CN110311164A - The lithium ion battery parallel connection of detachable mixed style is pressurized increase-volume battery pack structure - Google Patents
The lithium ion battery parallel connection of detachable mixed style is pressurized increase-volume battery pack structure Download PDFInfo
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- CN110311164A CN110311164A CN201910423747.0A CN201910423747A CN110311164A CN 110311164 A CN110311164 A CN 110311164A CN 201910423747 A CN201910423747 A CN 201910423747A CN 110311164 A CN110311164 A CN 110311164A
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- core module
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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
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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
- H01M10/058—Construction or manufacture
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention discloses a kind of lithium ion battery parallel connection pressurization increase-volume battery pack structure of detachable mixed style, including by same type of cylindrical electrical core and being unified into the cylindrical electrical core module in parallel for drawing positive negative conductor, by same type of square battery core and it is unified into the square battery core module in parallel for drawing positive negative conductor, draws the parallel polymerization object battery core module of positive negative conductor at one by same type of polymer battery core parallel connection；Cylindrical electrical core module, square battery core module in parallel and parallel polymerization object battery core module in parallel are welded to form battery pack by conducting wire and protection board.It is changeable that the present invention can not only be such that the structure of battery pack realizes, can preferably play battery performance in groups by parallel connection.
Description
Technical field
The present invention relates to consumer lithium ion battery parallel connections to be pressurized increase-volume battery technology field, can more particularly to one kind
The lithium ion battery parallel connection for dismantling mixed style is pressurized increase-volume battery pack structure.
Background technique
Single battery is connected in series to certain voltage class using middle by lithium ion battery, while needing battery being parallel to one
Fixed capacitance grade to meet the needs of voltage, power, battery pack generally by tens to a single batteries series connection up to a hundred or first simultaneously
It is composed in series after connection, when battery is connected into group, battery pack maximum available is common by cell capacity and its state-of-charge
Determine, the inconsistency of monomer voltage will lead to partial monosomy battery overcharge or over-discharge；Battery parallel connection in groups when, branched battery
Internal resistance, capacity volume variance will cause the current imbalance of parallel branch.Whole group electricity will be reduced by occurring inconsistent phenomenon in battery pack
The service efficiency in pond, if mismanagement, or even would influence battery.Therefore the performance of battery pack is not battery cell
Can simple superposition, the capacity volume variance of two batteries is larger, can not connect and apply in groups, by it is in parallel in groups can be compared with
Battery performance is played well, by reasonably screening parallel connection in groups, echelon is can effectively improve and is utilized using the capacity of used batteries
Rate reduces the totle drilling cost of battery investment, realizes good economic benefit.
Currently, lithium ion battery is increasingly being used for a variety of portable mobile apparatus fields.For some hand-helds
Or portable mobile apparatus, since the battery shapes of customer requirement are more and more diversified, the cost of strict control battery pack, with
Past is all the capacity and voltage with the battery then series connection first in parallel of a batch of model of the same race to reach customer requirement, due to electricity
The consistency in pond is poor, spends cost too high in the small battery process of screening capacity volume variance.
Summary of the invention
The purpose of the present invention is being directed to technological deficiency existing in the prior art, above-mentioned technology is overcome the shortcomings of, by voltage
The encapsulating structure design for the lithium ion battery parallel connection that platform is consistent, form is different is introduced into hand-held or portable mobile apparatus
In battery, to provide, a kind of encapsulation is accurate, structure is reliable, structure diversification, capacity density maximize and lower-cost
The lithium ion battery parallel connection of detachable mixed style is pressurized increase-volume battery pack structure.
The technical solution adopted to achieve the purpose of the present invention is:
A kind of lithium ion battery parallel connection pressurization increase-volume battery pack structure of detachable mixed style, including by same type of
Cylindrical electrical core is simultaneously unified into the cylindrical electrical core module 10 in parallel for drawing positive negative conductor, by same type of square battery core and is unified into
One is drawn the square battery core module 20 in parallel of positive negative conductor, positive and negative at an extraction by same type of polymer battery core parallel connection
The parallel polymerization object battery core module 30 of conducting wire；Cylindrical electrical core module 10, square battery core module 20 in parallel and parallel polymerization in parallel
Object battery core module 30 is welded to form a battery pack by conducting wire and protection board 40.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is by the consistent cylindrical lithium ion battery of voltage platform, square lithium ion battery, polymer Li-ion
It after the forms such as battery are inconsistent, capacity is inconsistent lithium ion battery parallel connection welding, then welds with protection board, protection board has pressurization
Function forms battery pack of different shapes, to form the battery pack of increase-volume pressurization.
The invention enables, the shape requirement various shapes (capacity of two battery poor for the different battery consistencies of application
Differ greatly, can not connect and apply in groups) detachable battery occasion, using above-mentioned encapsulating structure of the invention,
Battery structure can be made compact, diversified, the capacity density for reaching battery maximizes and the strong guarantee of structural reliability, and cost
It is lower.
Detailed description of the invention
The encapsulating structure that Fig. 1 show the lithium ion battery parallel connection pressurization increase-volume battery pack structure of detachable mixed style shows
It is intended to；
Fig. 2A -2E is the structural schematic diagram of cylindrical electrical core module in parallel respectively；
Fig. 3 A-3D is square battery core module structural schematic diagram in parallel respectively；
The structural schematic diagram of Fig. 4 A-4D difference parallel polymerization object battery core module；
Fig. 5 be cylindrical electrical core module in parallel, square battery core module in parallel, parallel polymerization object battery core module stack and with guarantor
Guard board association schematic diagram；
Fig. 6 A-6B is the shell and decomposition diagram of battery pack respectively.
In figure:
10-cylindrical electrical core modules in parallel；
1001-cylindrical electrical cores；1002-cylindrical electrical cores anode nickel sheet in parallel；1003-cylindrical electrical core cathode parallel connection nickel sheet；
The positive extraction wire of 1004-cylindrical electrical core modules in parallel；The cathode extraction wire of 1005-cylindrical electrical core modules in parallel；
20-square battery core modules in parallel；
2001-square battery cores；2002-cathode caps；2003 full package adhesive tapes；2004-double-sided adhesives；2005-outer gaskets；
2006-second class protection PTC；
2007-battery core cathode parallel connection nickel sheet；2008-battery cores anode nickel sheet in parallel；
The positive extraction wire of 2009-square battery core modules in parallel；
The cathode extraction wire of 2010-square battery core modules in parallel；
30-parallel polymerization object battery core modules；
3001-polymer battery cores；
Insulating tape is wrapped up on 3002-sides and bottom edge；3003-battery core anode ears；3004-battery core negative electrode lugs；3005—
Groove adhesive tape；3006-second class protection TCO；3007-insulation hardboards；
3008-polymer battery core anode nickel sheet in parallel；
3009-polymer battery core anode nickel sheet in parallel；
The positive extraction wire of 3010-parallel polymerization object battery core modules；
The positive extraction wire of 3011-parallel polymerization object battery core modules；
40-protection boards；
50-highland barley paper；
60-buffering foams；
70- plastics top shell；
80-plastics bottom cases；
90-stainless steel steel shells.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.
The consumer lithium ion battery parallel connection pressurization increase-volume battery pack structure of the detachable mixed style of the present invention is by voltage
The forms such as the consistent cylindrical lithium ion battery of platform, square lithium ion battery, polymer Li-ion battery are inconsistent, capacity not
It is welded again with protection board after consistent lithium ion battery parallel connection welding, forms battery core module, the battery core module after welding is assembled green
Highland barley paper, buffering foam and shell, shell are made of plastic cement top shell, plastic pan, stainless steel steel shell, the head of battery and portion
Do not wrapped up in using highland barley paper bag, then paste buffering foam, so that battery pack is had pooling feature in shell, thus manufacture formed it is removable
Unload finished battery.
As shown in Figure 1, the lithium ion battery parallel connection of detachable mixed style is pressurized increase-volume battery pack structure, including by of the same race
The cylindrical electrical core of type is simultaneously unified into the cylindrical electrical core module 10 in parallel for drawing positive negative conductor, by same type of square battery core
And it is unified into the square battery core module 20 in parallel for drawing positive negative conductor, drawn by same type of polymer battery core parallel connection at one
The parallel polymerization object battery core module 30 of positive negative conductor out；Cylindrical electrical core module 10 in parallel, square battery core module 20 in parallel and simultaneously
Linked polymer battery core module 30 is welded to form a battery pack by conducting wire and protection board 40.
As shown in Fig. 2A -2E, every cylindrical electrical core 1001 fastens with glue out required in cylindrical electrical core module 10 in parallel
Shape, the anode of every cylindrical electrical core are required to through cylindrical electrical core anode 1002 resistance welding of nickel sheet in parallel, every cylinder electricity
The cathode of core is required to through round 1003 resistance welding of battery core cathode parallel connection nickel sheet, then draws cylinder electricity in parallel by soldering
The positive extraction wire 1004 and cathode extraction wire 1005 of core module 10.
As shown in figs. 3 a-3d, in square battery core module 20 in parallel, since square battery core 2001 is in addition to 2002 part of cathode cap
Polarity is negative, other position polarity are positive, so being wrapped up square battery core anode portion entirely by package adhesive tape 2003 entirely, so
Every square battery core pastes shape required out by double-sided adhesive 2004 afterwards, pastes on the cathode cap 2002 of every square battery core
Second class protection PTC2006, is then pasted on outer gasket by outer gasket 2005, is close to second class protection PTC2006 negative pole end negative
Then the cathode of square battery core and 1 second class protection PTC2006 are resistance welded by polar cap 2002, then by every square
Battery core by cathode nickel sheet 2007 in parallel with square battery core cathode that second class protection PTC2006 is drawn by electric resistance welding, every
The anode of square battery core, by electric resistance welding, is then drawn by soldering in parallel by square battery core anode nickel sheet 2008 in parallel
The positive extraction wire 2009 and cathode extraction wire 2010 of square battery core module (20).
As shown in figs. 4 a-4d, the side and bottom edge of every polymer battery core 3001 are equal in parallel polymerization object battery core module 30
Wrap up insulating tape 3002,3004 between the anode ear 3003 and negative electrode lug of polymer battery core 3001 between wrap up groove adhesive tape 3005,
In the anode welding second class protection TCO3006 of every polymer battery core, then will be inserted in porose insulation hardboard 3007
3004 end of TCO3006 exit and polymer battery core negative electrode lug, it is then that TCO3006 exit is in parallel with polymer battery core anode
Nickel sheet 3008, negative electrode lug 3004 nickel sheet 3009 in parallel with polymer battery core cathode are welded by Laser Welding, are then drawn by soldering
The positive extraction wire 3010 and cathode extraction wire 3011 of parallel polymerization object battery core module (30) out.
As shown in figure 5, by the positive extraction wire 1004 of cylindrical electrical core module 10 in parallel and square battery core module 20 in parallel
Positive extraction wire 2009 weld, then with the positive extraction wire 3010 of parallel polymerization object battery core module 30 weld, then
It is welded with the anode of protection board 40；The cathode extraction wire 1005 of cylindrical electrical core module 10 in parallel and square battery core module 20 in parallel
Cathode extraction wire 2010 weld, then with the cathode extraction wire 3011 of parallel polymerization object battery core module 30 weld, then
It is welded with the cathode of protection board 40；
As shown in Fig. 1 and 6A-6B, then the head of battery pack, tail portion and side are assembled to highland barley paper 50 and buffering
Foam 60, then battery pack head and tail portion use plastic cement top shell 70 and bottom case 80 respectively, and the main body section of battery pack fastens not
Become rusty steel steel shell 90, so that manufacture ultimately forms finished battery at detachable pressurization increase-volume battery pack structure.
Wherein, the protection board 40 can be is made of charging module, discharge module, radiating module, boost module, is existing
There is the structure of the protection board of battery, is no longer described in detail.
In conclusion the consumer lithium ion battery parallel connection of detachable mixed style provided by the invention is pressurized increase-volume battery
Group structure, by the structure of battery pack can not only realized changeable for the lithium ion battery parallel connection of different shape, but also due to
The capacity of different batteries be it is discrepant, can not connect and apply in groups, can by parallel connection can preferably send out in groups
Battery performance is waved, can effectively improve the capacity utilization that echelon utilizes battery, reduces the totle drilling cost of battery investment, is realized good
Economic benefit, along with the protection board of design has function of increasing pressure, thus make different shape battery core parallel connection reach increase-volume pressurization
Effect is conducive to the market application prospect for improving cell production companies product, is of great practical significance.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. the lithium ion battery parallel connection of detachable mixed style a kind of is pressurized increase-volume battery pack structure, which is characterized in that including by
Same type of cylindrical electrical core is simultaneously unified into the cylindrical electrical core module (10) in parallel for drawing positive negative conductor, by same type of side
Type battery core is simultaneously unified into the square battery core module (20) in parallel for drawing positive negative conductor, in parallel by same type of polymer battery core
The parallel polymerization object battery core module (30) of positive negative conductor is drawn at one；Cylindrical electrical core module (10) in parallel, square battery core in parallel
Module (20) and parallel polymerization object battery core module (30) pass through conducting wire and protection board (40) are welded to form a battery pack.
2. the lithium ion battery parallel connection of detachable mixed style is pressurized increase-volume battery pack structure, feature as described in claim 1
It is, the parallel connection cylindrical electrical core module (10), square battery core module (20) in parallel, parallel polymerization object battery core module (30) are in parallel
Then welding is welded with protection board (40) again.
3. the lithium ion battery parallel connection of detachable mixed style is pressurized increase-volume battery pack structure, feature as described in claim 1
It is, every cylindrical electrical core (1001) fastens with glue out required shape in parallel connection cylindrical electrical core module (10), and every
For the anode of cylindrical electrical core by cylindrical electrical core anode nickel sheet (1002) resistance welding in parallel, the cathode of every cylindrical electrical core is logical
Round battery core cathode parallel connection nickel sheet (1003) resistance welding is crossed, and draws the anode of cylindrical electrical core module (10) in parallel by soldering
Extraction wire (1004) and cathode extraction wire (1005).
4. the lithium ion battery parallel connection of detachable mixed style is pressurized increase-volume battery pack structure, feature as claimed in claim 3
It is, is by wrapping up adhesive tape (2003) entirely for square battery core (2001) anode portion in the parallel connection square battery core module (20)
Divide full package, every square battery core (2001) pastes shape required out, every square battery core by double-sided adhesive (2004)
(2001) outer gasket (2005) is pasted on cathode cap (2002), second class protection PTC (2006) is pasted on outer gasket, makes second level
PTC (2006) negative pole end is protected to be close to cathode cap (2002), the cathode of square battery core and a second class protection PTC (2006) carry out
Resistance welding, the cathode nickel in parallel with square battery core cathode that every square battery core (2001) is drawn by second class protection PTC (2006)
Piece (2007) passes through electricity by square battery core anode nickel sheet (2008) in parallel by electric resistance welding, the anode of every square battery core
Welding resistance welding, and pass through the positive extraction wire (2009) and cathode extraction wire of soldering extraction square battery core module (20) in parallel
(2010)。
5. the lithium ion battery parallel connection of detachable mixed style is pressurized increase-volume battery pack structure, feature as claimed in claim 4
It is, insulating cement is wrapped up in the side and bottom edge of every polymer battery core (3001) in the parallel polymerization object battery core module (30)
Band (3002) wraps up groove adhesive tape (3005) between (3004) between the anode ear (3003) and negative electrode lug of polymer battery core (3001),
Anode welding second class protection TCO (3006) of every polymer battery core, is inserted in TCO (3006) with porose insulation hardboard (3007)
Exit and polymer battery core negative electrode lug (3004) end, second class protection TCO (3006) exit are in parallel with polymer battery core anode
Nickel sheet (3008), negative electrode lug (3004) nickel sheet (3009) in parallel with polymer battery core cathode are welded by Laser Welding, and pass through tin
The positive extraction wire (3010) and cathode extraction wire (3011) of parallel polymerization object battery core module (30) are drawn in weldering.
6. the lithium ion battery parallel connection of detachable mixed style is pressurized increase-volume battery pack structure, feature as described in claim 1
It is, the positive and negative anodes of the protection board (40) and cylindrical electrical core module (10) in parallel, square battery core module (20) in parallel and in parallel
The positive and negative polarity wire of electrostrictive polymer core module (30) is connected by soldering.
7. the lithium ion battery parallel connection of detachable mixed style is pressurized increase-volume battery pack structure, feature as claimed in claim 5
It is, the cylindrical electrical core (1001), square battery core (2001), the voltage platform of polymer battery core (3001) are consistent, capacity phase
It is same or variant.
8. the lithium ion battery parallel connection of detachable mixed style is pressurized increase-volume battery pack structure, feature as described in claim 1
It is, head, tail portion and the side of the battery pack assemble that highland barley paper (50) are gentle to brew cotton (60).
9. the lithium ion battery parallel connection of detachable mixed style is pressurized increase-volume battery pack structure, feature as claimed in claim 8
It is, the battery pack head and tail portion use plastic cement top shell (70) and bottom case (80), the main body section button of battery pack respectively
It closes stainless steel steel shell (90).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910423747.0A CN110311164B (en) | 2019-05-21 | 2019-05-21 | Detachable mixed-form lithium ion battery parallel-connection pressurizing and capacity-increasing battery pack structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910423747.0A CN110311164B (en) | 2019-05-21 | 2019-05-21 | Detachable mixed-form lithium ion battery parallel-connection pressurizing and capacity-increasing battery pack structure |
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| CN110311164A true CN110311164A (en) | 2019-10-08 |
| CN110311164B CN110311164B (en) | 2022-06-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525057A (en) * | 2020-03-20 | 2020-08-11 | 天津力神电池股份有限公司 | Round soft-package polymer lithium ion battery and assembly method |
| WO2023029851A1 (en) * | 2021-08-30 | 2023-03-09 | 陕西奥林波斯电力能源有限责任公司 | Method for manufacturing high capacity battery, and high capacity battery |
| WO2023065932A1 (en) * | 2021-10-21 | 2023-04-27 | 宁德时代新能源科技股份有限公司 | Battery pack and electrical apparatus |
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| CN105428581A (en) * | 2015-11-27 | 2016-03-23 | 上海航天电源技术有限责任公司 | Switch-type lithium ion battery module and switching method for same |
| CN111063853A (en) * | 2019-11-07 | 2020-04-24 | 华富(江苏)锂电新技术有限公司 | Device for realizing convergence of multiple cylindrical lithium ion batteries |
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Patent Citations (3)
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| JP2000294270A (en) * | 1999-04-12 | 2000-10-20 | Toshiba Battery Co Ltd | Manufacture of rectangular alkali secondary battery |
| CN105428581A (en) * | 2015-11-27 | 2016-03-23 | 上海航天电源技术有限责任公司 | Switch-type lithium ion battery module and switching method for same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525057A (en) * | 2020-03-20 | 2020-08-11 | 天津力神电池股份有限公司 | Round soft-package polymer lithium ion battery and assembly method |
| CN111525057B (en) * | 2020-03-20 | 2022-09-06 | 天津力神电池股份有限公司 | Circular soft-packaged polymer lithium ion battery and assembly method |
| WO2023029851A1 (en) * | 2021-08-30 | 2023-03-09 | 陕西奥林波斯电力能源有限责任公司 | Method for manufacturing high capacity battery, and high capacity battery |
| WO2023065932A1 (en) * | 2021-10-21 | 2023-04-27 | 宁德时代新能源科技股份有限公司 | Battery pack and electrical apparatus |
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| CN110311164B (en) | 2022-06-10 |
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Effective date of registration: 20230202 Address after: 300000 No.38 Haitai South Road, Huayuan Industrial Zone (outside the ring), High-tech Zone, Binhai New Area, Tianjin Patentee after: Tianjin Juyuan New Energy Technology Co.,Ltd. Address before: No.38, South Haitai Road, Binhai high tech Industrial Development Zone, Binhai New Area, Tianjin Patentee before: TIANJIN LISHEN BATTERY JOINT-STOCK Co.,Ltd. |