CN202259559U - Polymer lithium battery - Google Patents
Polymer lithium battery Download PDFInfo
- Publication number
- CN202259559U CN202259559U CN2011203386689U CN201120338668U CN202259559U CN 202259559 U CN202259559 U CN 202259559U CN 2011203386689 U CN2011203386689 U CN 2011203386689U CN 201120338668 U CN201120338668 U CN 201120338668U CN 202259559 U CN202259559 U CN 202259559U
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- China
- Prior art keywords
- web
- lithium battery
- electric core
- poly
- circuit board
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- 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
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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
Abstract
The utility model relates to the technical field of lithium batteries, in particular to a polymer battery, which comprises a battery cell and a shell. A circuit board and a front cover are sequentially embedded at the front end of the battery cell, and a rear cover is disposed at the rear end of the battery cell. The circuit board is electrically connected with the battery cell through a pole lug, and the pole lug which is led out of the circuit board is arranged on the front cover. Metal thin strips are disposed on both sides of the battery cell, and both ends of each metal thin strip are respectively connected with the front cover and the rear cover. Compared with the prior art, metal thin sheets are arranged on both sides of the battery cell of the polymer lithium battery to replace the packaging mode of peripheral through frames, space for packaging is effectively reduced, energy density of the polymer lithium battery lithium ion battery is improved, and besides, safety performance of the battery can be effectively improved due to the fact that the metal shell has good abrasion resistance and impact resistance.
Description
Technical field:
The utility model relates to technical field of lithium batteries, is specifically related to a kind of poly-lithium battery.
Background technology:
Along with the functional diversities, miniaturization and the use universalness that move portable equipment, people have proposed increasingly high requirement for miniaturization, energy density and the security performance as these device power supply (DPS)s.The lithium ion polymer lithium battery has been widely used as the power supply of these equipment as a kind of environmental protection new forms of energy with high-energy-density and good electrical properties and security performance.But; What the shell mechanism of commercial polymer Li-ion battery adopted is to lead to the plastic cement packaged type of frame all around, owing to receive the injecting condition restriction, it is bigger to take up room; Cause the energy density of polymer Li-ion battery to reduce, limited the further application of polymer Li-ion battery.
In addition, the plastic shell of logical all around frame resistance to wears relatively poor with impact resistance, when battery receives external impact or sharp impacts, might cause the damage of battery, even danger such as combustion explosion takes place.
In view of this, necessaryly provide a kind of and can reduce cell package shell occupation space, have higher energy density and higher-security can poly-lithium battery.
The utility model content:
The purpose of the utility model is: to the deficiency of prior art existence, and a kind of cell package shell occupation space that can reduce is provided, has the poly-lithium battery of higher energy density and higher-security ability.
To achieve these goals, the utility model adopts following technical scheme:
A kind of poly-lithium battery; Comprise electric core and shell, electric core front end is embedded with circuit board and protecgulum successively, and electric core rear end is provided with bonnet; Circuit board is electrically connected with electric core through lug; The lug of drawing from circuit board is embedded on protecgulum, and electric core both sides are provided with web, and the two ends of web are connected with bonnet with protecgulum respectively.
As a kind of improvement of the utility model poly-lithium battery, be covered with the preceding jack that cooperates clamping with web before described, be covered with the back jack that cooperates clamping with web after described.
A kind of improvement as the utility model poly-lithium battery; The two ends of described web are respectively equipped with aperture; Be covered with before described with web on aperture cooperate the little round platform of clamping; Be covered with after described with web on aperture cooperate the little round platform of clamping, through the cooperation of aperture and little round platform, can effectively web be connected with the protecgulum bonnet.
As a kind of improvement of the utility model poly-lithium battery, the two ends of web are respectively equipped with groove, be covered with before described with web on the tongue of groove fit, be covered with after described with web on the tongue of groove fit.
As a kind of improvement of the utility model poly-lithium battery, the gap between web and the electric core side is filled with filling glue.
As a kind of improvement of the utility model poly-lithium battery, filling glue between web and the electric core side is to realize through manual mode of playing glue.
As a kind of improvement of the utility model poly-lithium battery, said web is Copper Foil or aluminium foil.
As a kind of improvement of the utility model poly-lithium battery, be filled with filling glue between bonnet and the electric core.So can firm better electric core and bonnet between connection.
As a kind of improvement of the utility model poly-lithium battery, glued joint through double faced adhesive tape between bonnet and the electric core.
As a kind of improvement of the utility model poly-lithium battery, be filled with filling glue between circuit board and the electric core.So can firm better electric core and circuit board between connection.
Relative prior art; The utility model is employed in the electric core both sides of polymer Li-ion battery and installs the packaged type that sheet metal replaces leading to frame all around; Not only can reduce to encapsulate used space effectively; Promote the energy density of polymer Li-ion battery, and because metal shell has wearing and tearing seen preferably and impact resistance, thereby the security performance of battery can be improved effectively.
Description of drawings:
Fig. 1 is the decomposing schematic representation of the utility model;
Fig. 2 is the structural representation of the utility model.
Embodiment:
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Please with reference to Fig. 1; The positive and negative lug 6 of electric core 3 is welded on the pad of circuit board 2; Then circuit board 2 is embedded into 1 li of protecgulum, the web 5 with dual-side is embedded into protecgulum 1 and bonnet 4 respectively then, between the gap of circuit board 2 and electric core 3, utilizes and fills the glue filling; Between bonnet and electric core, also fill (perhaps glueing joint) with double faced adhesive tape with filling glue.Then, between web and electric core, fill glue, thereby the position of the thin bar of further robust metal makes web smooth, thereby obtains poly-lithium battery as shown in Figure 2.Need to prove that in order to reduce cost and to simplify packaging technology, the filling glue of above-mentioned several position adopts manual mode of playing glue as far as possible, avoids adopting low temperature injection moulding mode.
Embodiment
Getting the model for preparing is 454261 (the thick 4.5mm of being of electric core; Wide is 42mm; Long be 61mm) naked electric core, the positive and negative lug 6 with naked electric core is welded on the pad of circuit board 2 earlier, then circuit board 2 is embedded into 1 li of protecgulum; Again two thin bars of the aluminium with naked electric core 3 sides couplings or the thin bar 5 of copper (wide be 4.5mm) are snapped in the protecgulum 1 that is provided with the aperture that is complementary with thin bar of aluminium or the thin bar 5 of copper in advance and the bonnet 4; Between circuit board 2 and naked electric core 3, fill glue then, between bonnet 4 and naked electric core 3, fill glue, between web 5 and naked electric core 3, fill glue.
In addition, in order to utilize the useful space as far as possible, aspect battery structure design and assembling, the parts height utilizes electric core closedtop space to deposit as far as possible on circuit board 2 and the circuit board 2, reduces the size of cell package at length direction.
Comparative Examples
Get the model for preparing and the be 454261 naked electric core of (electric core is thick to be 4.5mm, and wide be 42mm, long be 61mm) adopts traditional frame mode of leading to outside naked electric core, shell to be set all around.
With respect to Comparative Examples, the polymer Li-ion battery of embodiment gained is saved about 0.7mm on width, and under the same dimensional space, energy density promotes about 2%.
According to the announcement and the instruction of above-mentioned specification, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to is in the protection range of the claim that also should fall into the utility model to some modifications and the change of the utility model.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the utility model is not constituted any restriction.
Claims (10)
1. poly-lithium battery; Comprise electric core and shell, electric core front end is embedded with circuit board and protecgulum successively, and electric core rear end is provided with bonnet; Circuit board is electrically connected with electric core through lug; The lug of drawing from circuit board is embedded on protecgulum, it is characterized in that: electric core both sides are provided with web, and the two ends of web are connected with bonnet with protecgulum respectively.
2. poly-lithium battery according to claim 1 is characterized in that: be covered with the preceding jack that cooperates clamping with chaff before described, be covered with the back jack that cooperates clamping with chaff after described.
3. poly-lithium battery according to claim 1; It is characterized in that: the two ends of described web are respectively equipped with aperture; Be covered with before described with web on aperture cooperate the little round platform of clamping, be covered with after described with web on aperture cooperate the little round platform of clamping.
4. poly-lithium battery according to claim 1; It is characterized in that: the two ends of web are respectively equipped with groove; Be covered with before described with web on the tongue of groove fit, be covered with after described with web on the tongue of groove fit.
5. poly-lithium battery according to claim 1 is characterized in that: the gap between web and the electric core side is filled with filling glue.
6. poly-lithium battery according to claim 5 is characterized in that: filling glue between web and the electric core side is to realize through manual mode of playing glue.
7. poly-lithium battery according to claim 1 is characterized in that: said web is Copper Foil or aluminium foil.
8. poly-lithium battery according to claim 1 is characterized in that: be filled with filling glue between bonnet and the electric core.
9. poly-lithium battery according to claim 1 is characterized in that: glued joint through double faced adhesive tape between bonnet and the electric core.
10. poly-lithium battery according to claim 1 is characterized in that: be filled with filling glue between circuit board and the electric core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203386689U CN202259559U (en) | 2011-09-05 | 2011-09-05 | Polymer lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203386689U CN202259559U (en) | 2011-09-05 | 2011-09-05 | Polymer lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259559U true CN202259559U (en) | 2012-05-30 |
Family
ID=46120754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203386689U Expired - Lifetime CN202259559U (en) | 2011-09-05 | 2011-09-05 | Polymer lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202259559U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931368A (en) * | 2012-10-23 | 2013-02-13 | 东莞新能源科技有限公司 | Widening structure of flexible package lithium ion cell and manufacturing method of widening structure |
| CN112886104A (en) * | 2021-02-10 | 2021-06-01 | 东莞新能德科技有限公司 | Battery and electric equipment |
-
2011
- 2011-09-05 CN CN2011203386689U patent/CN202259559U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931368A (en) * | 2012-10-23 | 2013-02-13 | 东莞新能源科技有限公司 | Widening structure of flexible package lithium ion cell and manufacturing method of widening structure |
| CN102931368B (en) * | 2012-10-23 | 2016-06-22 | 东莞新能源科技有限公司 | A kind of flexible packing lithium ion electric core widening structure and preparation method thereof |
| CN112886104A (en) * | 2021-02-10 | 2021-06-01 | 东莞新能德科技有限公司 | Battery and electric equipment |
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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: 20120530 |
|
| CX01 | Expiry of patent term |