CN209312887U - Rate lithium manganese rectangular cell structure - Google Patents
Rate lithium manganese rectangular cell structure Download PDFInfo
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- CN209312887U CN209312887U CN201822255256.3U CN201822255256U CN209312887U CN 209312887 U CN209312887 U CN 209312887U CN 201822255256 U CN201822255256 U CN 201822255256U CN 209312887 U CN209312887 U CN 209312887U
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- negative electrode
- collector
- composite membrane
- positive plate
- plastic composite
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Abstract
A kind of rate lithium manganese rectangular cell structure of the utility model, is related to a kind of battery structure.It includes the square electric cell positioned at the aluminum-plastic composite membrane of outer layer and positioned at internal layer, and square electric cell is wound by positive plate, negative electrode tab and diaphragm by rectangular volume needle, and diaphragm is between positive plate and negative electrode tab；Positive plate includes collector, anode ear and film, and anode ear is located at the middle part of collector, and the top of anode ear is located at outside aluminum-plastic composite membrane, and collector is between two panels film；Negative electrode tab includes lithium band and negative electrode lug, and being in tilted layout on lithium band has a copper mesh, and negative electrode lug is located in the middle part of lithium band, and the top of negative electrode lug is located at outside aluminum-plastic composite membrane.The utility model improves the utilization rate of anode, and the discharge current of pole piece each section is more balanced, and catchment effect is more obvious, and multiplying power discharging ability is enhanced.
Description
Technical field
The utility model relates to a kind of battery structures, more specifically say it is a kind of rate lithium manganese rectangular cell structure.
Background technique
Lithium/manganese dioxide battery is the disposable battery that current production rate is maximum, purposes is most wide, is widely used to COMS note
Recall the fields such as backup, RTC clock power supply, intelligent meter, but due to the difference of battery use condition and environment, greatly limits
The output of lithium/manganese dioxide battery service life and capacity.
Traditional lithium-manganese cell structure is all that positive and negative anodes tab is located at pole piece head, especially rectangular cell, finally by
The mode of machinery winding is rolled into battery core.Many experiments show when battery is in high magnification or deep discharge have in the presence of negative
The case where pole lithium band " putting disconnected ", makes lithium/manganese dioxide battery failure.
Therefore, a kind of rate lithium manganese rectangular cell structure is researched and developed to be necessary.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned background technology, and provide a kind of rate lithium manganese
Rectangular cell structure.
To achieve the goals above, the technical solution of the utility model are as follows: rate lithium manganese rectangular cell structure, feature
Be: including being located at the aluminum-plastic composite membrane of outer layer and positioned at the square electric cell of internal layer, the square electric cell is by positive plate, negative electrode tab
It is wound with diaphragm by rectangular volume needle, diaphragm is between positive plate and negative electrode tab；
The positive plate includes collector, anode ear and film, and anode ear is located at the middle part of collector, the top position of anode ear
In outside aluminum-plastic composite membrane, collector is between two panels film；
The negative electrode tab includes lithium band and negative electrode lug, and being in tilted layout on lithium band has a copper mesh, and negative electrode lug is located in lithium band
The top in portion, negative electrode lug is located at outside aluminum-plastic composite membrane.
In the above-mentioned technical solutions, the negative electrode lug is fixed on lithium band by High temperature-resistanadhesive adhesive tape.
In the above-mentioned technical solutions, two films and the collector between two films roll together, film rolling
Part forms positive mix afterwards, exposes collector from the intermediate positive mix of removing of film by the clear powder technique of laser, then will be positive
Ear is welded in the middle part of collector by ultrasonic spot welding.
In the above-mentioned technical solutions, the collector is aluminium net or aluminium foil.
Compared with prior art, the beneficial effects of the utility model are as follows:
(1) the utility model arbitrarily can draw anode ear end from positive plate position, from the beginning compared to traditional tab
Portion is drawn, on the one hand the utilization rate of anode can be improved in the utility model, on the other hand can be very good control tab spacing, can
To meet requirement of the different power consuming devices to tab position；
(2) the utility model anode ear and negative electrode lug are drawn from centre completely, so that the discharge current of pole piece each section is more
The equilibrium added, catchment effect is more obvious, the enhancing of multiplying power discharging ability.
(3) it is covered with copper mesh on the utility model lithium band, on the one hand can plays the role of afflux, on the other hand compared to copper
Foil, lithium band utilization rate is higher, therefore the output of capacity is also bigger；And copper mesh inclination arrangement can avoid lithium band on lithium band and roll up
Around when copper mesh be overlapped, the thickness of square electric cell can also be effectively reduced.
Detailed description of the invention
Fig. 1 is the utility model positive plate structural schematic diagram.
Fig. 2 is the utility model negative plate structure schematic diagram.
Fig. 3 is the structural schematic diagram of the utility model positive plate, negative electrode tab and diaphragm when winding on rectangular volume needle.
Fig. 4 is the structural schematic diagram that the utility model square electric cell is put into aluminum-plastic composite membrane.
Fig. 5 is the structural schematic diagram of the utility model.
In figure, 1- aluminum-plastic composite membrane, 2- square electric cell, 3- positive plate, 31- collector, 32- anode ear, 33- film, 4- is negative
Pole piece, 41- lithium band, 411- copper mesh, 42- negative electrode lug, 421 high temperature gummed tapes, 5- diaphragm, the rectangular volume needle of 6-.
Specific embodiment
The performance that according to the present invention will be described in detail below with reference to the accompanying drawings, but they are not constituted to the utility model
It limits, it is only for example.The advantages of making the utility model by explanation simultaneously, will become clearer and be readily appreciated that.
Refering to known to attached drawing: rate lithium manganese rectangular cell structure, it is characterised in that: including being located at the plastic-aluminum combined of outer layer
Film 1 and square electric cell 2 positioned at internal layer, the square electric cell 2 pass through rectangular volume needle volume 6 by positive plate 3, negative electrode tab 4 and diaphragm 5
Around forming, diaphragm 5 is between positive plate 3 and negative electrode tab 4；
The positive plate 3 includes collector 31, anode ear 32 and film 33, and anode ear 32 is located at the middle part of collector 31, just
The top of tab 32 is located at outside aluminum-plastic composite membrane 1, and collector 31 is between two panels film 33；
The negative electrode tab 4 includes lithium band 41 and negative electrode lug 42, and inclination is disposed with a copper mesh 411, negative electrode lug on lithium band 41
42 are located at 41 middle part of lithium band, and the top of negative electrode lug 42 is located at outside aluminum-plastic composite membrane 1.
The negative electrode lug 42 is fixed on lithium band 41 by High temperature-resistanadhesive adhesive tape 421.
Two films 33 and the collector 31 between two films 33 roll together, and film 33 is partially formed after rolling
Positive mix exposes collector 31 from the intermediate positive mix of removing of film 33 by the clear powder technique of laser, then anode ear 32 is led to
Cross the middle part that ultrasonic spot welding is welded in collector 31.
The collector 31 is aluminium net or aluminium foil.
In actual use, the utility model can react away the impurity or micro-moisture of inside battery by pre-arcing,
Reduce the risk of battery inflatable.
The specific preparation process of rate lithium manganese rectangular cell structure is as follows: first by electrolytic manganese dioxide and other conductions
Agent, binder, solvent mixing, then by forming film 33 after rolling fibrosis, using aluminium net or aluminium foil as collector 31,
Together by two films 33 and the rolling of collector 31 between two films 33, by the clear powder technique of laser from the middle part of film 33
It removes positive mix and exposes collector 31, then anode ear 32 is welded in the middle part of collector 31 by ultrasonic spot welding, complete just
The pretreatment of pole piece 3；
Negative electrode lug 42 is sticked in 41 middle position of lithium band, and inclination is covered with the copper mesh of 3mm wide from 41 head of lithium band to tail portion, complete
At the pretreatment of negative electrode tab 4；
After positive plate 3 and negative electrode tab 4 pre-process, by 5 sets of diaphragm on rectangular volume needle 6, first will on rectangular volume needle 6
Negative electrode tab 4 winds one layer, is then placed in positive plate 3, until positive plate 3 and negative electrode tab 4 just finish up, completes square electric cell 2
Production；
The square electric cell 2 made is put into the aluminum-plastic composite membrane 1 in made hole, by outer layer aluminum-plastic composite membrane
1 top, one side side are packaged using heat-sealing welding machine, and from aluminum-plastic composite membrane 1, in addition unencapsulated one end injection is a certain amount of
Electrolyte, after vacuum is stood, packaged liquid injection port after liquid complete wetting to positive plate 3 to be electrolysed, will be remained using two envelope machine of vacuum
Remaining free electrolyte extraction completes the last packaging technology of aluminum-plastic composite membrane 1 after extracting free electrolyte out；
Finally battery is placed on pre-arcing frame, with the discharge current of 0.1C-0.5C, releases the 7%- of rated capacity
10%, it is finally completed the design and production of entire rate lithium manganese rectangular cell structure.
Other unaccounted parts belong to the prior art.
Claims (4)
1. rate lithium manganese rectangular cell structure, it is characterised in that: including being located at the aluminum-plastic composite membrane (1) of outer layer and being located at internal layer
Square electric cell (2), the square electric cell (2) by positive plate (3), negative electrode tab (4) and diaphragm (5) pass through rectangular volume needle (6) roll up
Around forming, diaphragm (5) is located between positive plate (3) and negative electrode tab (4)；
The positive plate (3) includes collector (31), anode ear (32) and film (33), and anode ear (32) is located at collector (31)
The top at middle part, anode ear (32) is located at aluminum-plastic composite membrane (1) outside, and collector (31) is located between two panels film (33)；
The negative electrode tab (4) includes lithium band (41) and negative electrode lug (42), and inclination is disposed with a copper mesh (411) on lithium band (41),
Negative electrode lug (42) is located in the middle part of lithium band (41), and the top of negative electrode lug (42) is located at aluminum-plastic composite membrane (1) outside.
2. rate lithium manganese rectangular cell structure according to claim 1, it is characterised in that: the negative electrode lug (42) passes through
High temperature-resistanadhesive adhesive tape (421) is fixed on lithium band (41).
3. rate lithium manganese rectangular cell structure according to claim 1 or 2, it is characterised in that: two films (33)
And collector (31) rolling being located between two films (33) is together, partially forms positive mix after film (33) rolling, passes through
The clear powder technique of laser exposes collector (31) from the intermediate positive mix of removing of film (33), then anode ear (32) are passed through ultrasonic point
It is welded in the middle part of collector (31).
4. rate lithium manganese rectangular cell structure according to claim 3, it is characterised in that: the collector (31) is aluminium
Net or aluminium foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822255256.3U CN209312887U (en) | 2018-12-29 | 2018-12-29 | Rate lithium manganese rectangular cell structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822255256.3U CN209312887U (en) | 2018-12-29 | 2018-12-29 | Rate lithium manganese rectangular cell structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209312887U true CN209312887U (en) | 2019-08-27 |
Family
ID=67679942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822255256.3U Active CN209312887U (en) | 2018-12-29 | 2018-12-29 | Rate lithium manganese rectangular cell structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209312887U (en) |
-
2018
- 2018-12-29 CN CN201822255256.3U patent/CN209312887U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430040 No.1, Taichung Avenue, Gaoqiao Industrial Park, Wujiashan Economic Development Zone, Wuhan City, Hubei Province Patentee after: Wuhan Haocheng lithium Technology Co.,Ltd. Address before: 430040 No.1, Taichung Avenue, Gaoqiao Industrial Park, Wujiashan Economic Development Zone, Wuhan City, Hubei Province Patentee before: WUHAN HAOCHENG ENERGY RESOURCES TECHNOLOGY Co.,Ltd. |