CN113707981A - Cylindrical battery pack battery - Google Patents
Cylindrical battery pack battery Download PDFInfo
- Publication number
- CN113707981A CN113707981A CN202111009331.8A CN202111009331A CN113707981A CN 113707981 A CN113707981 A CN 113707981A CN 202111009331 A CN202111009331 A CN 202111009331A CN 113707981 A CN113707981 A CN 113707981A
- Authority
- CN
- China
- Prior art keywords
- epoxy
- electric core
- grillage
- fixed connection
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000004593 Epoxy Substances 0.000 claims abstract description 39
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 24
- 241000209219 Hordeum Species 0.000 claims abstract description 17
- 235000007340 Hordeum vulgare Nutrition 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 abstract description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 abstract description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 3
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 3
- 239000004800 polyvinyl chloride Substances 0.000 abstract 3
- 210000004027 cell Anatomy 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/227—Organic material
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/471—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof
- H01M50/474—Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof characterised by their position inside the cells
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
- H01M50/522—Inorganic material
-
- 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 invention relates to the technical field of batteries, in particular to a cylindrical battery pack battery, which comprises a battery core, a battery core bracket, a circuit board, a nickel sheet, a terminal wire, insulating highland barley paper, an epoxy board frame and a PVC (polyvinyl chloride) heat-shrinkable sleeve, wherein: on electric core fixed connection to electric core support, circuit board fixed connection to electric core, nickel piece fixed connection to the bottom of electric core, terminal line connection to circuit board, epoxy grillage fixed connection to the outside of electric core, terminal line pass through the epoxy grillage, on insulating highland barley paper fixed connection to epoxy grillage, insulating highland barley paper is located between electric core and the epoxy grillage, PVC pyrocondensation cover cup joints to the epoxy grillage on. According to the invention, the nickel sheet is formed by the male die, the convex surface of the male die formed nickel sheet is better contacted with the battery cell surface, the welding is firmer, and no rosin joint is caused.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a cylindrical battery pack battery.
Background
At present, with the continuous improvement of the living standard of people's material culture and the rapid development of the electronic product market, such as the improvement of the performance of various digital electronic products such as smart phones, digital cameras, electronic bracelets, lighting illumination, robot products and the like and the increase of the manufacturing cost of factory production lines, the improvement of low production efficiency, reject ratio and the guarantee of safety quality, the cylindrical battery pack is very common in the battery industry, and the purpose is in the robot products, various digital electronic products and the like.
And among the current cylinder group battery, the nickel piece that the group battery is connected is simple plane formula nickel piece usually, and this kind of nickel piece welding can have the hidden danger of rosin joint on electric core, and the cylinder group battery produces the electric leakage easily simultaneously, leads to electric core to damage easily.
Disclosure of Invention
The invention aims to solve the problems that hidden troubles of cold joint exist in the prior art and a cylindrical battery pack is easy to generate electric leakage, and provides a cylindrical battery pack battery.
In order to achieve the purpose, the invention adopts the following technical scheme:
the design one kind of cylindrical battery group battery, including electric core, electric core support, circuit board, nickel sheet, terminal line, insulating highland barley paper, epoxy grillage and PVC thermal shrinkage bush, wherein:
electric core fixed connection to on the electricity core support, circuit board fixed connection to on the electricity core, nickel piece fixed connection to the bottom of electricity core, the nickel piece is terrace die shaping nickel piece, terminal line connection to on the circuit board, epoxy grillage fixed connection to the outside of electricity core, the terminal line passes through the epoxy grillage, insulating highland barley paper fixed connection to on the epoxy grillage, insulating highland barley paper is located the electricity core with between the epoxy grillage, PVC pyrocondensation cover cup joints to on the epoxy grillage.
Preferably, fixedly connected with sealing washer on the epoxy grillage, the sealing washer is located the terminal line with the contact department of epoxy grillage.
Preferably, the battery cell is fixedly connected with a sponge pad for protecting the circuit board.
Preferably, the PVC heat shrinkable sleeve is sprayed with a trademark layer.
Preferably, the PVC thermal shrinkable sleeve comprises an outer sleeve, a connecting column, an inner sleeve and an elastic column, wherein one end of the connecting column is fixedly connected to the outer sleeve, the other end of the connecting column is fixedly connected to the inner sleeve, the inner sleeve is sleeved with the epoxy plate frame, the elastic column is communicated with the inner sleeve, and one end of the elastic column is located in the connecting column.
Preferably, still include the elastic component, the elastic component includes first elastic plate, spring, second elastic plate, movable rod and spacing seat, first elastic plate is connected the electricity core support, the one end fixed connection of spring to on the first elastic plate, the other end fixed connection of spring to on the second elastic plate, spacing seat fixed connection to the upper end of second elastic plate, the one end fixed connection of movable rod to the bottom of first elastic plate, the other end slidable of movable rod is connected to on the spacing seat.
The cylindrical battery pack battery provided by the invention has the beneficial effects that:
be terrace die shaping nickel piece through the nickel piece, the protruding face of terrace die shaping nickel piece better contacts electric core face, and the welding is more firm, can not cause the rosin joint, and on insulating highland barley paper fixed connection to epoxy grillage simultaneously, insulating highland barley paper was located between electric core and the epoxy grillage, and epoxy grillage and insulating highland barley paper are insulated electric core, avoid producing the electric leakage.
Drawings
Fig. 1 is a schematic structural view of a cylindrical battery cell according to the present invention;
fig. 2 is a schematic view illustrating an unfolded structure of a cylindrical battery cell according to the present invention;
fig. 3 is a schematic structural diagram of a nickel plate in a cylindrical battery cell according to the present invention;
fig. 4 is a schematic cross-sectional structural view of a PVC heat shrinkable sleeve in a cylindrical battery cell according to the present invention;
fig. 5 is a schematic cross-sectional view illustrating an elastic member in a cylindrical battery cell according to the present invention.
In the figure: the battery comprises a battery core 1, a battery core support 2, a circuit board 3, a nickel sheet 4, a terminal wire 5, insulating highland barley paper 6, a sponge pad 7, an epoxy plate frame 8, a PVC heat shrinkable sleeve 9, a trademark layer 10, an elastic piece 11, an outer sleeve 91, a connecting column 92, an inner sleeve 93, an elastic column 94, a first elastic plate 111, a spring 112, a second elastic plate 113, a movable rod 114 and a limiting seat 115.
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.
Example 1
Referring to fig. 1-4, a cylindrical battery pack battery comprises a battery cell 1, a battery cell support 2, a circuit board 3, a nickel sheet 4, a terminal wire 5, insulating highland barley paper 6, an epoxy board frame 8 and a PVC heat shrinkable sleeve 9, wherein:
the battery core 1 is fixedly connected to the battery core support 2, the battery core support 2 is used for supporting the battery core 1, the circuit board 3 is fixedly connected to the battery core 1, the nickel sheet 4 is fixedly connected to the bottom end of the battery core 1, the nickel sheet 4 is a male die-formed nickel sheet, the terminal wire 5 is connected to the circuit board 3, the terminal wire 5 is conveniently connected with an external structure, the epoxy plate frame 8 is fixedly connected to the outer side of the battery core 1, the epoxy plate frame 8 is used for wrapping the battery core 1 to protect the battery core 1, the terminal wire 5 is fixedly connected with a sealing ring through the epoxy plate frame 8, the sealing ring is used for sealing a gap between the terminal wire 5 and the epoxy plate frame 8, the sealing ring is positioned at the contact part of the terminal wire 5 and the epoxy plate frame 8, the battery core 1 is fixedly connected with a sponge pad 7 for protecting the circuit board 3, the sponge pad 7 and the circuit board 3 are positioned at the same side, when the battery core is wrapped and fixed through the epoxy plate frame 8, the circuit board 3 is protected by the sponge pad 7, the insulating highland barley paper 6 is fixedly connected to the epoxy plate frame 8, the insulating highland barley paper 6 is used for isolating the electric core 1 and avoiding generating electric leakage, the insulating highland barley paper 6 is located between the electric core 1 and the epoxy plate frame 8, the PVC heat shrinkable sleeve 9 is sleeved on the epoxy plate frame 8, the PVC heat shrinkable sleeve 9 is used for protecting the electric core 1, and the PVC heat shrinkable sleeve 9 is sprayed with the trademark layer 10.
Example 2
Referring to fig. 1-4, as another preferred embodiment of the present invention, the difference from embodiment 1 is that the PVC heat shrinkable sleeve 9 includes an outer sleeve 91, a connection post 92, an inner sleeve 93 and an elastic post 94, one end of the connection post 92 is fixedly connected to the outer sleeve 91, the connection post 92 is used for fixing the outer sleeve 91 and the inner sleeve 93, the other end of the connection post 92 is fixedly connected to the inner sleeve 93, a gap is provided between the outer sleeve 91 and the inner sleeve 93, so that the collision strength can be effectively reduced during collision, the inner sleeve 93 is sleeved with the epoxy board frame 8, the elastic post 94 is communicated with the inner sleeve 93, and one end of the elastic post 94 is located in the connection post 92.
Example 3
Referring to fig. 1 to 5, as another preferred embodiment of the present invention, the battery module further includes an elastic member 11 on the basis of embodiment 1, the elastic member 11 is configured to reduce the vibration strength received by the battery cell 1, the elastic member 11 includes a first elastic plate 111, a spring 112, a second elastic plate 113, a movable rod 114 and a limiting seat 115, the first elastic plate 111 is connected to the battery cell support 2, one end of the spring 112 is fixedly connected to the first elastic plate 111, the spring 112 is configured to connect the first elastic plate 111 and the second elastic plate 113, the other end of the spring 112 is fixedly connected to the second elastic plate 113, the limiting seat 115 is fixedly connected to the upper end of the second elastic plate 113, the limiting seat 115 is configured to limit the movable rod 114, one end of the movable rod 114 is fixedly connected to the bottom end of the first elastic plate 111, the other end of the movable rod 114 is slidably connected to the limiting seat 115, when a collision occurs, the first elastic plate 111 and the second elastic plate 113 move towards each other, the spring 112 is pressed to generate an elastic force, the elastic force generated by the spring 112 hinders the movement of the first elastic plate 111 and the second elastic plate 113, and the vibration is offset by the elastic force generated by the spring 112, so that the battery cell 1 can be effectively protected.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a cylinder battery pack battery, its characterized in that includes electric core (1), electric core support (2), circuit board (3), nickel piece (4), terminal line (5), insulating highland barley paper (6), epoxy grillage (8) and PVC thermal shrinkable sleeve (9), wherein:
electric core (1) fixed connection to on electric core support (2), circuit board (3) fixed connection to on electric core (1), nickel piece (4) fixed connection to the bottom of electric core (1), nickel piece (4) are terrace die shaping nickel piece, terminal line (5) are connected to on circuit board (3), epoxy grillage (8) fixed connection to the outside of electric core (1), terminal line (5) pass through epoxy grillage (8), insulating highland barley paper (6) fixed connection to on epoxy grillage (8), insulating highland barley paper (6) are located electric core (1) with between epoxy grillage (8), PVC pyrocondensation cover (9) cup joint extremely on epoxy grillage (8).
2. Cylindrical battery cell according to claim 1, characterized in that a sealing ring is fixedly connected to the epoxy plate frame (8), which sealing ring is located at the contact of the terminal wire (5) and the epoxy plate frame (8).
3. Cylindrical battery cell according to claim 1, characterised in that a sponge mat (7) for protecting the circuit board (3) is fixedly connected to the electrical core (1).
4. Cylindrical battery cell according to claim 1, characterized in that the PVC heat shrink sleeve (9) is coated with a label layer (10).
5. The cylindrical battery cell as claimed in claim 1, wherein the PVC heat shrinkable sleeve (9) comprises an outer sleeve (91), a connection column (92), an inner sleeve (93) and an elastic column (94), one end of the connection column (92) is fixedly connected to the outer sleeve (91), the other end of the connection column (92) is fixedly connected to the inner sleeve (93), the inner sleeve (93) is sleeved on the epoxy plate frame (8), the elastic column (94) is communicated with the inner sleeve (93), and one end of the elastic column (94) is located in the connection column (92).
6. The cylindrical battery cell according to claim 1, further comprising an elastic member (11), wherein the elastic member (11) comprises a first elastic plate (111), a spring (112), a second elastic plate (113), a movable rod (114), and a limiting seat (115), the first elastic plate (111) is connected to the cell holder (2), one end of the spring (112) is fixedly connected to the first elastic plate (111), the other end of the spring (112) is fixedly connected to the second elastic plate (113), the limiting seat (115) is fixedly connected to the upper end of the second elastic plate (113), one end of the movable rod (114) is fixedly connected to the bottom end of the first elastic plate (111), and the other end of the movable rod (114) is slidably connected to the limiting seat (115).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111009331.8A CN113707981A (en) | 2021-08-31 | 2021-08-31 | Cylindrical battery pack battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111009331.8A CN113707981A (en) | 2021-08-31 | 2021-08-31 | Cylindrical battery pack battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113707981A true CN113707981A (en) | 2021-11-26 |
Family
ID=78657574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111009331.8A Pending CN113707981A (en) | 2021-08-31 | 2021-08-31 | Cylindrical battery pack battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113707981A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203826464U (en) * | 2014-03-24 | 2014-09-10 | 山东精工电子科技有限公司 | Spot-welding-free battery pack |
| CN206210971U (en) * | 2016-10-17 | 2017-05-31 | 深圳市迪凯能科技有限公司 | For the protection board structure of lithium battery |
| CN206353566U (en) * | 2016-12-27 | 2017-07-25 | 天津先众新能源科技股份有限公司 | A kind of stacked combination formula cylindrical lithium ion battery group |
| CN207852766U (en) * | 2018-02-11 | 2018-09-11 | 量道（厦门）新能源科技有限公司 | A kind of battery pack of energy-storage battery |
| CN208111554U (en) * | 2018-02-02 | 2018-11-16 | 深圳市朗能电池有限公司 | Electronic box and its battery pack |
| CN208797055U (en) * | 2018-07-27 | 2019-04-26 | 襄阳信达汇通机械有限公司 | A kind of bracket of new energy car battery |
| US10714792B1 (en) * | 2019-12-12 | 2020-07-14 | Shenzhen Oriental Willing New Energy Co., Ltd | Integrally-formed rechargeable battery and production method thereof |
| CN212380870U (en) * | 2020-01-10 | 2021-01-19 | 苏州市鑫联冷热缩科技有限公司 | Flame-retardant double-color heat-shrinkable sleeve |
| CN213712320U (en) * | 2020-11-11 | 2021-07-16 | 湖北至正橡塑新材料股份有限公司 | Special heat-shrinkable sleeve for automobile oil pipe |
-
2021
- 2021-08-31 CN CN202111009331.8A patent/CN113707981A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203826464U (en) * | 2014-03-24 | 2014-09-10 | 山东精工电子科技有限公司 | Spot-welding-free battery pack |
| CN206210971U (en) * | 2016-10-17 | 2017-05-31 | 深圳市迪凯能科技有限公司 | For the protection board structure of lithium battery |
| CN206353566U (en) * | 2016-12-27 | 2017-07-25 | 天津先众新能源科技股份有限公司 | A kind of stacked combination formula cylindrical lithium ion battery group |
| CN208111554U (en) * | 2018-02-02 | 2018-11-16 | 深圳市朗能电池有限公司 | Electronic box and its battery pack |
| CN207852766U (en) * | 2018-02-11 | 2018-09-11 | 量道（厦门）新能源科技有限公司 | A kind of battery pack of energy-storage battery |
| CN208797055U (en) * | 2018-07-27 | 2019-04-26 | 襄阳信达汇通机械有限公司 | A kind of bracket of new energy car battery |
| US10714792B1 (en) * | 2019-12-12 | 2020-07-14 | Shenzhen Oriental Willing New Energy Co., Ltd | Integrally-formed rechargeable battery and production method thereof |
| CN212380870U (en) * | 2020-01-10 | 2021-01-19 | 苏州市鑫联冷热缩科技有限公司 | Flame-retardant double-color heat-shrinkable sleeve |
| CN213712320U (en) * | 2020-11-11 | 2021-07-16 | 湖北至正橡塑新材料股份有限公司 | Special heat-shrinkable sleeve for automobile oil pipe |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211126 |
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| RJ01 | Rejection of invention patent application after publication |