CN202384436U - Close-packing lithium-ion battery pack - Google Patents

Close-packing lithium-ion battery pack Download PDF

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Publication number
CN202384436U
CN202384436U CN2011205266338U CN201120526633U CN202384436U CN 202384436 U CN202384436 U CN 202384436U CN 2011205266338 U CN2011205266338 U CN 2011205266338U CN 201120526633 U CN201120526633 U CN 201120526633U CN 202384436 U CN202384436 U CN 202384436U
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CN
China
Prior art keywords
cell
battery module
ion battery
lithium ion
battery
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Expired - Lifetime
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CN2011205266338U
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Chinese (zh)
Inventor
王剑
郭秋林
张天锷
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SUZHOU DURAPOWER TECHNOLOGY CO LTD
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SUZHOU DURAPOWER TECHNOLOGY CO LTD
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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Abstract

The utility model relates to a close-packing lithium-ion battery pack, comprising a cell module, a spacing board, an aluminum separator, an aluminum cover board and a cell module bottom cover, wherein unit cells and cell modules are distributed at interval by the spacing board and the aluminum separator so as to realize demands of fully balanced radiation of a lithium-ion power cell; a disadvantage of poor radiation performance in a current cell pack is solved; in addition, the close-packing lithium-ion battery pack is characterized by convenient manufacture and assembly, obvious radiation effect, safe and reliable use; a high-efficient continuous production procedure of the cell pack is realized; and safety and reliability in a using process of the lithium-ion power cell are ensured effectively.

Description

A kind of closely packed lithium ion battery group
Technical field
The present invention relates to a kind of closely packed lithium ion battery group, more specifically relate to a kind of soft package lithium ion power battery group that is used for electric motor car.
Background technology
Increasingly serious along with the energy and environmental problem; Under the promotion in industrial policies such as energy-saving and emission-reduction, green credit, green security and market; Electric automobile gradually cause the society and the attention of government, electric automobile also will become a big branch of following automobile industry.One of electric automobile core technology is a battery system.And whether available the group technology of battery be this system of decision key problem in technology.From existing battery technology and cost consideration; Lithium-ion-power cell has that voltage is steady, safe and reliable, cheap, applied widely, abundant raw materials and reclaiming utilance advantages of higher; This shows; Lithium ion battery is suitable for electric automobile most at present, so the influence on development of lithium ion battery electric automobile development trend from now on.This also lets the application of lithium ion battery progressively expand to high-power products such as electric automobile from the small-power product of traditional portable formula consumer electronics.The electric core quantity of using in the product becomes tens present joints by 1 joint or a few joint in past, even the hundreds of joint.
Yet, the group technology of lithium ion battery, application technologies such as charging in groups, discharge and maintenance management do not obtain due attention, cause the application technology of lithium ion battery seriously to lag behind the technological development of electric core.The energy resource system of existing electric automobile generally all adopts the capacity that the mode of more piece electricity core parallel connection and serial connection is expanded battery, improves the voltage of battery.The mounting means that wherein has is that more piece electricity core directly is placed in the battery case, because that battery lacks is necessary fixing, outside vibrations are easy to make the battery pack job insecurity, and it is unreliable etc. to be electrically connected such as battery distortion, battery; Also have more piece electricity core closely is fixed together, though this mode has solved the problem of battery antidetonation to a certain extent, more piece electricity core squeezes and sticks together, and is unfavorable for the heat radiation that electric core discharges and recharges, and influences the job stability of battery pack equally.Therefore, press for the closely packed lithium ion battery group of designing a kind of safe and reliable, stability and high efficiency.
The utility model content
The purpose of the utility model is to be directed against battery easy deformation in the prior art, battery is electrically connected problems such as unreliable and battery pack heat dispersion difference provides a kind of closely packed lithium ion battery group.
The technical solution that realizes the utility model purpose is: the described closely packed battery pack of the utility model; Comprise battery module, space bar, aluminium dividing plate, Aluminum cover and battery module bottom; The polylith cell is arranged at interval in a plurality of cell frameworks and through metal connecting sheet and is connected in parallel into a battery module; Two interblock dividing plates are set between each battery module, two aluminium dividing plates are set between the space bar, battery module is serially connected in a battery pack through metal connecting sheet; Two Aluminum covers are placed on the both sides of battery pack; The battery module bottom places the bottom of battery module, and above-described Aluminum cover, battery module, space bar and aluminium dividing plate closely connect through the bolt hole that on each parts, is provided with through tubular rivet successively.
The number of said cell is the n piece, n >=2, and the number of said cell framework is the n+1 piece, n >=2, the number of said battery module >=2.
Described cell is the lithium-ion-power cell of aluminum plastic film flexible package, and the lug of described cell adopts screw to connect, and lug adopts screw to be connected with metal connecting sheet.
On described cell framework, draw-in groove is set, voltage acquisition line fixed discharge is in draw-in groove.
Described cell framework, space bar and battery module bottom are processed by the PP material, and the material of described aluminium dividing plate and Aluminum cover is an aluminium flake.
The utility model compared with prior art has the following advantages:
1. described this closely packed lithium ion battery group is provided with devices such as space bar, aluminium dividing plate; Make cell and battery module spaced apart; Realize comprehensive, the harmonious requirement of dispelling the heat of lithium-ion-power cell, overcome the shortcoming of existing battery pack internal heat dissipating poor performance;
2. that described this closely packed lithium ion battery group is made is easy to assembly, radiating effect is obvious and safe and reliable, has realized the production process that battery pack is high-efficiency continuous, has effectively guaranteed the fail safe and the reliability of lithium-ion-power cell use.
Description of drawings
The overall structure sketch map of a kind of closely packed lithium ion battery group that Fig. 1 designs for the utility model.
The internal structure sketch map of a kind of closely packed lithium ion battery group that Fig. 2 designs for the utility model.
The structural representation of battery module in a kind of closely packed lithium ion battery group that Fig. 3 designs for the utility model
The structural representation of a kind of closely packed lithium ion battery group middle ware dividing plate that Fig. 4 designs for the utility model.
The structural representation of aluminium dividing plate in a kind of closely packed lithium ion battery group that Fig. 5 designs for the utility model.
The structural representation of Aluminum cover in a kind of closely packed lithium ion battery group that Fig. 6 designs for the utility model.
The structural representation of battery module bottom in a kind of closely packed lithium ion battery group that Fig. 7 designs for the utility model.
The structural representation of cell in a kind of closely packed lithium ion battery group that Fig. 8 designs for the utility model.
The structural representation of cell framework in a kind of closely packed lithium ion battery group that Fig. 9 designs for the utility model.
Embodiment
Below in conjunction with accompanying drawing, specify the execution mode of the utility model.
As shown in Figure 1, a kind of closely packed lithium ion battery group.Shown in Fig. 2-7, the described closely packed battery pack of the utility model comprises battery module 2, space bar 3, aluminium dividing plate 4, Aluminum cover 5 and battery module bottom 6.Two cells 1 are arranged in three cell frameworks 7 and through metal connecting sheet 10 at interval and are connected in parallel into a battery module 2; Two interblock dividing plates 3 are set between two battery modules 2; Two aluminium dividing plates 4 are set between the two interblock dividing plates 3; Two battery modules 2 are serially connected in a battery pack through metal connecting sheet 10, and two Aluminum covers 5 are placed on the both sides of battery pack, and battery module bottom 6 places the bottom of battery module 2; Above-described Aluminum cover 5, battery module 2, space bar 3 and aluminium dividing plate 4 closely connect through the bolt hole that on each parts, is provided with through tubular rivet 8 successively.
Like Fig. 8, shown in 9, described cell 1 is the lithium-ion-power cell of flexible package, and cell 1 mainly is to be formed by the aluminum plastic film packing, draws the lug 11 (positive and negative electrode) of battery then at the two ends of cell 1.At first, two cells 1 are arranged in three cell frameworks 7 at interval, are connected in parallel into a battery module 2 through metal connecting sheet 10; Secondly, two battery modules 2 are discharged side by side, respectively two battery modules 2 are serially connected in a battery pack through metal connecting sheet 10.For ease of assembly in process of production, in manufacture process, practice thrift cost, above-mentioned metal connecting sheet 10 is a same metal connecting sheet.Simultaneously, connect held stationary in order to guarantee the inner battery of battery pack, the utilization screw connects between the lug 11 of described cell 1, uses screw to be connected equally between lug 11 and the metal connecting sheet 10.
The inner voltage acquisition line 12 of battery pack is installed for ease, guarantees that voltage acquisition line 12 is neatly fixing, and through draw-in groove 13 is set on cell framework 7, utilization draw-in groove 13 is with voltage acquisition line 12 fixed discharges.
In order to play the effect of waterproof and heat-insulating, described cell framework 7, space bar 3 and battery module bottom 2 are processed by the PP material.For the effect of strengthening lowering the temperature and cooling off; Aluminium dividing plate 4 heat that battery pack is inner that is built in inside battery is outwards derived; Heat distributes these heats through the outside Aluminum cover 5 of external battery group better more efficiently simultaneously, and the material of described aluminium dividing plate 4 and Aluminum cover 5 is an aluminium flake.

Claims (5)

1. closely packed lithium ion battery group; It is characterized in that comprising battery module (2), space bar (3), aluminium dividing plate (4), Aluminum cover (5) and battery module bottom (6); Cell (1) is arranged in the cell framework (7) and through metal connecting sheet (10) at interval successively and is connected in parallel into described battery module (2); Two interblock dividing plates (3) are set between each described battery module (2); Two aluminium dividing plates (4) are set between the described space bar (3); Described battery module (2) is serially connected in described battery pack through metal connecting sheet (10), and two Aluminum covers (5) are placed on the both sides of said battery pack, and described battery module bottom (6) places the bottom of described battery module (2); Above-described Aluminum cover (5), battery module (2), space bar (3) and aluminium dividing plate (4) closely connect through the bolt hole that on each parts, is provided with through tubular rivet (8) successively.
2. closely packed lithium ion battery group according to claim 1, the number that it is characterized in that said cell (1) is the n piece, n >=2, the number of said cell framework (7) is the n+1 piece, n >=2, number >=2 of said battery module (2).
3. closely packed lithium ion battery group according to claim 1; It is characterized in that described cell (1) is the lithium-ion-power cell of aluminum plastic film flexible package; The lug (11) of described cell (1) adopts screw to connect, and described lug (11) adopts screw to be connected with described metal connecting sheet (10).
4. closely packed lithium ion battery group according to claim 1 is characterized in that on described cell framework (7), being provided with draw-in groove (13), and voltage acquisition line (12) fixed discharge is in draw-in groove (13).
5. closely packed lithium ion battery group according to claim 1 is characterized in that described cell framework (7), space bar (3) and battery module bottom (6) are to be processed by the PP material, and the material of described aluminium dividing plate (4) and Aluminum cover (5) is an aluminium flake.
CN2011205266338U 2011-12-16 2011-12-16 Close-packing lithium-ion battery pack Expired - Lifetime CN202384436U (en)

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CN2011205266338U CN202384436U (en) 2011-12-16 2011-12-16 Close-packing lithium-ion battery pack

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Application Number Priority Date Filing Date Title
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CN202384436U true CN202384436U (en) 2012-08-15

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103594668A (en) * 2013-10-15 2014-02-19 深圳金山电池有限公司 Portable power storage battery box
CN103682446A (en) * 2012-09-14 2014-03-26 江苏华富储能新技术发展有限公司 Lithium ion battery pack assembly module
CN105977425A (en) * 2016-07-06 2016-09-28 厦门宝龙新能源发展有限公司 Plastic rubber frame reinforcing structure of flexible-package polymer Li-ion battery cell
CN106711363A (en) * 2015-07-22 2017-05-24 北京普莱德新能源电池科技有限公司 Battery grouping framework
CN107104211A (en) * 2016-02-23 2017-08-29 株式会社杰士汤浅国际 The manufacture method of electrical storage device and electrical storage device
US10008708B2 (en) 2015-02-03 2018-06-26 Microvast Power Systems Co., Ltd. Battery pack
CN109390510A (en) * 2017-08-03 2019-02-26 中信国安盟固利动力科技有限公司 A kind of air-cooled lithium ion battery frame and battery pack and its assembly method
JP2019117732A (en) * 2017-12-27 2019-07-18 株式会社Gsユアサ Power storage device
CN110718666A (en) * 2019-10-28 2020-01-21 安徽超稳动力节能科技有限公司 Modular battery pack

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103682446A (en) * 2012-09-14 2014-03-26 江苏华富储能新技术发展有限公司 Lithium ion battery pack assembly module
CN103682446B (en) * 2012-09-14 2018-05-04 江苏华富储能新技术股份有限公司 Li-ion batteries piles load module
CN103594668A (en) * 2013-10-15 2014-02-19 深圳金山电池有限公司 Portable power storage battery box
CN103594668B (en) * 2013-10-15 2015-09-23 深圳金山电池有限公司 A kind of Portable power storage battery box
US10008708B2 (en) 2015-02-03 2018-06-26 Microvast Power Systems Co., Ltd. Battery pack
CN106711363A (en) * 2015-07-22 2017-05-24 北京普莱德新能源电池科技有限公司 Battery grouping framework
CN107104211A (en) * 2016-02-23 2017-08-29 株式会社杰士汤浅国际 The manufacture method of electrical storage device and electrical storage device
CN105977425A (en) * 2016-07-06 2016-09-28 厦门宝龙新能源发展有限公司 Plastic rubber frame reinforcing structure of flexible-package polymer Li-ion battery cell
CN109390510A (en) * 2017-08-03 2019-02-26 中信国安盟固利动力科技有限公司 A kind of air-cooled lithium ion battery frame and battery pack and its assembly method
JP2019117732A (en) * 2017-12-27 2019-07-18 株式会社Gsユアサ Power storage device
JP7134626B2 (en) 2017-12-27 2022-09-12 株式会社Gsユアサ power storage device
CN110718666A (en) * 2019-10-28 2020-01-21 安徽超稳动力节能科技有限公司 Modular battery pack

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Granted publication date: 20120815