CN106450128A - Battery group and electrode current piece thereof - Google Patents
Battery group and electrode current piece thereof Download PDFInfo
- Publication number
- CN106450128A CN106450128A CN201610904869.8A CN201610904869A CN106450128A CN 106450128 A CN106450128 A CN 106450128A CN 201610904869 A CN201610904869 A CN 201610904869A CN 106450128 A CN106450128 A CN 106450128A
- Authority
- CN
- China
- Prior art keywords
- pole
- connecting portion
- electrode
- spot welding
- cells
- 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
- 238000003466 welding Methods 0.000 claims abstract description 62
- 238000005452 bending Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 230000004927 fusion Effects 0.000 abstract 3
- 230000000875 corresponding effect Effects 0.000 description 26
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 238000013475 authorization Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910000679 solder Inorganic materials 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to a battery group and an electrode current piece thereof. The electrode current piece of the battery group comprises at least two electrode connection parts which are connected electrically with the electrodes located at the same side of the corresponding single battery cells in the battery group. All the electrode connection parts are connected together electrically through electrode current pieces. At least one electrode connection part comprises a butt welding connection piece electrically connected by welding with the electrode of the corresponding single battery cell and conductive ring pieces placed on the outer circle of the butt welding connection piece in regular intervals. The conductive ring piece and the electrode current piece body are connected electrically. The butt welding connection piece and the conductive ring pieces are connected electrically through a conductive arc arm. The conductive arc arm has an over-current fusion part. The butt welding connection piece and the conductive ring pieces are connected through the conductive arc arm. Moreover the conductive arc arm has the over-current fusion part. In the application the butt welding connection piece is connected electrically by welding with the electrode of the corresponding single battery cell. When the over-current condition appears at the single battery cell, the over-current fusion part fuses to cut off the current for protection.
Description
Technical field
The present invention relates to a kind of set of cells and its pole flow.
Background technology
The research of battery group technology will be accelerated to promote electric automobile, microgrid energy storage, stand-by power supply, portable power source, isolated island storage
The development of the industries such as energy.Scheduling to electrical network plays the effect of key.For example：Peak-frequency regulation, reactive-load compensation, peak load shifting etc..
Battery group technology is the core technology of battery case, and the following key technology for promoting battery energy storage.
If the China that Authorization Notice No. is CN204391184U is using the battery combination for carrying out disclosed in patent, by by leading
The battery module composition of stream copper bar connection, each battery module all includes multiple cylindrical lithium batteries being arranged in juxtaposition, cylinder lithium electricity
Pond in the location hole of carrier parts, the positive pole homonymy of each cylindrical lithium battery, on support, Correspondent cy linder lithium battery is being just
Pole side and negative side are respectively equipped with molding nickel sheet, and the spot welding face in two molding nickel sheet corresponds to positive pole, the negative pole with cylindrical lithium battery
Corresponding spot welding connection, two molding nickel sheet are corresponding to be conductively connected with corresponding conducting copper bus.This battery combination can meet difference
High performance requirements of the industry to battery.
In use, such as in discharge process, easily there is high current such as short circuit or is equipped with high-power use in battery combination
During electrical equipment, often exceed the discharge current bearing value of battery combination, be that battery and electrical equipment is protected, how can external excessively stream guarantor
Protection circuit, when the electric current in whole circuit is excessive, can actively turn off the primary path of set of cells, in case it is even whole to damage battery
Equipment.But, in actual use, as each battery module is realized by the in parallel or connection in series-parallel of multiple single battery cores,
As Authorization Notice No. is paralleling model disclosed in the patent of CN204391184U and Authorization Notice No. for CN202534726U, awards
Connection in series-parallel pattern of the power notification number disclosed in the patent of CN204760452U, battery core is in parallel connection, and battery core in parallel is generally common
Piece is connected in parallel with one, so, when there is internal short-circuit in single battery core or single battery core component there is excessively stream, whole battery
Group still occurs heavy-current discharge problem that excessively stream causes, in addition can cause on fire, and these problems cannot then rely on external
Current foldback circuit solve.
Content of the invention
It is an object of the invention to provide a kind of pole flow of the set of cells with overcurrent protection function, to solve existing skill
Set of cells in art generally only arranges external current foldback circuit to be caused effectively to cut off when excessively stream occurs in single battery core
The problem of circuit；Meanwhile, the present invention also provides a kind of set of cells using above-mentioned pole flow.
For achieving the above object, the technical scheme of the pole flow of set of cells provided by the present invention is：A kind of set of cells
Pole flow, including the electrode connecting portion of the electrodes conduct connection of the same side of at least two single battery cores corresponding to set of cells,
Each electrode connecting portion is conductively connected by pole flow body, and at least one electrode connecting portion includes the electrode with corresponding single battery core
Spot welding connection sheet and be spaced the conductive ring plate that encloses on the outside of the spot welding connection sheet, conductive ring plate and institute that corresponding welding is electrically connected
State pole flow body to be conductively connected, spot welding connection sheet is electrically connected by arc conductive arm with conductive ring plate, is had on arc conductive arm
Excessively stream fuse part.
The arc conductive arm is evenly equipped with two along spot welding connecting portion is circumferentially-spaced.
The pole flow body is provided with for pole flow is corresponded to the location structure that positioning is assemblied in the set of cells,
Pole flow body by bend elastic piece structure be conductively connected with the electrode connecting portion, pole flow body, bending elastic piece structure with
Electrode connecting portion forms Z-shaped.
The electrode connecting portion includes two positive pole connecting portions and two negative pole connecting portions, two positive pole connecting portions and two negative poles
Connecting portion is corresponding to be arranged in pole flow body both sides, and the positive pole connecting portion has described spot welding connection sheet, conductive ring plate
And arc conductive arm, the negative pole connecting portion includes corresponding with the negative pole of corresponding single battery core to weld the spot welding conducting strip that is electrically connected.
The location structure includes that the center positioning hole being arranged on pole flow body and the positioning that connects with location hole are long
Hole.
The technical scheme of the set of cells using above-mentioned pole flow provided by the present invention is：A kind of set of cells, including at least
One battery module, the battery module has the single battery core of at least two parallel arrangements and by the same side of each single battery core
The pole flow that electrode pair should be conductively connected, the pole flow includes at least two electrode connecting portion and makes each electrode connecting portion conductive even
The pole flow body for connecing, at least one electrode connecting portion includes that the electrode pair with corresponding single battery core should weld the spot welding being electrically connected even
The conductive ring plate on the outside of the spot welding connection sheet is enclosed at contact pin and interval, and conductive ring plate is conductive with the pole flow body even
Connect, spot welding connection sheet is electrically connected by arc conductive arm with conductive ring plate, with excessively stream fuse part on arc conductive arm.
The arc conductive arm is evenly equipped with two along spot welding connecting portion is circumferentially-spaced.
The pole flow body is provided with for pole flow is corresponded to the location structure that positioning is assemblied in the set of cells,
Pole flow body by bend elastic piece structure be conductively connected with the electrode connecting portion, pole flow body, bending elastic piece structure with
Electrode connecting portion forms Z-shaped.
The electrode connecting portion includes two positive pole connecting portions and two negative pole connecting portions, two positive pole connecting portions and two negative poles
Connecting portion is corresponding to be arranged in pole flow body both sides, and the positive pole connecting portion has described spot welding connection sheet, conductive ring plate
And arc conductive arm, the negative pole connecting portion includes corresponding with the negative pole of corresponding single battery core to weld the spot welding conducting strip that is electrically connected.
The location structure includes that the center positioning hole being arranged on pole flow body and the positioning that connects with location hole are long
Hole, the set of cells includes the location-plate of positioning assembling corresponding with the single battery core, and it is fixed with the center that location-plate is provided with
The centralized positioning post of position hole positioning inserting and the positioning convex strip of inserting corresponding with the positioning elongated hole.
The invention has the beneficial effects as follows：In the pole flow of set of cells provided by the present invention, at least one electrode connecting portion
The conductive ring plate on the outside of spot welding connection sheet is enclosed including spot welding connection sheet and interval, spot welding connection sheet passes through arc with conductive ring plate
Shape conductive arm is electrically connected, also, with excessively stream fuse part on arc conductive arm, during use, by spot welding connection sheet and corresponding monomer electricity
The electrode pair of core should be welded and is electrically connected, and when overcurrent condition occurs in single battery core, excessively stream fuse part can be fused automatically, so as to by electric current
Cut-out is to form protection.Also, spot welding connection sheet is arranged in conductive ring plate so that whole connecting portion is more concentrated, and is reduced
Area, and, it is ensured that the size of spot welding connection sheet, the area of spot welding link is effectively ensured.Also, pole provided by the present invention
In flow, coupling and conduction for spot welding connection sheet and conductive ring plate is realized using arc conductive arm, arc conductive arm is along spot welding even
Contact pin is peripherally and outwardly radiated, and can so play preferable cushioning effect, the stress that less fuse part is born, it is to avoid excessively stream fuses
There is unexpected situation about cut-offfing in portion.
Further, arc conductive arm is circumferentially spaced is evenly equipped with two, can balance internal electric field.
Further, flow body in pole is conductively connected with electrode connecting portion by bending elastic piece structure, and, pole flow sheet
Body, bending elastic piece structure and electrode connecting portion formed Z-shaped, by pole flow body positioning be assemblied in set of cells, in single battery core
During vibration, to rushing that solder joint is caused when effectively overcoming single battery core vibration using the bending elastic deformation that formed of elastic piece structure
Hit impact.
Description of the drawings
Fig. 1 is a kind of structural representation of embodiment of set of cells provided by the present invention；
Fig. 2 is the structural representation of pole flow in Fig. 1；
Fig. 3 is the top view of pole flow shown in Fig. 2.
Specific embodiment
Below in conjunction with the accompanying drawings embodiments of the present invention are described further.
The specific embodiment of set of cells provided by the present invention, as shown in Figure 1 to Figure 3, set of cells bag in the present embodiment
The single battery core 2 of multiple parallel arrangements is included, these single battery cores 2 are fixed by upper locating rack 3 and lower locating rack 1, in the present embodiment
Single battery core 2 is transversely disposed with 7 row, and each column single battery core 2 all includes 10 single battery cores, the single battery core of adjacent column same
The polarity difference of the electrode of side, so, in the present embodiment, realized using the pole flow for being arranged in adjacent monomer battery core the same side
The connection in series-parallel arrangement of corresponding single battery core.
Specifically, four adjacent single battery cores 2 are corresponded to by a pole flow 4 and are conductively connected, also, the pole flow
4 are connected with the positive conductive of two single battery cores in four single battery cores and in addition the negative conductive of another single battery core is even
Connect, so, the pole flow 4 is corresponded to includes two positive pole connecting portions 40 and two negative pole connecting portions 42, and pole flow also includes that pole is flowed
Piece body 41, two positive pole connecting portions 40 are conductively connected by pole flow body 41 with two negative pole connecting portions 42, are realized in parallel
The connecting of two positive poles and two in parallel negative poles.
In the present embodiment, adjacent four single battery cores and a pole flow are correspondingly formed a battery module, the present embodiment
In set of cells include multiple battery modules.
In fact, the structure of two positive pole connecting portions 40 of pole flow in the present embodiment is identical, two negative pole connecting portions
42 structure is identical, and two positive pole connecting portions 40 and two negative pole connecting portions 42 are corresponding is arranged in 41 both sides of pole flow body.
Positive pole connecting portion 40 and negative pole connecting portion 42 in pole flow 4 is respectively by bending elastic piece structure 45 and pole flow sheet
Body 41 is conductively connected, and, pole flow body 41, bending elastic piece structure 45 and corresponding electrode connecting portion form Z-shaped.
In the present embodiment, positive pole connecting portion 40 includes the spot welding connection welding be electrically connected corresponding with the positive pole of corresponding single battery core
The conductive ring plate 47 located at 49 outside of spot welding connection sheet is enclosed at piece 49 and interval, and spot welding connection sheet 49 passes through arc with conductive ring plate 47
Conductive arm 48 is electrically connected, and arc conductive arm 48 is evenly equipped with two along spot welding connecting portion is circumferentially-spaced, on each arc conductive arm 48 point
Ju You not excessively stream fuse part 46.
Negative pole connecting portion 42 includes the spot welding conducting strip that weld be electrically connected corresponding with the negative pole of corresponding single battery core.
It should be noted that for convenience of welding, in the spot welding connection sheet 49 and negative pole connecting portion 42 on positive pole connecting portion 40
Spot welding conducting strip be circular configuration, and be respectively equipped with I shape engraved structure.
Being provided with the pole flow body 41 of pole flow 4 determining for the set of cells is assemblied in for pole flow is corresponded to positioning
Location structure on the plate of position, the location structure is specifically included the center positioning hole 43 being arranged on pole flow body and is determined with center
Two positioning elongated holes 44 being arranged symmetrically that position hole 43 connects, accordingly, it is fixed with center to be then provided with the location-plate of set of cells
The centralized positioning post of position hole positioning inserting and the positioning convex strip with positioning the correspondings inserting of elongated hole, using centralized positioning post and determine
Position raised line realizes the positioning to pole flow.
In the present embodiment, using the arc conductive arm 48 on the positive pole connecting portion 40 of pole flow 4 realize conductive ring plate 47 with
Being conductively connected for spot welding connection sheet 49, realizes overcurrent protection by arranging excessively stream fuse part 46 on arc conductive arm 48.Root
According to the excessively stream coefficient for setting, the overflow section area of fuse part is chosen, if the electric current for passing through in single battery core exceedes positive normal open
Stream size, excessively stream fuse part can be fused at once to isolate corresponding single battery core, and then ensures whole set of cells, played effectively
Overcurrent protection.
In the present embodiment, the conduction between corresponding connecting portion and pole flow body 41 is realized using bending elastic piece structure 45
Connection, both ensure that bonding area, can alleviate vibration, the impact of impact butt welding contact again using elastic piece structure.
In the present embodiment, it is only that positive pole connecting portion includes spot welding connection sheet, conductive ring plate and the arc with excessively stream fuse part
Shape conductive arm, negative pole connecting portion only has spot welding conducting strip, and in design, spot welding conducting strip is identical with the structure of spot welding connection sheet,
Can also be in the sheathed conduction ring plate in the spot welding conducting strip of negative pole connecting portion periphery, and by arc with excessively stream fuse part conduction
The conductive ring plate of arm realization is conductively connected with spot welding conducting strip, and then realizes overcurrent protection.
In the present embodiment, pole flow corresponds to the connection in series-parallel connection for realizing four single battery cores, and in other embodiments, pole is flowed
Piece also can achieve the serial or parallel connection of two single battery cores, it is also possible to realize the connection in series-parallel arrangement of three single battery cores.Certainly, such as
Fruit, equally can profit when the negative or positive electrode of the single battery core in a battery module even a set of cells is located at the same side
Being arranged in parallel for all single battery cores is realized with this pole flow.
The present invention also provides a kind of embodiment of the pole flow of set of cells, the structure of the pole flow in the embodiment with above-mentioned
The structure of the pole flow of set of cells is identical, and here is no longer excessively repeated.
Claims (10)
1. the pole flow of a kind of set of cells, including the electrodes conduct of the same side of at least two single battery cores corresponding to set of cells
The electrode connecting portion of connection, each electrode connecting portion is conductively connected by pole flow body, it is characterised in that：At least one electrode is even
Socket part includes that should be welded the spot welding connection sheet being electrically connected and interval is enclosed with the electrode pair of corresponding single battery core and be connected located at the spot welding
Conductive ring plate on the outside of piece, conductive ring plate is conductively connected with the pole flow body, and spot welding connection sheet passes through arc with conductive ring plate
Shape conductive arm is electrically connected, with excessively stream fuse part on arc conductive arm.
2. the pole flow of set of cells according to claim 1, it is characterised in that：The arc conductive arm is along spot welding connecting portion
Circumferentially-spaced it is evenly equipped with two.
3. the pole flow of set of cells according to claim 1 and 2, it is characterised in that：The pole flow body is provided with use
In pole flow is corresponded to the location structure that positioning is assemblied in the set of cells, flow body in pole is by bending elastic piece structure and institute
State electrode connecting portion to be conductively connected, pole flow body, bending elastic piece structure and electrode connecting portion form Z-shaped.
4. the pole flow of set of cells according to claim 3, it is characterised in that：The electrode connecting portion includes two positive poles
Connecting portion and two negative pole connecting portions, two positive pole connecting portions and two negative pole connecting portions are corresponding to be arranged in pole flow body both sides,
The positive pole connecting portion has described spot welding connection sheet, conductive ring plate and arc conductive arm, the negative pole connecting portion include with
The negative pole of corresponding single battery core corresponds to the spot welding conducting strip that welding is electrically connected.
5. the pole flow of set of cells according to claim 3, it is characterised in that：The location structure includes to be arranged at pole stream
Center positioning hole on piece body and the positioning elongated hole for connecting with location hole.
6. a kind of set of cells, including at least one battery module, the battery module has the monomer electricity of at least two parallel arrangements
Core and the pole flow that should be conductively connected the electrode pair of the same side of each single battery core, the pole flow includes at least two electrodes even
Socket part and the pole flow body for being conductively connected each electrode connecting portion, it is characterised in that：At least one electrode connecting portion include with
The electrode pair of corresponding single battery core should weld the spot welding connection sheet being electrically connected and leading on the outside of the spot welding connection sheet is enclosed at interval
Electric ring plate, conductive ring plate is conductively connected with the pole flow body, and spot welding connection sheet is with conductive ring plate by arc conductive arm electricity
Even, with excessively stream fuse part on arc conductive arm.
7. set of cells according to claim 6, it is characterised in that：The arc conductive arm is circumferentially-spaced along spot welding connecting portion
It is evenly equipped with two.
8. the set of cells according to claim 6 or 7, it is characterised in that：The pole flow body is provided with for flowing pole
Piece corresponds to the location structure that positioning is assemblied in the set of cells, and flow body in pole is by bending elastic piece structure with the electrode even
Socket part is conductively connected, and pole flow body, bending elastic piece structure and electrode connecting portion form Z-shaped.
9. set of cells according to claim 8, it is characterised in that：The electrode connecting portion include two positive pole connecting portions and
Two negative pole connecting portions, two positive pole connecting portions and two negative pole connecting portions are corresponding to be arranged in pole flow body both sides, the positive pole
Connecting portion has described spot welding connection sheet, conductive ring plate and arc conductive arm, and the negative pole connecting portion includes and corresponding monomer
The negative pole of battery core corresponds to the spot welding conducting strip that welding is electrically connected.
10. set of cells according to claim 8, it is characterised in that：The location structure includes to be arranged at pole flow body
On center positioning hole and the positioning elongated hole for connecting with location hole, the set of cells include corresponding with the single battery core positioning dress
The location-plate that joins, location-plate is provided with the centralized positioning post of center positioning hole positioning inserting and positions elongated hole pair with described
Answer the positioning convex strip of inserting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610904869.8A CN106450128A (en) | 2016-10-18 | 2016-10-18 | Battery group and electrode current piece thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610904869.8A CN106450128A (en) | 2016-10-18 | 2016-10-18 | Battery group and electrode current piece thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106450128A true CN106450128A (en) | 2017-02-22 |
Family
ID=58176100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610904869.8A Pending CN106450128A (en) | 2016-10-18 | 2016-10-18 | Battery group and electrode current piece thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106450128A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256519A (en) * | 2018-11-14 | 2019-01-22 | 江苏芯界新能源科技有限公司 | Lithium battery confluence sheet devices and its method |
| CN110556503A (en) * | 2018-05-31 | 2019-12-10 | 加百裕工业股份有限公司 | Battery guide sheet structure |
| CN110832670A (en) * | 2017-08-29 | 2020-02-21 | 三洋电机株式会社 | Battery pack and method for manufacturing same |
| CN114188196A (en) * | 2021-11-26 | 2022-03-15 | 星恒电源股份有限公司 | Pulling force current-limiting protector and lithium battery module |
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Application publication date: 20170222 |