CN208256788U - A kind of soft bag lithium ionic cell module - Google Patents
A kind of soft bag lithium ionic cell module Download PDFInfo
- Publication number
- CN208256788U CN208256788U CN201820639018.XU CN201820639018U CN208256788U CN 208256788 U CN208256788 U CN 208256788U CN 201820639018 U CN201820639018 U CN 201820639018U CN 208256788 U CN208256788 U CN 208256788U
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- Prior art keywords
- pole
- fixed frame
- battery
- busbar connector
- soft bag
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a kind of soft bag lithium ionic cell modules, including several battery units, each battery unit includes fixed frame, at least two battery cores are arranged side by side in fixed frame, pole component is connected on fixed frame, pole component includes pole supporting element and is arranged in juxtaposition just, negative terminal, each battery core has about being respectively centrosymmetrically arranged just, negative electrode lug, battery core is arranged to tab along two rows of arrangements and each column tab is distributed in pole two sides, tab is parallel with pole side and is electrically connected on pole, multiple battery unit arranged stackeds, pole top surface be disposed with for by it is adjacent just, the concatenated busbar connector of negative terminal, busbar connector is parallel with pole top surface and welds.For the utility model in tab pole welding process, tab is effectively simplified the assembly technology of battery module, busbar connector reduces busbar connector difficulty of processing and cost without bimetallic material without penetrating slot or bending.
Description
Technical field
The utility model relates to technical field of lithium ion, especially a kind of soft bag lithium ionic cell module.
Background technique
Lithium ionic cell module includes multiple battery cores arranged in series and parallel, by the way that multiple battery cores are mechanically connected and are electrically connected
Form battery module.Wherein, electrical connection directly affects the performance of battery module, therefore even more important.For soft package battery module,
Electrical connection refers to the connection of cell polar ear and busbar connector.The electrical connection of soft package battery module at present mainly uses laser welding and surpasses
Sonic soldering connects, in the majority with laser welding.
Existing common battery module, structure include several positive electricity pool units and negative cell, positive electricity pool unit
Metal support block is inlaid on frame, anode ear includes two aluminium lateral plates and connect and be pressed in metal support block with aluminium lateral plate
Aluminium transverse slat, metal support block is inlaid on negative cell frame, and negative electrode lug includes two copper side plates and connect simultaneously with copper side plate
The copper transverse slat being pressed in metal support block；Busbar connector is made of the copper aluminium flake of solid-state diffusion, by the aluminium flake of busbar connector when electrical connection
With the aluminium transverse slat and supporting block laser welding of positive electricity pool unit, the copper sheet of busbar connector and the copper transverse slat and supporting block of negative cell
Welding；Complicated extreme ear structure usually requires to carry out pressing and bending to tab or weld the modes such as lead-out tablet to realize, to tab
Production brings certain difficulty, and two kinds of different materials of busbar connector are connected by solid-state diffusion, also increases different materials connection
The raising of process and cost of manufacture.
Summary of the invention
Technical problem to be solved by the utility model is: the utility model provides in order to overcome the deficiencies in the existing technology
It is a kind of that the soft bag lithium ionic cell module that a kind of structure is simple, soldering reliability is high, processing cost is low is provided, solve the prior art
Middle tab needs the pretreatments such as bending or welding lead-out tablet and busbar connector using the high cost of unlike material connection bring and company
The problems such as connecing security risk.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of soft bag lithium ionic cell module, tool
There are the battery unit of several stacked arrangements, the front end-plate for being correspondingly arranged at the battery unit both ends, end plate and by battery
The band element that unit and front end-plate, end plate band together, the battery unit have fixed frame and are located at fixed frame
Busbar connector above frame, fixed frame is interior to be equipped at least two spaced battery cores, and battery core upper end is hung down equipped with battery core is symmetrical with
The straight anode ear and negative electrode lug center line arrangement and stretched out from fixed frame upper end notch, the anode ear and negative electrode lug are piece
Shape metal plate；
Pole component is connected on the fixed frame, pole component includes pole supporting element and is apart arranged in pole branch
Positive terminal and negative terminal in support member, the positive terminal and negative terminal are the U-shaped sheet metal made of same metal material
Plate；
Busbar connector is plate structure, including for by the concatenated series connection busbar connector of adjacent positive column and negative terminal, by institute
Negative terminal parallel connection is stated to form the negative bus-bar of module negative terminal and the positive terminal parallel connection is formed module positive terminal
Positive bus；
The isolation board being electrically isolated to busbar connector is equipped between the busbar connector, isolation board is fixed by snap in pole
On component.
For convenience of positioning stacking, the fixed frame side wall is equipped with guide groove and positioning protrusion, adjacent fixing frame
Between guide groove and positioning protrusion cooperation realize laminated cell positioning.
To improve the heat dissipation performance in battery use process, being fastened on the fixed frame using bonding mode has heat dissipation
Plate, the position that guide groove is corresponded on heat sink are equipped with the notch for ensuring that positioning protrusion and guide groove normally assemble.
Fastness is tied up for raising battery cell module, the fixed frame and heat sink side are provided with and are used for
Accommodate the groove with element.
To improve battery normal usage, it is equipped between the battery core for absorbing impact and preventing the slow of battery bulging
Punching pad.
The positive terminal and negative terminal uses the metal material for having preferable weld bonds with positive and negative tab, such as copper
Nickel plating, to improve welding performance.
Preferably, it is provided with the retaining tongue piece inwardly tilted on the positive terminal and negative terminal, pole supporting element is consolidated
Determine to offer square groove on crossbeam, retaining tongue piece, which is caught in square groove, realizes positive terminal and negative terminal and pole supporting element
Clamping.
Further, umbrella shape protrusion, consolidating on umbrella shape protrusion insertion fixed frame are provided on the pole supporting element
It opens after determining circular hole and realizes fixation of the pole component on fixed frame.
The beneficial effects of the utility model are: the positive and negative lug and strap in the utility model uses plate armature
Part is effectively simplified the manufacture difficulty and cost of electric connection structure；Busbar connector uses single conductive material, avoids different materials
Connect process and the process bring security risk；In electric connection structure, between positive and negative tab and positive and negative pole, busbar connector
Electrical connection between positive and negative pole is that face contact is connect, and area of passage is big, effectively reduces electrical connection impedance, high current
It is not easy to generate heat in charge and discharge process, electric connection structure is not easy to loosen in use, and connection reliability is high；Pole component and electricity
Pool unit is using seperated design, applicable different series-parallel combination, versatility height.
Detailed description of the invention
The present invention will be further described with embodiment with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the decomposition texture schematic diagram of the utility model.
Fig. 3 is the decomposition texture schematic diagram of battery unit described in the utility model.
Fig. 4 is the decomposition texture schematic diagram of pole component described in the utility model.
Fig. 5 is the electric connection structure cross-sectional view of the utility model.
In figure: 1. battery unit, 101. heat sink, 102. fixed frame, 103. battery core, 104. cushion, 105. positioning protrusion
106. 112. anode ear of guide groove 107. notch, 108. groove, 109. groove, 110. circular hole, 111. negative electrode lug, 113. square breach 2.
Raised 205. fixed card slots 206. of 203. positive terminal of pole component 201. pole supporting element, 202. negative terminal, 204. umbrella shape are fixed horizontal
207. cathode of beam mark, 208. 211. retaining tongue piece of anode raised 210. fixed card slot of mark 209.V shape, 3. negative bus-bar 4. is gone here and there
Join 5. positive bus 6. of busbar connector with 9. cover board of element 7. end plate, 8. front end-plate, 10. isolation board
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
A kind of soft bag lithium ionic cell module as shown in Figure 1 and Figure 2, the battery arranged in superimposed manner including several
Unit 1, the front end-plate 8 for being located at 1 front end of battery unit, the end plate 7 for being located at 1 rear end of battery unit and by 1 and of battery unit
The band element 6 that front end-plate 8, end plate 7 band together, 1 top of battery unit is equipped with cover board 9, for covering entire battery
The electric connection structure of module exposes it outward.
The battery unit 1 includes fixed frame 102 and the busbar connector above fixed frame 102, with fixed frame
102 front end faces and two sides, which are affixed merga pass adhesive bonds, heat sink 101, set in the fixed frame 102 there are two
Spaced battery core 103,103 upper end of battery core, which is equipped with, is symmetrical with 103 vertical center line of battery core arrangement and from fixed frame
The anode ear 112 and negative electrode lug 111 that 102 upper end notches stretch out, the anode ear 112 and negative electrode lug 111 are sheet metal plate,
It is equipped between two battery cores 103 for absorbing impact and preventing the cushion 104 of battery bulging.
The pole component 2 straddled between two battery cores 103 is installed on fixed frame 102, is set in the pole component 2
There are the negative terminal 202 and positive terminal 203 being arranged symmetrically relative to its center line, two negative electrode lugs 111 of two of them battery core 103
202 two sides of negative terminal are located at, two anode ears 112 of two battery cores 103 are located at 203 two sides of positive terminal, by swashing
Light beam welds anode ear 112 and positive terminal 203, negative electrode lug 111 and 202 phase of negative terminal to form metallurgical bonding.
The busbar connector includes that negative bus-bar 3, series connection busbar connector 4 and positive bus 5, busbar connector are mounted on battery list
203 top of negative terminal 202 and positive terminal on first 1 top, by laser by busbar connector and corresponding negative terminal 202 and positive terminal
203 weld together.It is respectively provided between negative bus-bar 3 and busbar connector 4 of connecting, between series connection busbar connector 4 and positive bus 5
There is isolation board 10, for being electrically isolated to busbar connector, improves battery module safety, the isolation board 10 is fixed by snap
In pole component 2.
The specific structure is shown in FIG. 3 for battery unit 1, and battery unit 1 includes heat sink 101, fixed frame 102, battery core
103 and cushion 104, positioning protrusion 105 and guide groove 106, a battery unit 1 are provided on 102 side wall of fixed frame
Positioning protrusion insertion adjacent cell 1 guide groove in, facilitate the stacked assembly of battery unit 1；On heat sink 101 with lead
To the corresponding position of slot 106 setting jagged 107, guide groove is inserted into guarantee that positioning protrusion 105 can pass through heat sink 101
In 106；Corresponding position is respectively set fluted 108 and 109 on heat sink 101 and fixed frame 102, for accommodating band member
Part 6 prevents from shifting in its use process；Fixed frame 102 is arranged to back-shaped frame structure, to guarantee 103 surface of battery core and dissipate
The thermo-contact of hot plate 101；The setting of 102 upper end of fixed frame is there are two the square breach 113 that are arranged symmetrically, anode ear 112 and negative
Tab 111 stretches out 102 upper end of fixed frame from the square breach 113；102 both sides of the upper end of fixed frame is provided with for installing
The circular hole 110 of pole component 2, two battery cores 103 in battery unit 1 may be arranged to negative electrode lug 111 towards the side X, can also
To be arranged as and X is to reversed, two kinds of battery units 1 being consequently formed are configured according to different quantity, can be formed not
With the battery module of series-parallel form.
As shown in figure 4, the pole component 2 has pole supporting element 201, negative terminal 202 and positive terminal 203, positive terminal
203 and negative terminal 202 be the U-shaped sheet metal plate made of same metal material, pass through negative terminal 202 and positive terminal 203
On retaining tongue piece 211 and pole supporting element 201 on fixed card slot 205,210 be clamped, by negative terminal 202 and positive terminal 203
It is fixed on the fixed cross beam 206 of pole supporting element 201.Cathode mark 207 and anode mark are provided on pole supporting element 201
208, for recognizing pole type, facilitate battery unit 1 by the series-parallel form stacking and busbar connector of design in correct position
On installation.
When pole component 2 is installed, positive terminal 203 welds between two anode ears 112 and with anode ear 112, cathode
Column 202 welds between two negative electrode lugs 111 and with negative electrode lug 111.Positive terminal 203 and negative terminal 202 use same metal
Material copper nickel plating production, to guarantee that busbar connector can be using single metal material and capable of securely welding with pole.Pole supporting element
201 lower parts are provided with umbrella shape protrusion 204, and umbrella shape protrusion 204 is inserted into the circular hole 110 on fixed frame 102, realizes pole component 2
Installation on fixed frame 102.201 lower part of pole supporting element has V-arrangement protrusion 209, is mounted on fixed frame in pole component 2
When on frame 102, V-arrangement protrusion 209 separates two anode ears 112 in 203 two sides of positive terminal, and two negative electrode lugs 111 are separated negative
202 two sides of pole.
As shown in figure 5, when battery unit 1 is electrically connected, two anodes of two battery cores 103 in fixed frame 102
Ear 112 and negative electrode lug 11 are arranged respectively at the two sides of corresponding positive terminal 203 and negative terminal 202, and with positive terminal 203 and cathode
202 side of column is parallel, and positive terminal 203 and negative terminal 202 keep smooth, vertical original state, by laser beam by the pole
Ear is realized tab and the face contact of pole and is electrically connected, wherein anode ear 112 and positive terminal together with pole sidewall weld
203 welding, negative electrode lug 111 and negative terminal 202 weld.The busbar connector is arranged on eight pole upper surfaces to (Fig. 5 is only shown
Wherein three negative terminals 202), using the laser beam fusing busbar connector region Chong Die with pole, realize the face of busbar connector and pole
Contact and electrical connection.Wherein positive bus 5 and four positive terminals 203 for battery module power output weld, and cathode converges
Stream row 3 and four negative terminals 202 for battery module power output weld, connect busbar connector 4 and four positive terminals 203 and four
A welding of negative terminal 202 realizes that battery core is in parallel and serial in module.In other embodiments, busbar connector can be with different number
Pole electrical connection, by formed it is different series-parallel in the form of battery module.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (8)
1. a kind of soft bag lithium ionic cell module has the battery unit of several stacked arrangements, is correspondingly arranged at the battery list
Front end-plate, end plate and the band element for banding together battery unit and front end-plate, end plate at first both ends, feature
Be: the battery unit has fixed frame and the busbar connector above fixed frame, is equipped at least two in fixed frame
A spaced battery core, battery core upper end, which is equipped with, to be symmetrical with battery core vertical center line arrangement and stretches out from fixed frame upper end notch
Anode ear and negative electrode lug, the anode ear and negative electrode lug are sheet metal plate；
Pole component is connected on the fixed frame, pole component includes pole supporting element and is apart arranged in pole supporting element
On positive terminal and negative terminal, the positive terminal and negative terminal are the U-shaped sheet metal plate made of same metal material；
Busbar connector is plate structure, including is used for the concatenated series connection busbar connector of adjacent positive column and negative terminal, described will bear
Pole parallel connection forms the negative bus-bar of module negative terminal and the positive terminal parallel connection is being formed module positive terminal just
Pole busbar connector；
The isolation board being electrically isolated to busbar connector is equipped between the busbar connector, isolation board is fixed by snap in pole component
On.
2. soft bag lithium ionic cell module as described in claim 1 is led it is characterized in that: the fixed frame side wall is equipped with
To slot and positioning protrusion, guide groove and positioning protrusion cooperation between adjacent fixing frame realize the positioning of laminated cell.
3. soft bag lithium ionic cell module as claimed in claim 2, it is characterized in that: using bonding side on the fixed frame
Formula fastening has heat sink, and the position that guide groove is corresponded on heat sink, which is equipped with, ensures that positioning protrusion and guide groove normally assemble scarce
Mouthful.
4. soft bag lithium ionic cell module as claimed in claim 3, it is characterized in that: the fixed frame and heat sink side
It is provided with for accommodating the groove with element.
5. soft bag lithium ionic cell module as described in claim 1, it is characterized in that: being equipped between the battery core for absorbing
Impact and prevent the cushion of battery bulging.
6. soft bag lithium ionic cell module as described in claim 1, it is characterized in that: the positive terminal and negative terminal are using same
Kind metal material copper nickel plating production.
7. soft bag lithium ionic cell module as described in claim 1, it is characterized in that: being arranged on the positive terminal and negative terminal
There is the retaining tongue piece inwardly tilted, square groove is offered on the fixed cross beam of pole supporting element, retaining tongue piece is caught in rectangular recessed
The clamping of positive terminal and negative terminal and pole supporting element is realized in slot.
8. soft bag lithium ionic cell module as described in claim 1, it is characterized in that: being provided with umbrella on the pole supporting element
Shape protrusion, and it is opened after the fixation circular hole on umbrella shape protrusion insertion fixed frame and realizes pole component consolidating on fixed frame
It is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639018.XU CN208256788U (en) | 2018-05-02 | 2018-05-02 | A kind of soft bag lithium ionic cell module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639018.XU CN208256788U (en) | 2018-05-02 | 2018-05-02 | A kind of soft bag lithium ionic cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208256788U true CN208256788U (en) | 2018-12-18 |
Family
ID=64635726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820639018.XU Active CN208256788U (en) | 2018-05-02 | 2018-05-02 | A kind of soft bag lithium ionic cell module |
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| Country | Link |
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| CN (1) | CN208256788U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448041A (en) * | 2018-05-02 | 2018-08-24 | 中航锂电技术研究院有限公司 | A kind of soft bag lithium ionic cell module and connection method |
| CN110518170A (en) * | 2019-09-29 | 2019-11-29 | 富能宝能源科技有限公司 | A kind of novel combination type battery PACK cabinet |
| WO2021052005A1 (en) * | 2019-09-20 | 2021-03-25 | 宁德时代新能源科技股份有限公司 | Battery module, battery pack and vehicle |
| CN113659187A (en) * | 2021-07-22 | 2021-11-16 | 风帆有限责任公司 | Novel storage battery and assembly process |
| CN113871771A (en) * | 2021-09-29 | 2021-12-31 | 蜂巢能源科技有限公司 | Module of battery pack and battery pack |
| CN114079111A (en) * | 2020-08-11 | 2022-02-22 | 北京好风光储能技术有限公司 | Large-scale vertical energy storage battery and energy storage container |
-
2018
- 2018-05-02 CN CN201820639018.XU patent/CN208256788U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448041A (en) * | 2018-05-02 | 2018-08-24 | 中航锂电技术研究院有限公司 | A kind of soft bag lithium ionic cell module and connection method |
| WO2021052005A1 (en) * | 2019-09-20 | 2021-03-25 | 宁德时代新能源科技股份有限公司 | Battery module, battery pack and vehicle |
| US20220115730A1 (en) * | 2019-09-20 | 2022-04-14 | Contemporary Amperex Technology Co., Limited | Battery module, battery pack and vehicle |
| EP3930088A4 (en) * | 2019-09-20 | 2022-06-08 | Contemporary Amperex Technology Co., Limited | Battery module, battery pack and vehicle |
| US11811083B2 (en) * | 2019-09-20 | 2023-11-07 | Contemporary Amperex Technology Co., Limited | Battery module, battery pack and vehicle |
| CN110518170A (en) * | 2019-09-29 | 2019-11-29 | 富能宝能源科技有限公司 | A kind of novel combination type battery PACK cabinet |
| CN114079111A (en) * | 2020-08-11 | 2022-02-22 | 北京好风光储能技术有限公司 | Large-scale vertical energy storage battery and energy storage container |
| CN114079111B (en) * | 2020-08-11 | 2023-11-14 | 好风光储能技术(成都)有限公司 | Large vertical energy storage battery and energy storage container |
| CN113659187A (en) * | 2021-07-22 | 2021-11-16 | 风帆有限责任公司 | Novel storage battery and assembly process |
| CN113871771A (en) * | 2021-09-29 | 2021-12-31 | 蜂巢能源科技有限公司 | Module of battery pack and battery pack |
| CN113871771B (en) * | 2021-09-29 | 2024-01-19 | 蜂巢能源科技有限公司 | Battery pack module and battery pack |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Address before: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Patentee before: Kaibo Energy Technology Co.,Ltd. Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: Kaibo Energy Technology Co.,Ltd. Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Address before: No.88 Jintan Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: CHINA AVIATION LITHIUM BATTERY RESEARCH INSTITUTE Co.,Ltd. Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |