or wood materials are made.
3, high power capacity according to claim 1 and 2, anti-leakage li-Mn button cell, it is characterized in that: annular bracing frame (7) cross section is the shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01258182 CN2508408Y (en) | 2001-11-20 | 2001-11-20 | High-capacity liquid leak preventing button Li-Mn cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01258182 CN2508408Y (en) | 2001-11-20 | 2001-11-20 | High-capacity liquid leak preventing button Li-Mn cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2508408Y true CN2508408Y (en) | 2002-08-28 |
Family
ID=33666802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01258182 Expired - Fee Related CN2508408Y (en) | 2001-11-20 | 2001-11-20 | High-capacity liquid leak preventing button Li-Mn cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2508408Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147075A (en) * | 2018-02-09 | 2018-06-12 | 山东信湖新能源科技有限公司 | A kind of auto-dishing device |
-
2001
- 2001-11-20 CN CN 01258182 patent/CN2508408Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147075A (en) * | 2018-02-09 | 2018-06-12 | 山东信湖新能源科技有限公司 | A kind of auto-dishing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |