CN215377523U - Lithium ion battery cell structure with higher safety performance - Google Patents
Lithium ion battery cell structure with higher safety performance Download PDFInfo
- Publication number
- CN215377523U CN215377523U CN202121306845.5U CN202121306845U CN215377523U CN 215377523 U CN215377523 U CN 215377523U CN 202121306845 U CN202121306845 U CN 202121306845U CN 215377523 U CN215377523 U CN 215377523U
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- China
- Prior art keywords
- layer
- lithium ion
- ion battery
- diaphragm
- insulating layer
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 43
- 230000005611 electricity Effects 0.000 claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims abstract description 17
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003063 flame retardant Substances 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 24
- 238000009413 insulation Methods 0.000 claims description 10
- 230000007547 defect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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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
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Abstract
The utility model relates to the technical field of lithium ion battery cells, in particular to a lithium ion battery cell structure with higher safety performance, which comprises an electrolytic medium, a positive electrode shell, a first diaphragm, a negative electrode shell and a second diaphragm, wherein the periphery of the second diaphragm is sleeved with a protective sleeve, the periphery of the protective sleeve is sleeved with a heat-insulating layer, the periphery of the heat-insulating layer is sleeved with an explosion-proof layer, the periphery of the explosion-proof layer is sleeved with a waterproof layer, the periphery of the waterproof layer is sleeved with a fireproof layer, the periphery of the fireproof layer is sleeved with an antistatic layer, the periphery of the antistatic layer is sleeved with an insulating layer, and the periphery of the insulating layer is sleeved with a shell, the cooperation between explosion-proof layer, waterproof layer, flame retardant coating, antistatic layer, insulating layer and the shell has solved present lithium ion battery electricity core and has still had the defect of security performance, influences the normal operating problem of lithium ion battery electricity core.
Description
Technical Field
The utility model relates to the technical field of lithium ion battery cells, in particular to a lithium ion battery cell structure with higher safety performance.
Background
The battery cell refers to a single electrochemical cell containing a positive electrode and a negative electrode, is not generally used directly, is different from a battery containing a protection circuit and a shell, and can be used directly. The basic structure main materials of the lithium battery cell are as follows: a positive electrode, a negative electrode, an electrolyte, and a separator; the structure is as follows: round, square, laminated, and wound; the form is as follows: polymer, liquid lithium ion.
The conventional lithium ion battery cell has the defect of safety performance, which affects the normal work of the lithium ion battery cell, and therefore, a lithium ion battery cell structure with higher safety performance is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lithium ion battery cell structure with higher safety performance so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a lithium ion battery electricity core structure with higher security performance, includes electrolytic medium, positive pole shell, first diaphragm, negative pole shell and second diaphragm, the negative pole shell is located the second diaphragm, first diaphragm is located the negative pole shell, positive pole shell is located first diaphragm, electrolytic medium is located positive pole shell, the peripheral cover of second diaphragm is equipped with the protective sheath, the peripheral cover of protective sheath is equipped with the insulating layer, the peripheral cover of insulating layer is equipped with explosion-proof layer, explosion-proof layer's peripheral cover is equipped with the waterproof layer, the peripheral cover of waterproof layer is equipped with the flame retardant coating, the peripheral cover of flame retardant coating is equipped with antistatic layer, antistatic layer's peripheral cover is equipped with the insulating layer, the peripheral cover of insulating layer is equipped with the shell.
Preferably, the protective sleeve is closely bonded with the heat insulation layer, and the heat insulation layer is closely bonded with the explosion-proof layer.
Preferably, the explosion-proof layer is closely bonded with the waterproof layer, and the waterproof layer is closely bonded with the fireproof layer.
Preferably, the flame retardant coating closely bonds with antistatic layer, antistatic layer closely bonds with the insulating layer.
Preferably, the insulating layer is tightly adhered to the housing.
Compared with the prior art, the utility model has the beneficial effects that:
the lithium ion battery cell structure with high safety performance protects a lithium ion battery cell through a protective sleeve, so that internal corrosive liquid is prevented from flowing out, a heat insulation layer can isolate external high temperature, an explosion-proof layer can prevent the lithium ion battery cell from exploding and avoid causing personal injury, a waterproof layer can isolate external water from invading the interior and influence the work of the lithium ion battery cell, a fireproof layer can prevent the lithium ion battery cell from being burnt out by big fire, an antistatic layer can prevent the antistatic interference, an insulating layer can prevent the lithium ion battery cell from electric leakage, a shell can carry out omnibearing protection on the internal structure, and the normal work of the lithium ion battery cell is ensured; the problem of present lithium ion battery cell still have the defect of security performance, influence the normal work of lithium ion battery cell is solved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic cross-sectional view of the overall structure of the present invention.
The various reference numbers in the figures mean:
an electrolytic medium 1; a positive electrode case 11; a first diaphragm 12; negative electrode case 13; a second diaphragm 14;
a protective sleeve 2;
a heat insulation layer 3;
an explosion-proof layer 4;
a waterproof layer 5;
a fire-proof layer 6;
an antistatic layer 7;
an insulating layer 8;
a housing 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Referring to fig. 1-2, the present invention provides the following technical solutions:
the utility model provides a lithium ion battery electricity core structure with higher security performance, including electrolytic medium 1, positive pole shell 11, first diaphragm 12, negative pole shell 13 and second diaphragm 14, negative pole shell 13 is located second diaphragm 14, first diaphragm 12 is located negative pole shell 13, positive pole shell 11 is located first diaphragm 12, electrolytic medium 1 is located positive pole shell 11, the peripheral cover of second diaphragm 14 is equipped with protective sheath 2, the peripheral cover of protective sheath 2 is equipped with insulating layer 3, the peripheral cover of insulating layer 3 is equipped with explosion-proof layer 4, the peripheral cover of explosion-proof layer 4 is equipped with waterproof layer 5, the peripheral cover of waterproof layer 5 is equipped with flame retardant coating 6, the peripheral cover of flame retardant coating 6 is equipped with antistatic layer 7, the peripheral cover of antistatic layer 7 is equipped with insulating layer 8, the peripheral cover of insulating layer 8 is equipped with shell 9.
Specifically, the protective sleeve 2 is tightly bonded with the heat insulation layer 3, the heat insulation layer 3 is tightly bonded with the explosion-proof layer 4, the stability of the structure is ensured, the protective sleeve 2 is mainly made of steel, chromium, nickel, aluminum and titanium materials capable of forming a protective film, copper capable of changing the electrode potential and titanium and niobium capable of improving intergranular corrosion are added into the materials, so that the corrosion resistance is improved, and the protective sleeve 2 can protect the inside; the thermal insulation layer 3 is made of glass fiber materials, and the materials have thermal insulation performance, so that the battery core can be prevented from being influenced by external high temperature.
Further, the explosion-proof layer 4 is tightly bonded with the waterproof layer 5, and the waterproof layer 5 is tightly bonded with the fireproof layer 6, so that the stability of the structure is ensured; the explosion-proof layer 4 is made of beryllium bronze, and the material has high strength and hardness, so that the explosion of the lithium ion battery cell can be prevented; waterproof layer 5 adopts the polyvinyl chloride material, and waterproof layer 5 that its material was made can completely cut off external water invasion lithium ion battery electricity core, guarantees the safety of lithium ion battery electricity core, lets the normal work of lithium ion battery electricity core ability.
Specifically, the fireproof layer 6 is tightly bonded with the antistatic layer 7, the antistatic layer 7 is tightly bonded with the insulating layer 8, the stability of the structure is ensured, the fireproof layer 6 is made of magnesium hydroxide, and the material has a flame-retardant effect and can prevent the electric core of the lithium ion battery from being burnt out by big fire; antistatic layer 7 adopts the polyethylene terephthalate material, and its material has antistatic interference's effect, guarantees that lithium ion battery electricity core can normal work.
Further, the insulating layer 8 is tightly adhered to the housing 9. The stability of structure is ensured, and insulating layer 8 adopts the rubber material, and its material has isolated electric current's effect, prevents that lithium ion battery electricity core from leaking electricity.
The lithium ion battery electricity core structure with higher security performance of this embodiment is when using, make protective sheath 2 protect lithium ion battery electricity core, insulating layer 3 can completely cut off external high temperature, explosion-proof layer 4 can prevent lithium ion battery electricity core explosion, avoid causing personnel injured, waterproof layer 5 can completely cut off external water invasion lithium ion battery electricity core, flame retardant coating 6 can prevent that lithium ion battery electricity core from being burnt out by big fire, antistatic layer 7 can antistatic interference, guarantee the work that lithium ion battery electricity core can be normal, insulating layer 8 prevents lithium ion battery electricity core electric leakage, shell 9 can carry out the omnidirectional protection to inside structure.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a lithium ion battery electricity core structure with higher security performance, includes electrolytic medium (1), positive pole shell (11), first diaphragm (12), negative pole shell (13) and second diaphragm (14), negative pole shell (13) are located second diaphragm (14), first diaphragm (12) are located negative pole shell (13), positive pole shell (11) are located first diaphragm (12), electrolytic medium (1) are located positive pole shell (11), its characterized in that: the peripheral cover of second diaphragm (14) is equipped with protective sheath (2), the peripheral cover of protective sheath (2) is equipped with insulating layer (3), the peripheral cover of insulating layer (3) is equipped with explosion-proof layer (4), the peripheral cover of explosion-proof layer (4) is equipped with waterproof layer (5), the peripheral cover of waterproof layer (5) is equipped with flame retardant coating (6), the peripheral cover of flame retardant coating (6) is equipped with antistatic layer (7), the peripheral cover of antistatic layer (7) is equipped with insulating layer (8), the peripheral cover of insulating layer (8) is equipped with shell (9).
2. The lithium ion battery cell structure with higher safety performance of claim 1, wherein: the protective sleeve (2) is tightly bonded with the heat insulation layer (3), and the heat insulation layer (3) is tightly bonded with the explosion-proof layer (4).
3. The lithium ion battery cell structure with higher safety performance of claim 1, wherein: the explosion-proof layer (4) is tightly bonded with the waterproof layer (5), and the waterproof layer (5) is tightly bonded with the fireproof layer (6).
4. The lithium ion battery cell structure with higher safety performance of claim 1, wherein: the fireproof layer (6) is tightly bonded with the antistatic layer (7), and the antistatic layer (7) is tightly bonded with the insulating layer (8).
5. The lithium ion battery cell structure with higher safety performance of claim 1, wherein: the insulating layer (8) is tightly adhered to the shell (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121306845.5U CN215377523U (en) | 2021-06-11 | 2021-06-11 | Lithium ion battery cell structure with higher safety performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121306845.5U CN215377523U (en) | 2021-06-11 | 2021-06-11 | Lithium ion battery cell structure with higher safety performance |
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| Publication Number | Publication Date |
|---|---|
| CN215377523U true CN215377523U (en) | 2021-12-31 |
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| CN202121306845.5U Active CN215377523U (en) | 2021-06-11 | 2021-06-11 | Lithium ion battery cell structure with higher safety performance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114407479A (en) * | 2022-01-17 | 2022-04-29 | 株洲时代新材料科技股份有限公司 | Flexible fireproof and explosion-proof plate and preparation method thereof |
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2021
- 2021-06-11 CN CN202121306845.5U patent/CN215377523U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114407479A (en) * | 2022-01-17 | 2022-04-29 | 株洲时代新材料科技股份有限公司 | Flexible fireproof and explosion-proof plate and preparation method thereof |
| CN114407479B (en) * | 2022-01-17 | 2023-08-25 | 株洲时代新材料科技股份有限公司 | Flexible fireproof and explosion-proof plate and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A lithium-ion battery cell structure with high safety performance Granted publication date: 20211231 Pledgee: Dongguan Humen Branch of China Postal Savings Bank Co.,Ltd. Pledgor: Guangdong Jiashang New Energy Technology Co.,Ltd. Registration number: Y2024980023145 |