CN210778851U - Lithium ion battery pole piece and lithium ion battery - Google Patents
Lithium ion battery pole piece and lithium ion battery Download PDFInfo
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- CN210778851U CN210778851U CN201921459497.8U CN201921459497U CN210778851U CN 210778851 U CN210778851 U CN 210778851U CN 201921459497 U CN201921459497 U CN 201921459497U CN 210778851 U CN210778851 U CN 210778851U
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- lithium ion
- ion battery
- shell
- pole piece
- 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
Abstract
The utility model discloses a lithium ion battery pole piece and lithium ion battery, including the shell, fixed mounting has insulating apron on the inner wall of shell, and the shell intussuseption is filled with electrolyte, and fixed mounting has the barrier film between the inner wall of insulating apron and shell, and fixed mounting has positive pole device and negative pole device on the insulating apron, is provided with anodal ear on the positive pole device, is provided with the negative pole ear on the negative pole device. According to the lithium ion battery pole piece and the lithium ion battery, the positive electrode is formed by combining the lithium iron phosphate layer and the aluminum foil, the negative electrode is formed by matching graphite and the copper foil, the lithium ion battery pole piece and the lithium ion battery can have a good durable effect, and are more environment-friendly than batteries containing cobalt and manganese.
Description
Technical Field
The utility model relates to a lithium ion battery technical field specifically is a lithium ion battery pole piece and lithium ion battery.
Background
Lithium ion battery is a secondary battery (rechargeable battery) that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. In the process of charging and discharging, Li + is inserted and extracted back and forth between the two electrodes, wherein during charging, Li + is extracted from the positive electrode and inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge.
Most of the existing lithium ion batteries contain cobalt and manganese, are high in manufacturing cost, not environment-friendly enough, not stable enough in use and short in service life.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lithium ion battery pole piece and lithium ion battery to there is the problem of defect in the lithium ion battery who solves and contains cobalt and manganese.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lithium ion battery pole piece and lithium ion battery, includes the shell, fixed mounting has insulating apron on the inner wall of shell, the shell intussuseption is filled with electrolyte, fixed mounting has the barrier film between the inner wall of insulating apron and shell, fixed mounting has anodal device and negative pole device on the insulating apron, be provided with anodal ear on the anodal device, be provided with the negative pole ear on the negative pole device.
Preferably, the positive device comprises an aluminum foil and a lithium iron phosphate layer, the aluminum foil is wrapped by the lithium iron phosphate layer, and the aluminum foil and the lithium iron phosphate layer are both connected with the positive lug.
Preferably, the negative electrode device comprises a copper foil and graphite, the copper foil is wrapped by the graphite, and the copper foil and the graphite are both connected with the negative electrode tab.
Preferably, the shell is made of aluminum materials, the outer wall of the shell is wrapped with a protective layer, and the insulating cover plate and the protective layer are both made of polyvinyl chloride materials.
Preferably, the electrolyte comprises an ethylene carbonate material, a dimethyl carbonate material, a ethyl methyl carbonate material, and a diethyl carbonate material.
Compared with the prior art, the beneficial effects of the utility model are that: according to the lithium ion battery pole piece and the lithium ion battery, the positive electrode is formed by combining the lithium iron phosphate layer and the aluminum foil, the negative electrode is formed by matching graphite and the copper foil, the lithium ion battery pole piece and the lithium ion battery can have a good durable effect, and are more environment-friendly than batteries containing cobalt and manganese.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the positive electrode device of the present invention;
fig. 3 is a schematic structural diagram of the cathode device of the present invention.
In the figure: 1 shell, 11 insulating cover plates, 12 electrolyte, 13 isolating films, 14 positive electrode devices, 15 negative electrode devices, 16 positive electrode tabs, 17 negative electrode tabs, 18 aluminum foils, 19 lithium iron phosphate layers, 110 copper foils and 111 graphite.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a lithium ion battery pole piece and lithium ion battery, which comprises a housing 1, fixed mounting has insulating cover plate 11 on the inner wall of shell 1, shell 1 is made by aluminium material, the parcel has the protective layer on the outer wall of shell 1, insulating cover plate 11 and protective layer are made by the polyvinyl chloride material, the intussuseption of shell 1 is filled with electrolyte 12, electrolyte 12 contains the ethylene carbonate material, the dimethyl carbonate material, methyl ethyl carbonate material and diethyl carbonate material, fixed mounting has barrier film 13 between the inner wall of insulating cover plate 11 and shell 1, fixed mounting has positive pole device 14 and negative pole device 15 on the insulating cover plate 11, be provided with anodal ear 16 on the positive pole device 14, be provided with negative pole ear 17 on the negative pole device 15.
Referring to fig. 2, the positive electrode device 14 includes an aluminum foil 18 and a lithium iron phosphate layer 19, the aluminum foil 18 is wrapped by the lithium iron phosphate layer 19, both the aluminum foil 18 and the lithium iron phosphate layer 19 are connected to the positive electrode tab 16, and the lithium iron phosphate layer 19 is a battery positive electrode material and is essentially lithium ions.
Referring to fig. 3, the negative electrode device 15 includes a copper foil 110 and graphite 111, the copper foil 110 is wrapped by the graphite 111, the copper foil 110 and the graphite 111 are both connected with the negative electrode tab 17, and lithium ions move between the positive electrode graphite and the negative electrode graphite to realize charging and discharging.
The utility model discloses when concrete implementation: lithium iron phosphate layer 19 includes lithium ion, iron and phosphide, lithium ion passes through barrier film 13 and removes between anodal and negative pole graphite, the process of charging discharge carries out, barrier film 13 is the polymer diaphragm, good penetrating effect has, lithium iron phosphate layer 19 stability is high, long service life, do not contain noble metal such as cobalt and manganese, more environmental protection than lithium cobaltate or lithium manganate, some triplexes can be doped in the pure lithium iron phosphate layer 19 that generally can not use, the use of collocating, protective layer and insulating cover plate 11 on the shell 1 can be when using, play an insulating protection's effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a lithium ion battery pole piece and lithium ion battery, includes shell (1), its characterized in that: fixed mounting has insulating apron (11) on the inner wall of shell (1), shell (1) intussuseption is filled with electrolyte (12), fixed mounting has barrier film (13) between the inner wall of insulating apron (11) and shell (1), fixed mounting has anodal device (14) and negative pole device (15) on insulating apron (11), be provided with anodal ear (16) on anodal device (14), be provided with negative pole ear (17) on negative pole device (15).
2. The lithium ion battery pole piece and the lithium ion battery of claim 1, wherein: the anode device (14) comprises an aluminum foil (18) and a lithium iron phosphate layer (19), the aluminum foil (18) is wrapped by the lithium iron phosphate layer (19), and the aluminum foil (18) and the lithium iron phosphate layer (19) are both connected with the anode lug (16).
3. The lithium ion battery pole piece and the lithium ion battery of claim 1, wherein: the negative electrode device (15) comprises a copper foil (110) and graphite (111), the copper foil (110) is wrapped by the graphite (111), and the copper foil (110) and the graphite (111) are both connected with the negative electrode tab (17).
4. The lithium ion battery pole piece and the lithium ion battery of claim 1, wherein: the shell (1) is made of aluminum materials, the outer wall of the shell (1) is wrapped with a protective layer, and the insulating cover plate (11) and the protective layer are made of polyvinyl chloride materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459497.8U CN210778851U (en) | 2019-09-03 | 2019-09-03 | Lithium ion battery pole piece and lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459497.8U CN210778851U (en) | 2019-09-03 | 2019-09-03 | Lithium ion battery pole piece and lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210778851U true CN210778851U (en) | 2020-06-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921459497.8U Active CN210778851U (en) | 2019-09-03 | 2019-09-03 | Lithium ion battery pole piece and lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210778851U (en) |
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2019
- 2019-09-03 CN CN201921459497.8U patent/CN210778851U/en active Active
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