CN213401448U - Automatic lithium cell of protection - Google Patents
Automatic lithium cell of protection Download PDFInfo
- Publication number
- CN213401448U CN213401448U CN202021849056.1U CN202021849056U CN213401448U CN 213401448 U CN213401448 U CN 213401448U CN 202021849056 U CN202021849056 U CN 202021849056U CN 213401448 U CN213401448 U CN 213401448U
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- battery
- negative electrode
- positive electrode
- lug
- positive
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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 an automatic lithium cell of protection, including a lithium cell main part, lithium cell main part includes: the battery comprises a battery core, a positive electrode lug, a negative electrode lug and a battery shell; the battery core is arranged inside the battery shell; the battery cell comprises: electrolyte, positive electrode, negative electrode and diaphragm; the anode, the cathode and the diaphragm are soaked in the electrolyte; the separator separates the positive electrode and the negative electrode; one end of the negative electrode tab extends out of the lower end of the battery shell; the other end of the positive lug is connected with the positive electrode; the other end of the negative electrode lug is connected with the negative electrode; the positive electrode tab is provided with a fusing resistor; the battery has chargeable property; accords with the modern environment protection meanings; meanwhile, the fusing resistor is arranged on the positive electrode lug, and when the passing current is too large, the fusing resistor can fuse the positive electrode lug to avoid serious accidents caused by continuous short circuit of the battery; the safety of the battery is improved, and the safety of a user is guaranteed.
Description
Technical Field
The utility model relates to a lithium cell field especially relates to an automatic lithium cell of protection.
Background
The lithium battery is a battery which uses lithium metal or lithium alloy as a positive/negative electrode material and uses a nonaqueous electrolyte solution; with the development of science and technology, lithium batteries have become the mainstream; lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries; lithium ion batteries do not contain lithium in the metallic state and are rechargeable; because the chemical characteristics of the lithium metal are very active, the lithium metal has very high requirements on the environment in processing, storage and use; in recent years, explosion of lithium batteries has also occurred.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides an automatic lithium battery of protection can protect the lithium battery in order to avoid explosion.
The utility model provides a technical scheme that its technical problem adopted is: an automatically protected lithium battery comprising a lithium battery body, said lithium battery body comprising: the battery comprises a battery core, a positive electrode lug, a negative electrode lug and a battery shell; the battery core is arranged inside the battery shell; the battery cell comprises: electrolyte, positive electrode, negative electrode and diaphragm; the anode, the cathode and the diaphragm are soaked in the electrolyte; the separator separates the positive electrode and the negative electrode; one end of the positive lug extends out of the upper end of the battery shell; one end of the negative electrode tab extends out of the lower end of the battery shell; the other end of the positive lug is connected with the positive electrode; the other end of the negative electrode lug is connected with the negative electrode; and the positive lug is provided with a fusing resistor.
Further, the positive electrode is a lithium manganate compound;
further, the negative electrode is graphite;
furthermore, a microporous structure is arranged on the diaphragm;
further, the battery shell is a cylinder;
furthermore, plastic sealing tapes are arranged at the joints of the positive electrode lug and the negative electrode lug with the battery shell;
compared with the prior art, the beneficial effects of the utility model are that: the lithium battery with automatic protection of the utility model is a lithium ion battery, which selects lithium metal oxide as anode material, graphite as cathode material and uses non-aqueous electrolyte; so that the battery has chargeable property; accords with the modern environment protection meanings; meanwhile, the fusing resistor is arranged on the positive lug, and when the passing current is too large, the fusing resistor can fuse the positive lug to avoid serious accidents caused by continuous short circuit of the battery; the safety of the battery is improved, and the safety of a user is guaranteed.
Drawings
Fig. 1 is an overall schematic view 1 of the present invention;
fig. 2 is an overall schematic view 2 of the present invention;
reference numbers in the figures: 1-electric core; 11-an electrolyte; 12-a positive electrode; 13-a negative electrode; 14-a membrane; 2, positive tab; 3-negative pole ear; 4-a battery housing; 5-fuse resistance; 6-plastic sealing tape.
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.
The following describes a lithium battery of the present invention with reference to fig. 1-2 in detail: an automatically protected lithium battery comprising a lithium battery body, said lithium battery body comprising: the battery comprises a battery core 1, a positive electrode tab 2, a negative electrode tab 3 and a battery shell 4; the battery core 1 is arranged inside the battery shell 4; the battery cell 1 includes: an electrolyte 11, a positive electrode 12, a negative electrode 13, and a separator 14; the positive electrode 12, the negative electrode 13 and the separator 14 are immersed in the electrolyte 11; the separator 14 separates the positive electrode 12 and the negative electrode 13; one end of the positive lug 2 extends out of the upper end of the battery shell 4; one end of the negative electrode tab 3 extends out of the lower end of the battery shell 4; the other end of the positive lug 2 is connected with the positive electrode 12; the other end of the negative electrode tab 3 is connected with the negative electrode 13; and the positive lug 2 is provided with a fusing resistor 5.
The positive electrode 12 is a lithium manganate compound; the negative electrode 13 is graphite; the diaphragm 14 is provided with a micropore structure; the battery shell 4 is a cylinder; and plastic sealing tapes 6 are arranged at the joints of the positive electrode tabs 2, the negative electrode tabs 3 and the battery shell 4.
The working principle is as follows: the charge and discharge of the lithium battery are from chemical reactions; lithium ion intercalation during discharge of the positive electrode 12, lithium ion deintercalation during charge, lithium ion deintercalation during discharge of the negative electrode 13, and lithium ion intercalation during charge; lithium ions in the electrolyte 11 flow to and from the positive electrode 12 and the negative electrode 13 to realize the charge and discharge of the lithium battery; when the battery meets water or an external circuit is short-circuited, so that the current passing through the lithium battery is overlarge, the fusing resistor 5 can be heated instantly to fuse the positive lug 2, so that the battery is disconnected, and the automatic protection effect is realized; the battery case 4 protects the internal circuit; the plastic sealing strip 6 performs a certain moisture-proof function.
To sum up, the lithium battery with automatic protection of the utility model is a lithium ion battery, which selects lithium metal oxide as anode material, graphite as cathode material and uses non-aqueous electrolyte; so that the battery has chargeable property; accords with the modern environment protection meanings; meanwhile, the fusing resistor is arranged on the positive lug, and when the passing current is too large, the fusing resistor can fuse the positive lug to avoid serious accidents caused by continuous short circuit of the battery; the safety of the battery is improved, and the safety of a user is guaranteed.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. An automatically protected lithium battery, comprising a lithium battery main body, said lithium battery main body comprising: the battery comprises a battery cell (1), a positive electrode tab (2), a negative electrode tab (3) and a battery shell (4); the battery core (1) is arranged in the battery shell (4);
the battery cell (1) comprises: an electrolyte (11), a positive electrode (12), a negative electrode (13), and a separator (14); the positive electrode (12), the negative electrode (13) and the diaphragm (14) are soaked in the electrolyte (11); the separator (14) separates the positive electrode (12) and the negative electrode (13);
one end of the positive lug (2) extends out of the upper end of the battery shell (4); one end of the negative electrode tab (3) extends out of the lower end of the battery shell (4); the other end of the positive lug (2) is connected with the positive electrode (12); the other end of the negative electrode tab (3) is connected with the negative electrode (13);
and the positive lug (2) is provided with a fusing resistor (5).
2. An automatically protected lithium battery as claimed in claim 1, characterized in that: the positive electrode (12) is a lithium manganate compound.
3. An automatically protected lithium battery as claimed in claim 1, characterized in that: the negative electrode (13) is graphite.
4. An automatically protected lithium battery as claimed in claim 1, characterized in that: the diaphragm (14) is provided with a micropore structure.
5. An automatically protected lithium battery as claimed in claim 1, characterized in that: the battery shell (4) is a cylinder.
6. An automatically protected lithium battery as claimed in claim 1, characterized in that: and plastic sealing tapes (6) are arranged at the joints of the positive electrode lug (2), the negative electrode lug (3) and the battery shell (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021849056.1U CN213401448U (en) | 2020-08-29 | 2020-08-29 | Automatic lithium cell of protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021849056.1U CN213401448U (en) | 2020-08-29 | 2020-08-29 | Automatic lithium cell of protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213401448U true CN213401448U (en) | 2021-06-08 |
Family
ID=76212168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021849056.1U Active CN213401448U (en) | 2020-08-29 | 2020-08-29 | Automatic lithium cell of protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213401448U (en) |
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2020
- 2020-08-29 CN CN202021849056.1U patent/CN213401448U/en active Active
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