CN205194795U - Polymer lithium battery - Google Patents
Polymer lithium battery Download PDFInfo
- Publication number
- CN205194795U CN205194795U CN201520980683.1U CN201520980683U CN205194795U CN 205194795 U CN205194795 U CN 205194795U CN 201520980683 U CN201520980683 U CN 201520980683U CN 205194795 U CN205194795 U CN 205194795U
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- Prior art keywords
- cavity
- lithium
- lithium battery
- electrolyte
- polypropylene film
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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 discloses a polymer lithium battery, including aluminum plastic package film, the sour lithium positive pole of cobalt, graphite negative and polypropylene film, the aluminum plastic package film middle part is provided with the cavity, the sour lithium positive pole of cobalt, graphite negative and polypropylene film establish in the cavity, still be provided with electrolyte in the cavity, electrolyte comprises propylene carbonate and transesterification of ethylene carbonate, the sour lithium positive pole of cobalt, polypropylene film and graphite negative set up to outer from interior in proper order, the aluminum plastic package film top is provided with anodal ear and negative pole ear, anodal ear and negative pole ear are provided with the insulating piece with the aluminum plastic package film junction, anodal ear and the anodal electric connection of the sour lithium of cobalt, negative pole ear and graphite negative electric connection, this polymer lithium battery long service life, the security performance is good, and is small.
Description
Technical field
The utility model relates to a kind of technical field of lithium batteries, particularly relates to a kind of poly-lithium battery.
Background technology
According to the difference of lithium ion battery electrolyte used, lithium ion battery is divided into liquid lithium ionic cell and polymer Li-ion battery or plastic lithium-ion battery, polymer Li-ion battery positive and negative pole material used is all identical with liquid lithium ion, positive electrode is divided into cobalt acid lithium, LiMn2O4, ternary material and LiFePO 4 material, negative pole is graphite, battery operated principle is also basically identical, their main distinction is electrolytical difference, liquid lithium ionic cell uses liquid electrolyte, polymer Li-ion battery then replaces with solid polymer electrolyte, this polymer can be " dry state ", also can be " colloidal state ", current major part adopts gel-form solid polymer electrolyte.
Namely gel polymer electrolyte lithium-ion battery adds the additives such as plasticizer in solid polymer electrolyte, thus raising ionic conductivity, battery can be used at normal temperatures, owing to instead of liquid electrolyte with solid electrolyte, compared with liquid lithium ionic cell, polymer Li-ion battery has can the advantage such as thin type, arbitrary areaization and arbitrary shape, therefore with plastic-aluminum combined thin film fabrication battery case, thus can improve the specific capacity of whole battery; Polymer Li-ion battery can also adopt macromolecule to make positive electrode, its specific energy will improve more than 20% than current liquid lithium ionic cell, polymer Li-ion battery has miniaturization, slimming, light-weighted feature, and therefore, polymer battery can increase gradually at market share.
The principle of polymer Li-ion battery is identical with liquid lithium, the main distinction is that electrolyte is different from liquid lithium, the main structure of battery includes positive pole, negative pole and electrolyte three key elements, so-called polymer Li-ion battery says in these three kinds of major constituents, to have at least more than one or one to use macromolecular material as main battery system, and in current developed polymer Li-ion battery system, macromolecular material is mainly applied to positive pole and electrolyte, positive electrode comprises the inorganic compound that conducting high polymers thing or general lithium ion battery adopt, electrolyte then can use solid-state or colloidal condition macromolecule electrolyte, or organic electrolyte, general lithium-ion technology uses liquid or colloidal electrolyte, therefore need firm secondary package to hold flammable active component, this adds increased weight, also limit the flexibility of size in addition.
Current existing poly-lithium battery structural insulation effect is general, and useful life is not long, and security performance is poor.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of long service life, and security performance is good, the poly-lithium battery that volume is little.
For solving the problem, the utility model adopts following technical scheme: a kind of poly-lithium battery, comprise plastic-aluminum packaging film, lithium cobaltate cathode, graphite cathode and polypropylene film, cavity is provided with in the middle part of described plastic-aluminum packaging film, described lithium cobaltate cathode, graphite cathode and polypropylene film are located in cavity, also electrolyte is provided with in described cavity, described electrolyte is made up of propene carbonate and ethylene carbonate, described lithium cobaltate cathode, polypropylene film and graphite cathode are arranged successively from the inside to the outside, described plastic-aluminum packaging film top is provided with anode ear and negative electrode lug, described anode ear and negative electrode lug and plastic-aluminum packaging film junction are provided with insulating trip, described anode ear and lithium cobaltate cathode are electrically connected, described negative electrode lug and graphite cathode are electrically connected.
As preferably, described cavity thickness is less than 0.8cm, keeps volume little, conveniently installs.
As preferably, described insulating trip glues together with plastic-aluminum packaging film and is connected, holding structure good sealing effect.
As preferably, described insulating trip is Merlon insulating trip, and insulation effect is good, and stability is high.
As preferably, described polypropylene film is provided with two-layer, prevents both positive and negative polarity from occurring short circuit, corrosion-resistant, long service life.
The beneficial effects of the utility model are: the lithium cobaltate cathode of setting is easily processed, and chemical property is superior, and stability is high; The graphite cathode cost arranged is low, long service life; The polypropylene film arranged prevents both positive and negative polarity from occurring short circuit, corrosion-resistant, long service life, and electrolyte is made up of propene carbonate and ethylene carbonate and maintains easily, and security performance is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart of a kind of poly-lithium battery of the present utility model.
Embodiment
Consult shown in Fig. 1, a kind of poly-lithium battery, comprise plastic-aluminum packaging film 1, lithium cobaltate cathode 2, graphite cathode 3 and polypropylene film 4, cavity 5 is provided with in the middle part of described plastic-aluminum packaging film 1, described lithium cobaltate cathode 2, graphite cathode 3 and polypropylene film 4 are located in cavity 5, electrolyte 6 is also provided with in described cavity 5, described electrolyte 6 is made up of propene carbonate and ethylene carbonate, described lithium cobaltate cathode 2, polypropylene film 4 and graphite cathode 2 are arranged successively from the inside to the outside, described plastic-aluminum packaging film 1 top is provided with anode ear 7 and negative electrode lug 8, described anode ear 7 and negative electrode lug 8 are provided with insulating trip 9 with plastic-aluminum packaging film 1 junction, described anode ear 7 is electrically connected with lithium cobaltate cathode 2, described negative electrode lug 8 is electrically connected with graphite cathode 3.
Described cavity 5 thickness is less than 0.8cm.
Described insulating trip 9 glues together with plastic-aluminum packaging film 1 and is connected.
Described insulating trip 9 is Merlon insulating trip.
Described polypropylene film 4 is provided with two-layer.
The beneficial effects of the utility model are: the lithium cobaltate cathode of setting is easily processed, and chemical property is superior, and stability is high; The graphite cathode cost arranged is low, long service life; The polypropylene film arranged prevents both positive and negative polarity from occurring short circuit, corrosion-resistant, long service life, and electrolyte is made up of propene carbonate and ethylene carbonate and maintains easily, and security performance is high.
The above; be only embodiment of the present utility model; but protection range of the present utility model is not limited thereto; any change of expecting without creative work or replacement; all should be encompassed within protection range of the present utility model; therefore, the protection range that protection range of the present utility model should limit with claims is as the criterion.
Claims (5)
1. a poly-lithium battery, it is characterized in that: comprise plastic-aluminum packaging film, lithium cobaltate cathode, graphite cathode and polypropylene film, cavity is provided with in the middle part of described plastic-aluminum packaging film, described lithium cobaltate cathode, graphite cathode and polypropylene film are located in cavity, also electrolyte is provided with in described cavity, described electrolyte is made up of propene carbonate and ethylene carbonate, described lithium cobaltate cathode, polypropylene film and graphite cathode are arranged successively from the inside to the outside, described plastic-aluminum packaging film top is provided with anode ear and negative electrode lug, described anode ear and negative electrode lug and plastic-aluminum packaging film junction are provided with insulating trip, described anode ear and lithium cobaltate cathode are electrically connected, described negative electrode lug and graphite cathode are electrically connected.
2. poly-lithium battery according to claim 1, is characterized in that: described cavity thickness is less than 0.8cm.
3. poly-lithium battery according to claim 1, is characterized in that: described insulating trip glues together with plastic-aluminum packaging film and is connected.
4. poly-lithium battery according to claim 1, is characterized in that: described insulating trip is Merlon insulating trip.
5. poly-lithium battery according to claim 1, is characterized in that: described polypropylene film is provided with two-layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520980683.1U CN205194795U (en) | 2015-12-02 | 2015-12-02 | Polymer lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520980683.1U CN205194795U (en) | 2015-12-02 | 2015-12-02 | Polymer lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205194795U true CN205194795U (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520980683.1U Active CN205194795U (en) | 2015-12-02 | 2015-12-02 | Polymer lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205194795U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390739A (en) * | 2015-12-02 | 2016-03-09 | 成都科创佳思科技有限公司 | Polymer lithium battery |
| CN110233294A (en) * | 2019-06-19 | 2019-09-13 | 惠州市金芯科技有限公司 | A kind of portable poly-lithium battery of high capacity and manufacture craft |
-
2015
- 2015-12-02 CN CN201520980683.1U patent/CN205194795U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390739A (en) * | 2015-12-02 | 2016-03-09 | 成都科创佳思科技有限公司 | Polymer lithium battery |
| CN110233294A (en) * | 2019-06-19 | 2019-09-13 | 惠州市金芯科技有限公司 | A kind of portable poly-lithium battery of high capacity and manufacture craft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |