CN108336268B - Lithium battery shell and lithium battery using same - Google Patents
Lithium battery shell and lithium battery using same Download PDFInfo
- Publication number
- CN108336268B CN108336268B CN201810157129.1A CN201810157129A CN108336268B CN 108336268 B CN108336268 B CN 108336268B CN 201810157129 A CN201810157129 A CN 201810157129A CN 108336268 B CN108336268 B CN 108336268B
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- lithium battery
- inner chamber
- wall
- same
- lithium
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 104
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 239000010410 layer Substances 0.000 claims abstract description 17
- 239000011229 interlayer Substances 0.000 claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 37
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- 239000011889 copper foil Substances 0.000 claims description 18
- 238000003466 welding Methods 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims 1
- 150000002641 lithium Chemical class 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
-
- 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
-
- 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
- H01M50/572—Means for preventing undesired use or discharge
-
- 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)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a lithium battery shell and a lithium battery using the shell, and the lithium battery shell comprises a main body and a lithium battery, wherein an upper inner chamber is arranged at the upper end inside the main body, a bottom groove is arranged at the bottom end of the upper inner chamber, insections are fixed on the upper wall of the bottom groove, an interlayer is arranged below the upper inner chamber, the outer wall of the interlayer is connected with a fixture block, a lower inner chamber is arranged below the interlayer, a mounting angle is fixed at the upper end of the inner wall of the lower inner chamber, a thread is arranged inside the mounting angle, a top layer is arranged outside the mounting angle, the middle section of the top layer is connected with a rubber mat, grooves are arranged on the front outer wall and the rear outer wall of the lithium battery, the lithium battery is positioned at the upper end of. This lithium battery shell and lithium cell that uses this shell are provided with kerve and insection, settle the lithium cell that can be fine through the kerve, and let the lithium cell more stable of settling at the kerve through the kerve, prevent that its bottom from taking place to slide.
Description
Technical Field
The invention relates to the technical field of lithium battery devices, in particular to a lithium battery shell and a lithium battery using the shell.
Background
The lithium battery is a battery which uses lithium metal or lithium alloy as a negative electrode material and uses a non-aqueous electrolyte solution, the lithium metal battery is firstly proposed and researched by Gilbert N.Lewis in 1912, and the lithium battery is proposed and researched in the 20 th century 70 s by M.S. Whittngham.
Lithium cell and shell in the market lead to the card to attach not closely enough when using because two shape difference, thereby exist and become flexible, take place the welding point easily and break apart or the bad condition of contact, and the battery can produce high temperature when the time is used mostly, and battery and shell in the market then have the problem that can't in time dispel the heat, for this reason, we propose a card attach connect closely, be convenient for radiating lithium cell shell and use the lithium cell of this shell.
Disclosure of Invention
The invention aims to provide a lithium battery shell and a lithium battery using the shell, and aims to solve the problems that the lithium battery and the shell proposed in the background art are not tightly clamped due to the shape difference, so that the lithium battery is loosened, the welding point is easy to break and crack or poor contact is easy to occur, the battery is frequently high in temperature during use, and the battery and the shell on the market cannot dissipate heat in time.
In order to achieve the purpose, the invention provides the following technical scheme: a lithium battery shell and a lithium battery using the shell comprise a main body and a lithium battery, wherein an upper inner chamber is arranged at the upper end of the inner part of the main body, a bottom groove is arranged at the bottom end of the upper inner chamber, insections are fixed on the upper wall of the bottom groove, an interlayer is arranged below the upper inner chamber, a clamping block is connected to the outer wall of the interlayer, a lower inner chamber is arranged below the interlayer, a mounting angle is fixed at the upper end of the inner wall of the lower inner chamber, a top layer is arranged inside the mounting angle, a rubber pad is connected to the middle section of the top layer, grooves are formed in the front outer wall and the rear outer wall of the lithium battery, the lithium battery is positioned at the upper end of the bottom groove, an extreme is fixed at the top end of the lithium battery, a connector is arranged above the extreme, a copper sheet is arranged inside the connector, a spring is fixed at the bottom, and the perforated below is fixed with the linking copper foil, the upper end of main part is fixed with the top cap, and the screw is all installed at both ends about the top cap.
Preferably, the shape volume of the upper inner chamber is the same as that of the lower inner chamber, and the upper inner chamber and the lower inner chamber are symmetrical about the center of the separation layer.
Preferably, the kerve is fixed connection with the insection, and the area of kerve is greater than the area of lithium cell bottom, and the kerve coincides mutually with the vertical axis of lithium cell moreover.
Preferably, the fixture blocks are provided with 4 groups, each group has 9, and the caliber of the fixture block is smaller than that of the groove.
Preferably, the rubber pad is of a rectangular structure and is connected with the top layer in an adhesive manner.
Preferably, the connector comprises a copper sheet, a spring and a connecting copper foil, the spring, the connecting copper foil and the copper sheet form an integrated structure through welding, and the number of the connectors is 2.
Compared with the prior art, the invention has the beneficial effects that: the lithium battery shell and the lithium battery using the shell are provided with an upper inner chamber and a lower inner chamber, so that two lithium batteries can be conveniently connected and combined for use, the lithium battery shell is provided with a bottom groove and insections, the lithium batteries can be well arranged through the bottom groove, the lithium batteries are more stably arranged in the bottom groove through the bottom groove, the bottom of the lithium batteries is prevented from sliding, the lithium battery shell is provided with 4 groups of 36 fixture blocks, grooves and the fixture blocks on the outer wall of the lithium batteries can be correspondingly connected one by one, the lithium batteries can be well reinforced, the lithium batteries are effectively prevented from loosening to cause poor contact or disconnection of welding points, meanwhile, the high temperature on the lithium batteries can be transmitted to a main body through the fixture blocks through the grooves, the main body is radiated, the lithium batteries can be more quickly radiated, and the rubber pad with a rectangular structure is arranged, and when a top cover is connected with a, increase leakproofness between the two that can be fine, effectually prevent that dust and water droplet from getting into the main part, play fine safeguard effect to the lithium cell, and it is provided with 2 connectors, make when the lid closes the top cap, let it is connected to the lithium cell upper end through perforating to link up the copper foil, the negative pole is served, later the elasticity through the spring, it can closely laminate in the lithium cell upper end just to make to link up the copper foil, the negative pole is served, thereby make just, the current process that the negative pole was served links up the copper foil, the spring transmits to the copper sheet, thereby see through the connector and carry out electrical connection.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the right side view of the main body and the top cover of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention.
In the figure: 1. the main part, 2, go up the inner chamber, 3, kerve, 4, insection, 5, interlayer, 6, fixture block, 7, lower inner chamber, 8, installation angle, 9, screw thread, 10, top layer, 11, cushion, 12, lithium cell, 13, recess, 14, extreme, 15, connector, 16, copper sheet, 17, spring, 18, perforation, 19, linking copper foil, 20, top cap, 21, screw.
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.
Referring to fig. 1-3, the present invention provides a technical solution: a lithium battery shell and a lithium battery using the shell comprise a main body 1, an upper inner chamber 2, a bottom groove 3, insections 4, an interlayer 5, a fixture block 6, a lower inner chamber 7, a mounting angle 8, threads 9, a top layer 10, a rubber mat 11, lithium batteries 12, a groove 13, an electrode 14, a connector 15, copper sheets 16, springs 17, a perforation 18, a joining copper foil 19, a top cover 20 and screws 21, wherein the upper inner chamber 2 is arranged at the upper end inside the main body 1, the bottom end of the upper inner chamber 2 is provided with the bottom groove 3, the upper inner chamber 2 and the lower inner chamber 7 are same in shape and volume and are symmetrical about the center of the interlayer 5, two lithium batteries 12 are conveniently connected and combined for use, the insections 4 are fixed on the upper wall of the bottom groove 3, the bottom groove 3 and the insections 4 are fixedly connected, the area of the bottom groove 3 is larger than the area of the bottom end of each lithium battery 12, and the bottom groove, the lithium battery 12 can be well arranged through the bottom groove 3, the lithium battery 12 is more stably arranged in the bottom groove 3 through the bottom groove 3, the bottom of the lithium battery is prevented from sliding, the interlayer 5 is arranged below the upper inner chamber 2, the outer wall of the interlayer 5 is connected with the clamping block 6, the clamping block 6 is provided with 4 groups, 9 clamping blocks are arranged in each group, the caliber of each clamping block 6 is smaller than that of each groove 13, the grooves 13 in the outer wall of the lithium battery 12 can be correspondingly connected with the clamping blocks 6 one by one, the lithium battery 12 can be well reinforced, the lithium battery 12 is effectively prevented from loosening to cause poor or broken welding point contact, meanwhile, high temperature on the lithium battery 12 can be transmitted to the main body 1 through the clamping blocks 6 through the grooves 13, then the main body 1 is radiated, the lithium battery 12 can be more quickly radiated, the lower inner chamber 7 is arranged below the interlayer 5, and the upper end of the, the inside of installation angle 8 is provided with screw thread 9, and the outside of installation angle 8 is settled there is top layer 10, the middle section of top layer 10 is connected with cushion 11, cushion 11 is the rectangle structure, and it is adhesive connection with top layer 10, through cushion 11, make top cap 20 when being connected with top layer 10 through screw thread 9 and screw 21, can be fine increase the leakproofness between the two, effectively prevent dust and water droplet entering main part 1, play fine guard action to lithium cell 12, lithium cell 12 all is provided with recess 13 around, and lithium cell 12 is located the upper end of kerve 3, the top of lithium cell 12 is fixed with extreme 14, and the top of extreme 14 is provided with connector 15, connector 15 includes copper sheet 16, spring 17 and linking copper sheet 19, and spring 17 constitutes the integral structure through welding with linking copper sheet 19 and copper sheet 16, and connector 15 is provided with 2, make when closing top cap 20 at the lid, let it is connected to lithium cell 12 upper end just to let to link up copper foil 19 see through perforation 18, on the negative pole end 14, later through spring 17's elasticity, make to link up copper foil 19 can closely laminate in lithium cell 12 upper end just, on the negative pole end 14, thereby make just, electric current on the negative pole end 14 is through linking up copper foil 19, spring 17 transmits to copper sheet 16, thereby see through connector 15 and carry out electrical connection, the internally mounted of connector 15 has copper sheet 16, and copper sheet 16's bottom mounting has spring 17, spring 17's the outside is provided with perforation 18, and perforation 18's below is fixed with linking copper foil 19, the upper end of main part 1 is fixed with top cap 20, and screw 21 is all installed at both ends about top cap 20.
The working principle is as follows: to this kind of lithium battery shell and lithium cell that uses this shell, at first settle lithium cell 12 through kerve 3, and let lithium cell 12 settle more stably at kerve 3 through kerve 3, prevent its bottom from taking place to slide, and can let recess 13 on the lithium cell 12 outer wall correspond one by one with fixture block 6 and be connected, can be fine consolidate lithium cell 12, effectually prevent lithium cell 12 from taking place to become flexible and causing welding point contact failure or disconnection, can transmit the high temperature on lithium cell 12 to main part 1 through fixture block 6 through recess 13 simultaneously, main part 1 distributes away again, let lithium cell 12 can be more swift dispel the heat, and can connect two lithium cell 12 through upper inner chamber 2 and lower inner chamber 7 and combine the use, and when closing top cap 20, let link up copper foil 19 see through perforation 18 and be connected to the positive lithium cell 12 upper end, On the negative pole end 14, later through spring 17's elasticity, make to link up copper foil 19 and can closely laminate in the lithium cell 12 upper end just, on the negative pole end 14, thereby make just, electric current on the negative pole end 14 is through linking up copper foil 19, spring 17 transmits to copper sheet 16, thereby see through connector 15 and carry out electrical connection, carry out fixed connection with top cap 20 with top layer 10 through passing through screw thread 9 and screw 21 at last, and the leakproofness between the increase two that can be fine through cushion 11, effectually prevent that dust and water droplet from getting into main part 1, play fine safeguard effect to lithium cell 12, just so accomplish whole lithium cell shell and the use of the lithium cell of this shell.
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 (6)
1. A lithium battery case and a lithium battery using the same, comprising a main body (1) and a lithium battery (12), characterized in that: an upper inner chamber (2) is arranged at the upper end of the inner part of the main body (1), a bottom groove (3) is arranged at the bottom end of the upper inner chamber (2), insections (4) are fixed on the upper wall of the bottom groove (3), an interlayer (5) is installed below the upper inner chamber (2), a clamping block (6) is connected to the outer wall of the interlayer (5), a lower inner chamber (7) is arranged below the interlayer (5), a mounting angle (8) is fixed at the upper end of the inner wall of the lower inner chamber (7), threads (9) are arranged inside the mounting angle (8), a top layer (10) is arranged outside the mounting angle (8), a rubber mat (11) is connected to the middle section of the top layer (10), grooves (13) are formed in the front outer wall and the rear outer wall of the lithium battery (12), the lithium battery (12) is located at the upper end of the bottom groove (3), an extreme end (14) is fixed, and the top of extreme (14) is provided with connector (15), the internally mounted of connector (15) has copper sheet (16), and the bottom mounting of copper sheet (16) has spring (17), the outside of spring (17) is provided with perforation (18), and the below of perforating (18) is fixed with and links up copper foil (19), the upper end of main part (1) is fixed with top cap (20), and screw (21) are all installed at both ends about top cap (20).
2. A lithium battery case and a lithium battery using the same as set forth in claim 1, wherein: the upper inner chamber (2) and the lower inner chamber (7) are the same in shape and volume and are symmetrical about the center of the partition layer (5).
3. A lithium battery case and a lithium battery using the same as set forth in claim 1, wherein: the kerve (3) is fixedly connected with the insection (4), the area of the kerve (3) is larger than that of the bottom end of the lithium battery (12), and the kerve (3) coincides with the vertical central axis of the lithium battery (12).
4. A lithium battery case and a lithium battery using the same as set forth in claim 1, wherein: the fixture blocks (6) are provided with 4 groups, each group is 9, and the caliber of each fixture block (6) is smaller than that of each groove (13).
5. A lithium battery case and a lithium battery using the same as set forth in claim 1, wherein: the rubber pad (11) is of a rectangular structure and is connected with the top layer (10) in an adhesive mode.
6. A lithium battery case and a lithium battery using the same as set forth in claim 1, wherein: the connector (15) comprises copper sheets (16), springs (17) and a connecting copper foil (19), the springs (17), the connecting copper foil (19) and the copper sheets (16) form an integrated structure through welding, and the number of the connectors (15) is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157129.1A CN108336268B (en) | 2018-02-24 | 2018-02-24 | Lithium battery shell and lithium battery using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157129.1A CN108336268B (en) | 2018-02-24 | 2018-02-24 | Lithium battery shell and lithium battery using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108336268A CN108336268A (en) | 2018-07-27 |
| CN108336268B true CN108336268B (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810157129.1A Active CN108336268B (en) | 2018-02-24 | 2018-02-24 | Lithium battery shell and lithium battery using same |
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| CN (1) | CN108336268B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510312A (en) * | 2020-11-09 | 2021-03-16 | 东风汽车集团有限公司 | Power battery box of electric vehicle |
| CN113029205B (en) * | 2021-03-09 | 2022-09-23 | 长沙市日业电气有限公司 | Electromagnetic absolute value multi-ring encoder never losing position |
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| DE202007017390U1 (en) * | 2007-12-11 | 2009-04-16 | Autokühler GmbH & Co. KG | Heat exchanger device for an electrochemical energy store |
| CN201608210U (en) * | 2009-12-21 | 2010-10-13 | 潍坊威能环保电源有限公司 | Lithium-ion battery shell |
| CN201845818U (en) * | 2010-11-05 | 2011-05-25 | 张家港力天新能源科技有限公司 | Assembly module of grid type power batteries |
| CN104124404A (en) * | 2013-04-29 | 2014-10-29 | 株式会社Lg化学 | Battery module comprised in battery pack for motor vehicle |
| CN205069704U (en) * | 2015-09-18 | 2016-03-02 | 陈保朝 | Modular lithium cell case |
| CN206961889U (en) * | 2017-05-22 | 2018-02-02 | 冯斌斌 | A kind of novel lithium battery structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8609274B2 (en) * | 2010-03-24 | 2013-12-17 | Bren-Tronics Batteries International, L.L.C. | Nested heatsink housing for lithium ion cells |
-
2018
- 2018-02-24 CN CN201810157129.1A patent/CN108336268B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007017390U1 (en) * | 2007-12-11 | 2009-04-16 | Autokühler GmbH & Co. KG | Heat exchanger device for an electrochemical energy store |
| CN201608210U (en) * | 2009-12-21 | 2010-10-13 | 潍坊威能环保电源有限公司 | Lithium-ion battery shell |
| CN201845818U (en) * | 2010-11-05 | 2011-05-25 | 张家港力天新能源科技有限公司 | Assembly module of grid type power batteries |
| CN104124404A (en) * | 2013-04-29 | 2014-10-29 | 株式会社Lg化学 | Battery module comprised in battery pack for motor vehicle |
| CN205069704U (en) * | 2015-09-18 | 2016-03-02 | 陈保朝 | Modular lithium cell case |
| CN206961889U (en) * | 2017-05-22 | 2018-02-02 | 冯斌斌 | A kind of novel lithium battery structure |
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| CN108336268A (en) | 2018-07-27 |
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Effective date of registration: 20210120 Address after: 341000 north side of Yongguan Road, industrial park, Xinfeng County, Ganzhou City, Jiangxi Province Applicant after: XINFENG YONGGUAN PLASTIC TECHNOLOGY Co.,Ltd. Address before: 526200 Lixiang village, Gaoshi village committee, Chengzhong District, Sihui City, Zhaoqing City, Guangdong Province (9 Jinfeng market) Applicant before: SIHUI QIDE INFORMATION CONSULTING SERVICE Co.,Ltd. |
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