CN115663406A - Battery cell adapter, battery cell stack and non-module battery pack - Google Patents
Battery cell adapter, battery cell stack and non-module battery pack Download PDFInfo
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- CN115663406A CN115663406A CN202211421644.9A CN202211421644A CN115663406A CN 115663406 A CN115663406 A CN 115663406A CN 202211421644 A CN202211421644 A CN 202211421644A CN 115663406 A CN115663406 A CN 115663406A
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- 238000005452 bending Methods 0.000 claims 2
- 230000002708 enhancing effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 230000010354 integration Effects 0.000 abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 230000005611 electricity Effects 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
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- 229910052759 nickel Inorganic materials 0.000 description 4
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- 238000005476 soldering Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 229920000642 polymer Polymers 0.000 description 1
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
-
- 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
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
-
- 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)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery cell adapter, a battery cell stack and a non-module battery pack, and belongs to the field of battery manufacturing. The battery cell adapter is used for connecting the battery cells in series and/or in parallel to the sampling integrated assembly, and comprises a first connecting portion and a second connecting portion which are intersected, wherein the second connecting portion is used for electrically connecting the battery cells, and the first connecting portion is used for electrically connecting the sampling integrated assembly to form series connection/parallel connection of the battery cells. The electric core stack is formed by stacking a plurality of electric cores, and each electric core is electrically connected with the electric core adaptor. Its box of no module battery package and the sealed equipment of case lid, the box is inside to include: the electrical core stacks are adhered inside the box body, and the adapters on two adjacent electrical core stacks are arranged in parallel and/or oppositely; and the sampling integrated assembly is electrically connected with the adaptor and leads out the anode and the cathode of the battery. The invention has simple structure, can effectively improve the integration efficiency of the battery pack and improve the energy density of the battery pack; the production flow is shortened, the production efficiency is greatly improved, and the production cost is reduced.
Description
Technical Field
The invention relates to the field of battery manufacturing, in particular to a battery cell adapter, a battery cell stack and a module-free battery pack.
Background
Lithium ion batteries have evolved rapidly since the last 90 s. Has become an indispensable energy storage device in modern society. In recent years, with the successive national and regional governments coming out of a series of relevant policies for supporting and promoting the development of electric vehicles, people have shifted their ideas on electric vehicles, and the electric vehicle industry has started to get hot. However, as the energy density of the electric vehicle is higher and higher, the existing battery grouping technology cannot meet the customer requirements.
For example, a patent application with chinese patent application No. 202010755286.X, published as 2021, 2 months and 23 days, discloses a soft-package modular power battery system. This battery system includes fixed connection's upper cover and lower box subassembly, be equipped with battery management system, depression bar subassembly, low pressure pencil, soft-packaged electricity core subassembly, high-voltage electricity subassembly, beam assembly and liquid cooling system between upper cover and the lower box subassembly from top to bottom in proper order, this no modular structure, soft-packaged electricity core is directly integrated to the battery box in. However, a plurality of steel pressure bar assemblies are additionally arranged, and compared with the traditional module aluminum shell, the weight is not reduced; the structure of the electric core assembly is not introduced, and as shown in fig. 3 and the description of the electric core assembly, the fireproof materials are wrapped around the electric core assembly, so that the density of the fireproof materials with high reliability can reach 2g/cm 3 Density of approximately 2.7g/cm for aluminum 3 Although the document has no traditional module aluminum shell, the extra material of the document still needs much weight and the cost is not advantageous; finally, the soft-packaged electric core group only uses the elastic pressure bar component to limit the Z degree of freedom of the electric core, so that the electric core is not effectively fixed, and the structure form of the electric core is extremely easy to damage.
Chinese patent application No. 201910544975.3, the filing date of which is 2020, 7 and 17, discloses a battery pack without a module frame, a vehicle and an energy storage device. The battery pack includes: a battery pack housing; each single battery is provided with a battery shell, a battery core arranged in the battery shell and a leading-out terminal which is connected with the battery core and extends out of the battery shell, and the plurality of single batteries are arranged in the battery pack shell. However, it only describes various arrangements of different sized battery cells in a Pack, which are common in a typical battery Pack, and in some examples, the structural features of conventional modules, such as end plates, side plates, upper and lower module housings, etc., are retained.
Chinese patent application No. 202010075473.3, the patent application publication of filing date is 2020, 6 months and 12 days discloses a no module laminate polymer battery system, includes: the battery pack comprises a lower box body and an upper cover matched with the lower box body, wherein a first fixing module, a second fixing module, a battery cell module, a baffle, an acquisition module and a control module are arranged in the lower box body; the first fixing module and the second fixing module are both provided with grooves, and the battery cell module is arranged in the groove of the first fixing module and the groove of the second fixing module; the baffle is connected with the battery cell module in an abutting mode; the acquisition module is connected with the battery cell module and is used for acquiring temperature information and voltage information of the battery cell module; the control module is connected with the acquisition module and receives the temperature information and the voltage information of the acquisition module. However, although the module metal shell is removed, too many scattered parts are added, so that the difficulty of grouping the system is increased; moreover, the soft-packaged battery cell is weak in rigidity and lacks of shell support, so that the Pack strength is low; and finally, the soft package battery core is damaged, and after the damage and leakage occur in production, the whole package cannot be effectively processed, so that the whole package is scrapped.
Therefore, it is a technical problem to be solved urgently to develop how to design and form a module-free battery pack with excellent performance.
Disclosure of Invention
1. Problems to be solved
Aiming at the problem of excessive components of the conventional module-free battery pack, the purpose of series connection and/or parallel connection of the battery cells is realized by designing a battery cell adapter sheet. Then, the special structure of the cell adapter sheet is utilized to assemble a cell stack so as to achieve the purpose of simplifying the structure. Finally, the invention also utilizes the electric core stack to obtain the battery pack without the module, and improves the energy density of the battery pack on the basis of the existing battery pack.
2. Technical scheme
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the utility model provides a battery cell adaptor for establish ties and/or parallelly connected to sampling integrated component with the battery cell, includes crossing first connecting portion and second connecting portion, wherein, the second connecting portion are used for the electricity to connect the battery cell, and first connecting portion are used for the electricity to connect sampling integrated component to form the series connection/parallelly connected of battery cell.
Further, still include transition portion, transition portion is in first connecting portion and second connecting portion junction to form and buckle or crooked structure, in order to avoid direct contact electric core, receive when striking in using to electric automobile, be used for sharing the impact force, simultaneously, reduce and contact electric core area, increase battery energy density.
The cell adaptor is applied to the manufacture of a module-free cell stack, namely:
the utility model provides an electricity core is piled up by a plurality of electricity core and is formed, and foretell adaptor is all connected to every electricity core. Wherein: the electric core is preferably an aluminum shell electric core with two side pole outlets, the pole outlets on the two sides are arranged side by side, and the adaptor is welded respectively. It should be noted that, the battery cell may also be directed at a one-stop battery and a soft package of the medium navigation, but the matching structure of the soft package is much more complicated, and the soft package battery cell is thinner, so that there is a disadvantage in using the above battery cell adaptor to connect the overcurrent of the aluminum busbar.
And furthermore, adjacent cells are bonded through spacers. The spacer is a sheet material with compression performance, such as foam, rubber pad, aerogel and the like; or sheet-like insulating materials, e.g. PC sheets, PP sheets, etc
Furthermore, the side plates are respectively bonded at the starting end and the terminating end of the stack, and the injection-molded plastic part has a functional structure. The cell stack is only provided with the side plates which are respectively bonded at the starting end and the terminating end, and the side plates are injection-molded parts without other weight-increasing structural parts; simultaneously, the electric core stack is adhered to the bottom of the inner side of the box body through the heat conducting structure, and a plurality of reinforcing pieces are arranged in the box body, so that the fixation of the electric core and the structural strength of the box body are guaranteed.
The invention not only elaborates the layout form of the module-free battery core stack, but also elaborates the novel structure form of serial and/or parallel connection of the battery cores, and the structure form not only can reduce the number of elements of the battery cores integrated into the Pack and reduce the weight of the Pack, but also can greatly improve the production efficiency. Namely:
a battery pack without module is composed of a case body, a case cover, a bolt, a sealing part and a sealing ring. The box is inside to include:
the electrical core stacks are adhered inside the box body, and the adapters on two adjacent electrical core stacks are arranged in parallel and/or oppositely; and adhering the battery cell stack to the bottom of the inner side of the box body by using heat-conducting structural adhesive.
The sampling integrated assembly is arranged at the top of the electric core stack, and is electrically connected with the adaptor to lead out the anode and the cathode of the battery:
when the positive and negative electrodes of the plurality of cell stacks are arranged in the box body side by side, the switching pieces on the cell stacks are arranged side by side, and the cell stacks are converged to the sampling integrated assembly by electrically connecting the switching pieces of the adjacent cell stacks to form a non-module battery;
when the positive and negative electrodes of the plurality of cell stacks are arranged in the box body in parallel, the switching pieces on the adjacent cell stacks are oppositely arranged, and all the switching pieces are electrically connected to the sampling integrated assembly to form a non-module battery; it is worth noting that the cell stack is preferably arranged in a single layer, and if the cell stack is arranged in a multilayer cell stack, in order to enhance the fixing strength during assembly, the cell stack is required to be connected in series by using a busbar and locked by using a bolt.
Furthermore, the box body is divided into a plurality of spaces by a plurality of supporting pieces for installing the electric core stack, wherein the supporting pieces are used for overlapping/fixedly connecting the adaptor on one hand, wherein overlapping means that the adaptor is placed on the supporting pieces, and the adaptor can be adhered and fixed on the supporting pieces for firm connection; on the other hand, the supporting piece has the insulating protection effect on the box body.
The supporting member can be a plate-shaped structure or a frame structure, namely, the supporting member is a supporting frame which is formed by splicing a plurality of thin plate-shaped or sheet-shaped structures and is provided with holes. When the supporting piece is of a frame structure, on one hand, the weight of the box body is reduced, and on the other hand, heat dissipation is facilitated.
Furthermore, a plurality of reinforcing parts are integrally formed in the box body and used for reinforcing the strength of the box body. Meanwhile, the supporting piece is fixedly arranged on the height direction of the reinforcing piece, the reinforcing piece has a certain height, and if the height of the reinforcing piece is H and the height of the battery cell is W, the relation is that H is more than or equal to 0.3W and less than or equal to 0.9W.
Furthermore, the bottom of the support piece is designed into an inverted U-shaped mounting part, the U-shaped mounting part is erected on the reinforcing piece, and meanwhile the U-shaped mounting part can be connected through gluing, so that the connection stability is guaranteed.
Further, the box is a Pack box.
Furthermore, the sampling integration assembly is electrically connected with the adaptor through a bus bar, and adjacent cell stacks are converged to the same bus bar.
Furthermore, a plurality of temperature acquisition pieces are further installed on the sampling integrated assembly.
Further, the electrical connections described above may all be achieved using laser welding.
According to the invention, through the integrated design of the sampling integrated assembly electrically connected with the adaptor, the number of the whole package of parts is reduced by 30%, and the production efficiency is effectively improved; meanwhile, due to the design of the supporting piece and the beam inside the box body, the structural strength of the Pack is guaranteed.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, the plastic side plates are only bonded at the starting end and the terminating end of the cell stacks, so that the use of structural members is reduced, and the design of the electric connection adaptor and the support piece reduces the distance between the adjacent cell stacks, so that more energy can be put into the whole cell, the integration efficiency of the cell pack is effectively improved, the energy density of the cell pack is improved, meanwhile, the arrangement of the reinforcement piece is enhanced, and the structural strength of a module-free system is ensured;
(2) The integrated design of the sampling integrated assembly and the electric connection adapter reduces the number of the whole package of parts by 30 percent, effectively improves the production efficiency, shortens the production flow and reduces the production cost.
Drawings
Fig. 1 is an exploded view of one embodiment of a non-modular battery pack in accordance with the present invention;
figure 2 is an exploded view of a cell stack according to the present invention;
FIG. 3 is a schematic structural view of one embodiment of a connector of the present invention;
FIG. 4 is a schematic structural view of another embodiment of a connector of the present invention;
FIG. 5 is a schematic structural diagram of one embodiment of a sampling assembly according to the present invention;
FIG. 6 is a schematic view from a first perspective of one manner of mounting the electrical core stack of the present invention on a housing;
FIG. 7 is an enlarged view of a portion of area A of FIG. 6;
FIG. 8 is an enlarged view of a portion of the area B in FIG. 6;
FIG. 9 is a schematic view from a second perspective of one manner of mounting the electrical core stack of the present invention on a housing;
FIG. 10 is an enlarged view of a portion of the area C in FIG. 9;
FIG. 11 is an enlarged view of a portion of the area D in FIG. 9;
FIG. 12 is an enlarged view of a portion of the area E in FIG. 9;
FIG. 13 is an enlarged view of a portion of the area F in FIG. 9;
FIG. 14 is an enlarged view of a portion of the area J in FIG. 9;
FIG. 15 is a schematic view from a third perspective of one manner of mounting the electrical core stack of the present invention on a housing;
FIG. 16 is an enlarged view of a portion of the area H in FIG. 15;
FIG. 17 is an enlarged view of a portion of the area I in FIG. 15;
fig. 18 is a schematic view of the fitting of the cell connector and the support member according to the present invention;
in the figure:
100. an electrical core stack; 110. an electric core; 120. an adaptor; 121. a first connection portion; 1211. a first connection face; 1212. a support surface; 122. a second connecting portion; 1221. a second connection face; 1222. a limiting surface; 123. a transition section; 130. a spacer; 140. a side plate; 200. a box body; 210. a support member; 220. a reinforcement; 300. sampling the integrated assembly; 310. a bus bar; 320. a temperature acquisition member; 330. a circuit integrated board; 340. a nickel sheet; 350. a plug-in unit; 360. an insulating sheet; 400. a bonding layer; 500. and a box cover.
Detailed Description
The invention is further described with reference to specific embodiments and the accompanying drawings.
Example 1
The cell adaptor in this embodiment is made of a conductive metal material, and includes a first connection portion 121 for electrically connecting the sampling integrated assembly 300 and a second connection portion 122 for electrically connecting the cell 110, where the first connection portion 121 and the second connection portion 122 intersect to form an "L" shaped structure.
Specifically, as shown in fig. 3, the upper and lower opposite surfaces of the first connection portion 121 are a first connection surface 1211 and a supporting surface 1212, respectively, wherein the first connection surface 1211 is electrically connected to the sampling integrated assembly 300, and the supporting surface 1212 is used for being connected or fixed. The left and right opposite surfaces of the second connection portion 122 are a second connection surface 1221 and a limiting surface 1222, the second connection surface 1221 is electrically connected to the battery cell 110, the first connection surface 1211 is matched to converge the current to the sampling integrated assembly 300, and the adaptor 120 is matched to limit and support the battery cell 110 in the box 200 through the limiting surface 1222 and the support surface 1212. It should be noted that multiple parallel strings of cells are realized by selecting one or more first connection surfaces 1211 to connect to the same bus bar 310.
As another cell adaptor in this embodiment, as shown in fig. 4, the first connection portion 121 and the second connection portion 122 are connected through a transition portion 123, the first connection portion 121, the transition portion 123, and the second connection portion 122 are integrally formed, the transition portion 123 is a bent structure, that is, a longitudinal cross section direction, the transition portion 123 forms a certain angle with both the first connection portion 121 and the second connection portion 122, or the transition portion 123 is a bent structure, that is, the transition portion 123 is an arc-shaped longitudinal cross section, and the transition portion 123 of both structures is used to avoid directly contacting the battery cell 110, and is used to share an impact force when being applied to an electric vehicle and being impacted, and at the same time, reduce a contact area with the battery cell, and increase a battery energy density.
Example 2
This embodiment is a battery core stack, and it is formed to pile up along the thickness direction by a plurality of battery core 110, pastes the spacer 130 that has the plastic between the adjacent battery core 110, plays insulating effect of keeping apart, and the head and the tail both ends adopt curb plate 140 to seal and separate. As shown in fig. 2, the electric core 110 of this embodiment is an aluminum shell electric core with two side outgoing poles, the two side outgoing poles are arranged side by side, and the pole of each electric core 110 is welded with the adaptor 120 in embodiment 1, that is, the second connecting surface 1221 of the adaptor 120 is electrically connected to the pole of the electric core 110, and the supporting surface 1212 and the limiting surface 1222 are matched with the vertical position relatively to fix and limit the adaptor 120, so as to support the electric core 110. The battery core of the embodiment omits a module shell, the weight is obviously reduced, the cost is obviously reduced, the energy density of the battery core is improved, the heat transfer path is shortened, and the efficiency is improved.
Example 3
A module-free battery pack of this embodiment, as shown in fig. 1, includes a plurality of battery cell stacks 100, a case 200, a plurality of sampling integrated assemblies 300, a bonding layer 400, and a case cover 500, where:
the inside of the box 200 is divided into a plurality of spaces by a plurality of supporting members 210 to be used as mounting positions of the core stacks 100, the supporting members 210 may be frame structures formed by splicing insulating plates, preferably thin insulating plates, the supporting members 210 of one frame structure are shown in fig. 18, a supporting surface 1212 of the adaptor 120 is mounted or adhered and fixed on the top of the supporting members 210, a limiting surface 1222 of the adaptor 120 is abutted or adhered on a side surface of the supporting members 210, so that the supporting members 210 support the adaptor 120, and meanwhile, the supporting members 210 play a role in isolating adjacent core stacks 100. In order to enhance the mechanical strength of the case 200, a plurality of reinforcing members 220 are integrally formed inside the case 200, the height of the reinforcing members 220 is lower than that of the supporting members 210, in this embodiment, the supporting members 210 are fixedly mounted on the reinforcing members 220 to save the internal space of the case 200, i.e., the bottom of the supporting members 210 is designed as an inverted "U" -shaped mounting portion, which is mounted on the reinforcing members 220 and can be connected by gluing to ensure the stable connection, referring to fig. 6 and partially enlarged fig. 7 and 8, or fig. 9 and partially enlarged fig. 10-14, or fig. 15 and partially enlarged fig. 16 and 17, which are schematic mounting diagrams of the internal structure of the case 200 without the module battery pack in this embodiment.
The electrical core stack 100 is the product described in embodiment 2, and this embodiment does not describe any further, and the electrical core stack 100 of this embodiment is 8, and is adhered to the bottom of the box 200 in two rows and four columns through the adhesive layer 400 in the installation positions separated by the support member 210, and the adhesive layer 400 is a heat-conducting structural adhesive.
The sampling integrated assembly 300 is mounted on the top of the joint of adjacent core stacks 100, as shown in fig. 5, and includes a bus bar 310, a plurality of temperature collecting members 320, a circuit integrated board 330, a nickel plate 340, a plug connector 350, and an insulating sheet 360, wherein the plurality of bus bars 310 are electrically connected to the circuit integrated board 330 through the nickel plate 340, so that the nickel plate 340 can receive the voltage signal of the bus bar 310 and transmit the voltage signal to the circuit integrated board 330. Any number of adapters 120 are welded to each bus bar 310, for example, one bus bar 310 connects two adapters 120 on the same electrical core stack 100, that is, two electrical cores are connected in parallel, and at the same time, the bus bar 310 electrically connects two electrical core stacks 100, so that a plurality of electrical core stacks 100 are connected. The temperature collecting element 320 is disposed on the circuit board 330, and attached to the surface of the battery cell 110 to monitor the temperature of the battery cell 110, and transmit the temperature to the circuit board 330. The connector 350 is connected to an end of the circuit board 330, and is configured to receive a voltage signal, a temperature signal, and the like received by the circuit board 330; the connection mode of the connector 350 and the circuit board 330 is generally 2: (1) when the circuit is made in the form of a lead or an FFC, the terminal is connected in a crimping mode; (2) when the circuit manufacturing form is PCB or FPC, the reflow soldering mode is used for soldering. The plugging structural forms used in the above 2 forms are different, and those skilled in the art select an appropriate circuit manufacturing form according to needs, and the present invention is not described in detail. Insulating piece 360 pastes in sampling integrated component 300 bottom, separates each electric connector and electric core, reaches insulating protection, prevents the effect of fish tail, and insulating piece 360, protection sampling integrated component 300 also can be pasted to sampling integrated component 300 upper surface simultaneously.
The case cover 500 is assembled together by fastening the sealed case body 200 with bolts and sealing rings, so that the battery pack achieves a sealing effect.
The box 200 is a pack box and can be sold separately. The non-module battery pack of the embodiment has the advantages of novel design and simple and reasonable structure, and can greatly improve the energy density of the battery, reduce the battery production process flow and improve the production efficiency.
The present invention and its embodiments have been described above schematically, and the description is not intended to be limiting, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (10)
1. The utility model provides a battery core adaptor which characterized in that: the sampling assembly comprises a first connecting part (121) and a second connecting part (122) which are intersected, wherein the second connecting part (122) is used for electrically connecting the battery cells (110), and the first connecting part (121) is used for electrically connecting the sampling assembly (300) to form the series/parallel connection of the battery cells (110).
2. The cell interposer of claim 1, wherein: the connecting piece further comprises a transition part (123), wherein the transition part (123) is arranged at the joint of the first connecting part (121) and the second connecting part (122) and forms a bending or bending structure.
3. A cell stack, characterized in that: formed by stacking several cells (110), each cell (110) being electrically connected to an adaptor (120) according to claim 1 or 2.
4. The electrical core stack of claim 3, wherein: adjacent electric cores (110) are bonded through a spacer (130); side plates (140) are bonded to the start end and the end of the stack, respectively.
5. The utility model provides a no module battery package, its box (200) and case lid (500) seal assembly, its characterized in that: the box (200) includes:
the electric core stacks (100), a plurality of electric core stacks (100) as claimed in claim 3 or 4 are pasted in the box body (200), and the adapters (120) on two adjacent electric core stacks (100) are arranged in parallel and/or oppositely;
and the sampling integrated assembly (300) is electrically connected with the adaptor (120) and leads out the positive and negative electrodes of the battery.
6. The modular battery pack of claim 5, wherein: the box body (200) is divided into a plurality of spaces by a plurality of supporting pieces (210) for installing the electric core stack (100), wherein the supporting pieces (210) are used for overlapping/fixedly connecting the adaptor pieces (120).
7. The modular battery pack of claim 6, wherein: the support (210) is a frame structure.
8. The modular battery pack of claim 6, wherein: a plurality of reinforcing pieces (220) are integrally formed in the box body (200) and used for enhancing the strength of the box body (200).
9. The modular battery pack of claim 5, wherein: the sampling integrated assembly (300) is electrically connected with the adaptor (120) through a bus bar (310), and adjacent electric core stacks (100) are connected to the same bus bar (310) in a junction mode.
10. The modular battery pack of claim 9, wherein: the sampling integrated assembly (300) is also provided with a plurality of temperature acquisition pieces (320).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211421644.9A CN115663406A (en) | 2022-11-14 | 2022-11-14 | Battery cell adapter, battery cell stack and non-module battery pack |
| PCT/CN2023/081210 WO2024103581A1 (en) | 2022-11-14 | 2023-03-14 | Battery cell adapter, battery cell stack, and module-free battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211421644.9A CN115663406A (en) | 2022-11-14 | 2022-11-14 | Battery cell adapter, battery cell stack and non-module battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115663406A true CN115663406A (en) | 2023-01-31 |
Family
ID=85021336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211421644.9A Pending CN115663406A (en) | 2022-11-14 | 2022-11-14 | Battery cell adapter, battery cell stack and non-module battery pack |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115663406A (en) |
| WO (1) | WO2024103581A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024103581A1 (en) * | 2022-11-14 | 2024-05-23 | 合肥国轩高科动力能源有限公司 | Battery cell adapter, battery cell stack, and module-free battery pack |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206619640U (en) * | 2017-02-21 | 2017-11-07 | 东莞新能源科技有限公司 | Energy storage device |
| JP7343449B2 (en) * | 2020-06-26 | 2023-09-12 | プライムアースＥｖエナジー株式会社 | Lithium ion secondary battery manufacturing method, lithium ion secondary battery, assembled battery of lithium ion secondary battery |
| CN212625963U (en) * | 2020-08-31 | 2021-02-26 | 珠海冠宇动力电池有限公司 | Electricity core subassembly and battery package |
| CN215911502U (en) * | 2021-09-29 | 2022-02-25 | 蜂巢能源科技有限公司 | Battery module and battery module |
| CN114388968A (en) * | 2021-12-31 | 2022-04-22 | 上海捷新动力电池系统有限公司 | Non-module battery pack integration device adopting soft package battery core |
| CN217134519U (en) * | 2022-03-07 | 2022-08-05 | 比亚迪股份有限公司 | Battery module, battery package and vehicle |
| CN115663406A (en) * | 2022-11-14 | 2023-01-31 | 合肥国轩高科动力能源有限公司 | Battery cell adapter, battery cell stack and non-module battery pack |
-
2022
- 2022-11-14 CN CN202211421644.9A patent/CN115663406A/en active Pending
-
2023
- 2023-03-14 WO PCT/CN2023/081210 patent/WO2024103581A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024103581A1 (en) * | 2022-11-14 | 2024-05-23 | 合肥国轩高科动力能源有限公司 | Battery cell adapter, battery cell stack, and module-free battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024103581A1 (en) | 2024-05-23 |
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