CN203850371U - Micro polymer lithium ion square battery - Google Patents
Micro polymer lithium ion square battery Download PDFInfo
- Publication number
- CN203850371U CN203850371U CN201420160042.7U CN201420160042U CN203850371U CN 203850371 U CN203850371 U CN 203850371U CN 201420160042 U CN201420160042 U CN 201420160042U CN 203850371 U CN203850371 U CN 203850371U
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- China
- Prior art keywords
- battery
- positive
- negative
- lithium ion
- polymer lithium
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- 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
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- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a micro polymer lithium ion square battery. The micro polymer lithium ion square battery comprises a battery shell, wherein a battery cell is arranged in the battery shell, one side of the end part of the battery cell is connected with a positive lead and a negative lead, the positive lead and the negative lead are respectively coated with insulation adhesive from the connection root part and folded and superimposed to form an insulation sealing layer, and the protruded positive lead and the negative lead are folded upwards to form a positive tab and a negative tab. One side of the end part of the battery cell is externally connected with the positive and negative leads, the positive and negative leads are coated with the insulation adhesive to form the insulation adhesive layer, so that the difficulty that the battery pole piece is difficult to produce due to the small area can be solved; moreover, the end part seal edge of the battery shell is retraced towards the battery cell along the intersection part of the battery cell and the end part seal edge, so that the internal space of the battery is greatly increased, the capacity is increased, the problem that the positive tab and the negative tab of the micro polymer battery are unlikely to arrange can be solved, the length dimension of the polymer lithium ion battery can be reduced, and a smaller square battery can be realized.
Description
Technical field
The utility model relates to a kind of lithium ion battery, more specifically says a kind of micro-polymer lithium ion rectangular cell.
Background technology
Lithium ion battery has the advantages such as voltage is high, electricity capacity large, long circulation life, memory-less effect, quality is light, working range is wide, as mobile phone, digital camera, video camera, notebook computer, mobile DVD, MP4 etc. are used widely, therefore more and more higher to the performance requirement of lithium ion battery on portable type electronic product.The closedtop limit of current polymer Li-ion battery is unlimited structure, occupied the length space of 2.5-5mm, while doing larger-size model, can ignore its effect length, but be less than 11mm or more hour have following two problems when power supply usage space (in the longitudinal direction):
1, by current polymer battery design, battery pole piece width is to 5mm and less, and manufacture difficulty very greatly maybe cannot be made;
2, the position on closedtop limit takes up space more excessively, and the energy that battery core is made cannot meet instructions for use.
Utility model content
The purpose of this utility model is the problems such as low for existing minicell capacity, the too small manufacture difficulty of battery pole piece is large, and a kind of have edge-folding mechanism, micro-polymer lithium ion rectangular cell that battery size is less are provided.
The purpose of this utility model can realize by following technical proposal: a kind of micro-polymer lithium ion rectangular cell, comprise battery container, described battery container inside is provided with battery battery core, described battery battery core end one side is connected with positive and negative lead wires outward, from connecting root, on described positive and negative lead wires, be coated with insulating cement, through the stacking formation insulated enclosure of flanging layer, outstanding described positive and negative lead wires is outside through the positive and negative lug of upward folded formation.
By being connected with positive and negative lead wires outward, apply insulating cement in the above and form insulation glue-line simultaneously, can solve the large difficult problem of battery pole piece making too small and that cause, and the end edge sealing of battery container is turned back to battery battery core direction along the interface portion of battery battery core and end edge sealing, the length dimension that reduces polymer Li-ion battery, can realize more small rectangular cell.
Further, described positive and negative lug is formed through flanging is stacking from described insulated enclosure layer ledge by positive and negative lead wires, and the flanging portion of described positive and negative lug is coated with tab.
Particularly, battery battery core comprises one deck barrier film between positive plate, negative plate, positive plate and negative plate and is wrapped in outer field one deck aluminum plastic film.
As preferably, battery battery core is square, is stacked successively to reel to form by anode pole piece, barrier film, cathode pole piece, aluminum plastic film, and positive plate connects positive wire, and negative plate connects negative wire.
The utility model has the following advantages and beneficial effect compared to existing technology:
Described battery battery core end one side is connected with positive and negative lead wires outward, apply insulating cement in the above and form insulation glue-line simultaneously, can solve the large difficult problem of battery pole piece making too small and that cause, and the end edge sealing of battery container is turned back to battery battery core direction along the interface portion of battery battery core and end edge sealing, greatly increased inside battery space, increased capacity, having solved micro-polymer battery plus-negative plate ear is difficult for arranging, the length dimension that reduces polymer Li-ion battery, can realize more small rectangular cell.
Accompanying drawing explanation
Fig. 1 is the outward appearance front elevation of a kind of micro-polymer lithium ion rectangular cell of the present utility model.
Fig. 2 is the profile of battery of the present utility model.
Fig. 3 is the partial enlarged drawing of the battery end A in Fig. 2.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment: as shown in Figure 1 and Figure 2, a kind of micro-polymer lithium ion rectangular cell, comprise battery container 1, described battery container 1 inside is provided with battery battery core 2, described battery battery core 2 end one sides are connected with positive and negative lead wires outward, from connecting root, on described positive and negative lead wires, are coated with insulating cement, through the stacking formation insulated enclosure of flanging layer 4, outstanding described positive and negative lead wires is outside through the positive and negative lug 3-1 of upward folded formation, 3-2.
Particularly, battery battery core 2 comprises one deck barrier film 22 between positive plate 23, negative plate 21, positive plate and negative plate and is wrapped in outer field one deck aluminum plastic film 24.
As preferably, battery battery core is square, is stacked successively to reel to form by negative plate 21, barrier film 22, positive plate 23, aluminum plastic film 24, and positive plate 23 connects positive wires, and negative plate 21 connects negative wires.
As shown in Figure 1,3, described positive and negative lug 3-1,3-2 are formed through flanging is stacking from described insulated enclosure layer 4 ledge by positive and negative lead wires, and the flanging portion of described positive and negative lug 3-1,3-2 is coated with tab 5.
By being connected with positive and negative lead wires outward, apply insulating cement in the above and form insulation glue-line 4 simultaneously, can solve the large difficult problem of battery pole piece making too small and that cause, and the end edge sealing of battery container 1 is turned back to battery battery core 2 directions along the interface portion of battery battery core and end edge sealing, the length dimension that reduces polymer Li-ion battery, can realize more small rectangular cell.
Certainly; above-mentioned explanation is not limitation of the utility model; the utility model is also not limited only to above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also belong to protection range of the present utility model.
Claims (4)
1. a micro-polymer lithium ion rectangular cell, comprise battery container, described battery container inside is provided with battery battery core, it is characterized in that: described battery battery core end one side is connected with positive and negative lead wires outward, from connecting root, on described positive and negative lead wires, be coated with insulating cement, through the stacking formation insulated enclosure of flanging layer, outstanding described positive and negative lead wires is outside through the positive and negative lug of upward folded formation.
2. according to claim a kind of micro-polymer lithium ion rectangular cell, is characterized in that: described positive and negative lug is formed through flanging is stacking from described insulated enclosure layer ledge by positive and negative lead wires, and the flanging portion of described positive and negative lug is coated with tab.
3. according to claim a kind of micro-polymer lithium ion rectangular cell, is characterized in that: battery battery core comprises one deck barrier film between positive plate, negative plate, positive plate and negative plate and is wrapped in outer field one deck aluminum plastic film.
4. according to claim a kind of micro-polymer lithium ion rectangular cell, it is characterized in that: battery battery core is square, by anode pole piece, barrier film, cathode pole piece, aluminum plastic film, stack successively coiling and form, positive plate connects positive wire, and negative plate connects negative wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160042.7U CN203850371U (en) | 2014-04-03 | 2014-04-03 | Micro polymer lithium ion square battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420160042.7U CN203850371U (en) | 2014-04-03 | 2014-04-03 | Micro polymer lithium ion square battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850371U true CN203850371U (en) | 2014-09-24 |
Family
ID=51563349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420160042.7U Expired - Fee Related CN203850371U (en) | 2014-04-03 | 2014-04-03 | Micro polymer lithium ion square battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850371U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888186A (en) * | 2019-03-06 | 2019-06-14 | 广州丰江电池新技术股份有限公司 | The pole piece of thin lithium ion battery assembles localization method |
| CN112751109A (en) * | 2019-10-29 | 2021-05-04 | Sk新技术株式会社 | Pouch type secondary battery |
-
2014
- 2014-04-03 CN CN201420160042.7U patent/CN203850371U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888186A (en) * | 2019-03-06 | 2019-06-14 | 广州丰江电池新技术股份有限公司 | The pole piece of thin lithium ion battery assembles localization method |
| CN112751109A (en) * | 2019-10-29 | 2021-05-04 | Sk新技术株式会社 | Pouch type secondary battery |
| CN112751109B (en) * | 2019-10-29 | 2023-11-07 | Sk新能源株式会社 | Pouch type secondary battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20170403 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |