CN114094256B - Expansion-preventing battery structure - Google Patents
Expansion-preventing battery structure Download PDFInfo
- Publication number
- CN114094256B CN114094256B CN202111176016.4A CN202111176016A CN114094256B CN 114094256 B CN114094256 B CN 114094256B CN 202111176016 A CN202111176016 A CN 202111176016A CN 114094256 B CN114094256 B CN 114094256B
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- Prior art keywords
- plate
- welded
- holes
- baffle
- adjusting
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- 238000002955 isolation Methods 0.000 claims abstract description 17
- 230000001681 protective effect Effects 0.000 claims description 15
- 230000002265 prevention Effects 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims 1
- 239000010432 diamond Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 description 18
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 150000002641 lithium Chemical class 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 230000009172 bursting Effects 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/392—Arrangements for facilitating escape of gases with means for neutralising or absorbing electrolyte; with means for preventing leakage of electrolyte through vent holes
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
One or more embodiments of the present specification provide a battery structure having an expansion preventing structure, including: an inner plate is adhered to the inner side of the outer plate, grooves are formed in the two sides of the front surface and the back surface of the outer plate, two protection frames are welded at the positions, corresponding to the grooves, of the inner plate, and through holes are formed in the inner part, corresponding to the protection frames, of the inner plate; a baffle is uniformly welded on the inner side of the inner plate; the inner side of the baffle is welded with an adjusting plate, and the inner side of the adjusting plate is welded with a separation plate; a folded layer is reserved between the inner plate and the adjusting plate; the inner side of the isolation plate is uneven; through the use of inner tube, the effectual air that produces when having realized its use when using reduces its intensity of inflation to wherein when strengthening its protection through the protection of multilayer, the space and the baffle that leave among them have realized its effectual protection when using.
Description
Technical Field
One or more embodiments of the present disclosure relate to the field of lithium battery technology, and more particularly, to a battery structure with expansion resistance.
Background
Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a positive/negative electrode material. The chemical characteristics of lithium metal are very active, so that the processing, storage and use of lithium metal have very high requirements on environment. With the development of science and technology, lithium batteries have become the mainstream.
Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable. The lithium metal battery of the fifth generation product of the rechargeable battery is born in 1996, and the safety, the specific capacity, the self-discharge rate and the cost performance ratio of the lithium metal battery are all superior to those of the lithium ion battery. Due to its own high technical requirements, only a few countries' companies are producing such lithium metal batteries.
When the lithium battery in the prior art is used for a long time, other materials in the lithium battery expand to reduce the service life of the battery, however, the approach scheme in the prior art is to install electrodes at two ends for a certain gap to realize the expansion prevention during the use, and the actual expansion of the battery is mainly performed on the outer wall of the battery, so that the requirement of the prior art cannot be met.
Disclosure of Invention
In view of this, it is an object of one or more embodiments of the present specification to provide a battery structure with an expansion prevention function to solve the problems.
In view of the above, one or more embodiments of the present specification provide a battery structure having an expansion preventing function, including: the novel inner plate comprises an outer plate, wherein an inner plate is adhered to the inner side of the outer plate, grooves are formed in the two sides of the front surface and the back surface of the outer plate, two protection frames are welded at the positions, corresponding to the grooves, of the inner plate, and through holes are formed in the inner portion, corresponding to the protection frames, of the inner plate.
The inner side of the inner plate is uniformly welded with a baffle plate.
And the regulating plate is welded on the inner side of the baffle plate, and the isolating plate is welded on the inner side of the regulating plate.
A folded layer is reserved between the inner plate and the adjusting plate.
The inner side of the isolation plate is in an uneven state, and a filling cavity is formed in the inner side of the isolation plate.
Preferably, the filling cavity further comprises: the inner side of the filling cavity is uniformly welded with four inner pipes.
Preferably, the inner tube further comprises: the inner side of the inner tube is provided with a vacuum hole.
Preferably, the vacuum hole further comprises: the vacuum air conditioner comprises air holes and protective films, wherein the air holes are formed in two sides of each vacuum hole, and the protective films are adhered in the air holes.
Preferably, the adjusting plate and the isolation plate further comprise: twenty inner holes are uniformly formed between the adjusting plate and the isolating plate, and the plastic cylinder is adhered in the inner holes.
Preferably, the outer plate further comprises: and the positive plate is adhered to the center of the top end of the outer plate.
Preferably, the vacuum Kong Poumian has a diamond-shaped structure.
Preferably, one side of the plastic cylinder is in an arc structure.
From the foregoing, it can be seen that one or more embodiments of the present disclosure provide a battery structure having an expansion-preventing structure, which, when used through an inner tube, is matched with a vacuum hole formed at the center thereof and a protective film thereof, so that the air generated inside is effectively absorbed when used, the expansion strength of the air is reduced, and the protection of the air is enhanced through multi-layer protection, while the air gap and the baffle are remained, so that the air is effectively protected when used.
Drawings
For a clearer description of one or more embodiments of the present description or of the solutions of the prior art, the drawings that are necessary for the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are only one or more embodiments of the present description, from which other drawings can be obtained, without inventive effort, for a person skilled in the art.
FIG. 1 is a schematic top view of the overall cross-section of the present invention;
fig. 2 is a schematic diagram of a front view structure of a lithium battery according to the present invention;
FIG. 3 is an enlarged view of the area of FIG. 1A according to the present invention.
In the figure: 1-an outer plate; 11-an inner plate; 12-folding layers; 13-a baffle; 14-grooves; 15-a protective frame; 16-through holes; 17-positive plate; 2-adjusting plates; 21-a separator; 22-plastic columns; 23-inner holes; 24-filling the cavity; 3-an inner tube; 31-vacuum holes; 32-pores; 33-protective film.
Detailed Description
For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same.
It is noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present disclosure should be taken in a general sense as understood by one of ordinary skill in the art to which the present disclosure pertains. The use of the terms "first," "second," and the like in one or more embodiments of the present description does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Embodiment one:
Referring to fig. 1, 2 and 3 in combination, fig. 1 is a schematic top view of the whole embodiment of the present invention; fig. 2 is a schematic diagram of a front view structure of a lithium battery according to the present invention; FIG. 3 is an enlarged view of the area of FIG. 1A according to the present invention; the specific one with prevent inflation battery structure includes: the novel anti-theft protection device is characterized by comprising an outer plate 1, wherein an inner plate 11 is adhered to the inner side of the outer plate 1, grooves 14 are formed in two sides of the front surface and the back surface of the outer plate 1, two protection frames 15 are welded at positions, corresponding to the grooves 14, of the inner plate 11, and through holes 16 are formed in the inner portion, corresponding to the protection frames 15, of the inner plate 11.
Baffle 13 is uniformly welded on the inner side of the inner plate 11.
Adjusting plate 2, baffle 13 inboard welding have adjusting plate 2, adjusting plate 2 inboard welding have division board 21.
Wherein, through division board 21 cooperation regulating plate 2 and cooperation inside 11 and planking 1 when using, strengthen its protective strength effect when using.
A folded layer 12 is reserved between the inner plate 11 and the adjusting plate 2.
Wherein, the baffle 13 in the folded layer 12 is more effectively used for preventing the two kinds of damage caused by the bursting when the folded layer is expanded and extruded during use.
The inner side of the isolation plate 21 is in an uneven state, and a filling cavity 24 is formed in the inner side of the isolation plate 21.
Wherein the arrangement of the separator 21 and the corresponding folded layers 12, when in use, makes it easier to reduce the possibility of expansion of the cell when it is expanded.
The outer panel 1 further includes: positive plate 17, positive plate 17 is pasted at the center of the top end of outer plate 1.
The positive electrode sheet 17 can achieve the effect of contact in use.
Embodiment two:
Referring to fig. 1, 2 and 3 in combination, fig. 1 is a schematic top view of the whole embodiment of the present invention; fig. 2 is a schematic diagram of a front view structure of a lithium battery according to the present invention; FIG. 3 is an enlarged view of the area of FIG. 1A according to the present invention; the specific one with prevent inflation battery structure includes: the novel anti-theft protection device is characterized by comprising an outer plate 1, wherein an inner plate 11 is adhered to the inner side of the outer plate 1, grooves 14 are formed in two sides of the front surface and the back surface of the outer plate 1, two protection frames 15 are welded at positions, corresponding to the grooves 14, of the inner plate 11, and through holes 16 are formed in the inner portion, corresponding to the protection frames 15, of the inner plate 11.
Baffle 13 is uniformly welded on the inner side of the inner plate 11.
Adjusting plate 2, baffle 13 inboard welding have adjusting plate 2, adjusting plate 2 inboard welding have division board 21.
Wherein, through division board 21 cooperation regulating plate 2 and cooperation inside 11 and planking 1 when using, strengthen its protective strength effect when using.
A folded layer 12 is reserved between the inner plate 11 and the adjusting plate 2.
Wherein, the baffle 13 in the folded layer 12 is more effectively used for preventing the two kinds of damage caused by the bursting when the folded layer is expanded and extruded during use.
The inner side of the isolation plate 21 is in an uneven state, and a filling cavity 24 is formed in the inner side of the isolation plate 21.
Wherein the arrangement of the separator 21 and the corresponding folded layers 12, when in use, makes it easier to reduce the possibility of expansion of the cell when it is expanded.
The outer panel 1 further includes: positive plate 17, positive plate 17 is pasted at the center of the top end of outer plate 1.
The positive electrode sheet 17 can achieve the effect of contact in use.
The filling chamber 24 further includes: and the inner side of the filling cavity 24 is uniformly welded with four inner pipes 3.
The inner tube 3 further comprises: the inner side of the inner tube 3 is provided with a vacuum hole 31, and the vacuum hole 31 is arranged on the inner side of the inner tube 3.
Wherein, the vacuum hole 31 is used for reducing the air generated during the expansion and the volume generated during the expansion when in use.
The vacuum hole 31 further includes: the vacuum air conditioner comprises an air hole 32 and a protective film 33, wherein the air hole 32 is formed in two sides of the vacuum hole 31, and the protective film 33 is adhered in the air hole 32.
The section of the vacuum hole 31 is diamond-shaped.
The protection film 33 is broken when the internal expansion is generated during use through the arrangement of the air holes 32 and the protection film 33, so that the generated expansion gas is inflated during use, the expansion possibility is reduced, and the inner tube 3 is made of ceramic materials.
Embodiment III:
FIG. 1 is a schematic top view of the overall cross-section of the present invention; fig. 2 is a schematic diagram of a front view structure of a lithium battery according to the present invention; FIG. 3 is an enlarged view of the area of FIG. 1A according to the present invention; the specific one with prevent inflation battery structure includes: the novel anti-theft protection device is characterized by comprising an outer plate 1, wherein an inner plate 11 is adhered to the inner side of the outer plate 1, grooves 14 are formed in two sides of the front surface and the back surface of the outer plate 1, two protection frames 15 are welded at positions, corresponding to the grooves 14, of the inner plate 11, and through holes 16 are formed in the inner portion, corresponding to the protection frames 15, of the inner plate 11.
Baffle 13 is uniformly welded on the inner side of the inner plate 11.
Adjusting plate 2, baffle 13 inboard welding have adjusting plate 2, adjusting plate 2 inboard welding have division board 21.
Wherein, through division board 21 cooperation regulating plate 2 and cooperation inside 11 and planking 1 when using, strengthen its protective strength effect when using.
A folded layer 12 is reserved between the inner plate 11 and the adjusting plate 2.
Wherein, the baffle 13 in the folded layer 12 is more effectively used for preventing the two kinds of damage caused by the bursting when the folded layer is expanded and extruded during use.
The inner side of the isolation plate 21 is in an uneven state, and a filling cavity 24 is formed in the inner side of the isolation plate 21.
Wherein the arrangement of the separator 21 and the corresponding folded layers 12, when in use, makes it easier to reduce the possibility of expansion of the cell when it is expanded.
The outer panel 1 further includes: positive plate 17, positive plate 17 is pasted at the center of the top end of outer plate 1.
The positive electrode sheet 17 can achieve the effect of contact in use.
The filling chamber 24 further includes: and the inner side of the filling cavity 24 is uniformly welded with four inner pipes 3.
The inner tube 3 further comprises: the inner side of the inner tube 3 is provided with a vacuum hole 31, and the vacuum hole 31 is arranged on the inner side of the inner tube 3.
Wherein, the vacuum hole 31 is used for reducing the air generated during the expansion and the volume generated during the expansion when in use.
The vacuum hole 31 further includes: the vacuum air conditioner comprises an air hole 32 and a protective film 33, wherein the air hole 32 is formed in two sides of the vacuum hole 31, and the protective film 33 is adhered in the air hole 32.
The section of the vacuum hole 31 is diamond-shaped.
The protection film 33 is broken when the internal expansion is generated during use through the arrangement of the air holes 32 and the protection film 33, so that the generated expansion gas is inflated during use, the expansion possibility is reduced, and the inner tube 3 is made of ceramic materials.
The adjusting plate 2 and the isolation plate 21 further comprise: twenty inner holes 23 are uniformly formed between the adjusting plate 2 and the isolation plate 21, and the plastic column 22 is adhered in the inner holes 23.
One side of the plastic column 22 is in an arc structure.
Wherein, in use, the plastic cylinder 22 and the inner hole 23 are passed through, so that the expansion of the plastic cylinder has a certain protective effect.
Working principle: when the inner tube 3 is used, the vacuum holes 31 formed in the center of the inner tube are matched with the arrangement of the protective film 33, so that the air generated in the inner tube can be effectively absorbed when the inner tube is used, the expansion strength of the inner tube is reduced, and the inner tube is protected through multi-layer protection, and meanwhile, the reserved gaps and the baffle 13 can be effectively protected when the inner tube is used.
While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description.
The present disclosure is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Any omissions, modifications, equivalents, improvements, and the like, which are within the spirit and principles of the one or more embodiments of the disclosure, are therefore intended to be included within the scope of the disclosure.
Claims (1)
1. A battery structure having an expansion prevention, comprising:
The novel anti-theft protection device comprises an outer plate (1), wherein an inner plate (11) is adhered to the inner side of the outer plate (1), grooves (14) are formed in the two sides of the front surface and the back surface of the outer plate (1), two protection frames (15) are welded at positions, corresponding to the grooves (14), of the inner plate (11), and through holes (16) are formed in the inner portion, corresponding to the protection frames (15), of the inner plate (11);
Baffle plates (13) are uniformly welded on the inner side of the inner plate (11);
The adjusting plate (2), the inner side of the baffle (13) is welded with the adjusting plate (2), and the inner side of the adjusting plate (2) is welded with the isolation plate (21);
a folded layer (12) is reserved between the inner plate (11) and the adjusting plate (2);
the inner side of the isolation plate (21) is in an uneven state, and a filling cavity (24) is formed in the inner side of the isolation plate (21);
The filling chamber (24) further comprises:
the inner side of the filling cavity (24) is uniformly welded with four inner pipes (3);
the inner tube (3) further comprises:
the inner side of the inner tube (3) is provided with a vacuum hole (31);
the vacuum hole (31) further comprises:
the vacuum air conditioner comprises air holes (32) and protective films (33), wherein the air holes (32) are formed in two sides of the vacuum holes (31), and the protective films (33) are adhered in the air holes (32);
The adjusting plate (2) and the isolation plate (21) further comprise:
Twenty inner holes (23) are uniformly formed between the adjusting plate (2) and the isolation plate (21), and the plastic cylinder (22) is adhered in the inner holes (23);
The outer plate (1) further comprises:
The positive plate (17) is stuck to the center of the top end of the outer plate (1);
the section of the vacuum hole (31) is in a diamond structure;
One side of the plastic cylinder (22) is in an arc-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111176016.4A CN114094256B (en) | 2021-10-09 | 2021-10-09 | Expansion-preventing battery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111176016.4A CN114094256B (en) | 2021-10-09 | 2021-10-09 | Expansion-preventing battery structure |
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| Publication Number | Publication Date |
|---|---|
| CN114094256A CN114094256A (en) | 2022-02-25 |
| CN114094256B true CN114094256B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111176016.4A Active CN114094256B (en) | 2021-10-09 | 2021-10-09 | Expansion-preventing battery structure |
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Citations (6)
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|---|---|---|---|---|
| WO2000036691A1 (en) * | 1998-12-15 | 2000-06-22 | Electric Fuel Limited | Battery pack design for metal-air battery cells |
| CN209786014U (en) * | 2019-04-26 | 2019-12-13 | 重庆天辉能源科技有限公司 | Cylindrical lithium ion battery shell protector |
| CN211088340U (en) * | 2019-11-04 | 2020-07-24 | 林俊龙 | Lithium battery installation component with protection function |
| CN112072153A (en) * | 2020-07-23 | 2020-12-11 | 安徽正熹标王新能源有限公司 | Protector is used in battery production |
| CN212725513U (en) * | 2020-07-21 | 2021-03-16 | 朱维权 | Expansion absorbing device of soft package battery |
| CN213660493U (en) * | 2020-11-07 | 2021-07-09 | 山东科技大学 | Lithium battery with plastic package explosion-proof structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11784365B2 (en) * | 2017-03-01 | 2023-10-10 | Panasonic Intellectual Property Management Co., Ltd. | Battery module |
-
2021
- 2021-10-09 CN CN202111176016.4A patent/CN114094256B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000036691A1 (en) * | 1998-12-15 | 2000-06-22 | Electric Fuel Limited | Battery pack design for metal-air battery cells |
| CN209786014U (en) * | 2019-04-26 | 2019-12-13 | 重庆天辉能源科技有限公司 | Cylindrical lithium ion battery shell protector |
| CN211088340U (en) * | 2019-11-04 | 2020-07-24 | 林俊龙 | Lithium battery installation component with protection function |
| CN212725513U (en) * | 2020-07-21 | 2021-03-16 | 朱维权 | Expansion absorbing device of soft package battery |
| CN112072153A (en) * | 2020-07-23 | 2020-12-11 | 安徽正熹标王新能源有限公司 | Protector is used in battery production |
| CN213660493U (en) * | 2020-11-07 | 2021-07-09 | 山东科技大学 | Lithium battery with plastic package explosion-proof structure |
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| Title |
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