CN108321325B - Lightweight cylindrical lithium ion battery pack device - Google Patents

Lightweight cylindrical lithium ion battery pack device Download PDF

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Publication number
CN108321325B
CN108321325B CN201711494664.8A CN201711494664A CN108321325B CN 108321325 B CN108321325 B CN 108321325B CN 201711494664 A CN201711494664 A CN 201711494664A CN 108321325 B CN108321325 B CN 108321325B
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Prior art keywords
layer module
holes
layer
lithium ion
sheet
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CN201711494664.8A
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CN108321325A (en
Inventor
韩献堂
李钏
周君
付增英
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Cetc Blue Sky Technology Co ltd
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CETC 18 Research Institute
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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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0422—Cells or battery with cylindrical casing
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/643—Cylindrical cells
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • 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

Abstract

The invention discloses a light-weight cylindrical lithium ion battery pack device, which comprises: the single-layer module is cylindrical, a plurality of circular through holes are formed in the single-layer module, and the central axes of the circular through holes are parallel to the central axis of the single-layer module; the inner wall of each circular through hole is provided with a phase change lining material; the outer wall of the single-layer module is provided with an axial groove; the end face of the single-layer module is provided with an insulating sheet, and a confluence sheet is arranged between the end face of the single-layer module and the insulating sheet; the single-layer module, the bus sheet and the insulating sheet are provided with through holes for connection; the connecting string rod is used for connecting two adjacent single-layer modules, and external threads matched with the through holes are processed at the two ends of the connecting string rod; the two ends of the connecting string rod are inserted into the through holes of the adjacent single-layer modules and fastened by nuts, so that the connection of the single-layer modules is realized. The phase-change material is adopted in the patent, and the phase-change material absorbs and stores heat when the battery heats and releases heat when the temperature is lower, so that the purpose of maintaining the temperature of the battery is achieved.

Description

Lightweight cylindrical lithium ion battery pack device
Technical Field
The invention relates to the technical field of near space aircrafts, in particular to a light-weight cylindrical lithium ion battery pack device.
Background
Because the lithium ion battery has the advantages of high specific energy, stable discharge voltage, good reliability, good safety and the like, the lithium ion battery is applied to aerospace at present, and particularly becomes a poor choice due to the characteristic of high specific energy in the near space field.
At present, the cylindrical lithium ion battery pack generally means that the adopted lithium ion single battery is cylindrical, the structural form of the battery pack is a cuboid form, and in addition, the adopted structural material is generally a metal material or engineering plastic and the like, so that the cylindrical lithium ion battery pack has no applicability to special application environments such as adjacent space and the like, and needs to consider a unified design in the aspects of heat preservation and light weight.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: providing a lightweight cylindrical lithium ion battery pack device; this whole appearance of lightweight cylindricality lithium ion battery group device is cylindrical, can be convenient install in solar unmanned aerial vehicle's tubular beams, secondly, this device adopts the PMI foam as structural material, also can play the heat retaining effect to the battery when lightening group battery structure weight, and again, this device has adopted phase change material as the means of adjusting temperature, phase change material heat absorption when the battery generates heat, the heat-retaining, can release heat again when the temperature is lower, play the purpose of maintaining the battery temperature, heat preservation has been considered, the unified design in the aspect of the lightweight.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows:
a lightweight cylindrical lithium ion battery pack device comprising at least:
the single-layer module (1) is processed by a plurality of PMI foam materials, the single-layer module (1) is cylindrical, a plurality of circular through holes are formed in the single-layer module (1), and the central axes of the circular through holes are parallel to the central axis of the single-layer module (1); the inner wall of each circular through hole is provided with a phase change lining material (1-2); insulating sheets (1-4) are arranged on two end faces of the single-layer module (1), and a confluence sheet (1-3) is arranged between the end face of the single-layer module (1) and the insulating sheets (1-4); through holes for connection are formed in the single-layer module (1), the insulating sheets (1-4) and the insulating sheets (1-4); an axial groove is formed in the outer wall of the single-layer module (1);
the connecting string rod (2) is used for connecting two adjacent single-layer modules (1), and external threads matched with the through holes are machined at two ends of the connecting string rod (2);
and two ends of the connecting string rod (2) are inserted into the through holes of the adjacent single-layer modules (1) so as to realize the connection of the plurality of single-layer modules (1).
Further: the outer walls of the battery packs which are connected in sequence are provided with cylindrical tubular beams (3).
Further: the connecting string rod (2) is made of titanium alloy materials.
Further: the insulating sheets (1-4) are made of laminated glass cloth.
The invention has the advantages and positive effects that:
1. the light-weight cylindrical lithium ion battery pack device is cylindrical in overall appearance and can be conveniently arranged in a tubular beam of a solar unmanned aerial vehicle
2. The invention adopts PMI foam as a structural material, can play a role in preserving the heat of the battery while reducing the structural weight of the battery pack,
3. the phase-change material is adopted as a temperature adjusting means, the phase-change material absorbs and stores heat when the battery heats, and releases heat when the temperature is lower, so that the purpose of maintaining the temperature of the battery is achieved, and the unified design in the aspects of heat preservation and light weight is considered.
4. The invention adopts the design of the confluence plate, has simple structure, is convenient to process and install.
Drawings
FIG. 1 is a block diagram of a preferred embodiment of the present invention;
fig. 2 is a block diagram of a single layer module in a preferred embodiment of the invention.
Wherein: 1. a single-layer module; 1-1, PMI structural main body; 1-2, phase change lining material; 1-3, confluence sheet; 1-4, an insulating sheet; 2-connecting the string rods; 3-tubular beams.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1, a light-weight cylindrical lithium ion battery pack device includes:
the single-layer module 1 is formed by processing a plurality of PMI foam materials, the whole single-layer module 1 is cylindrical, a plurality of circular through holes are formed in the single-layer module 1, and the central axes of the circular through holes are parallel to the central axis of the single-layer module 1; the inner wall of each circular through hole is provided with a phase change lining material 1-2; an axial groove is formed in the outer wall of the single-layer module 1; two end faces of the single-layer module 1 are provided with insulating sheets 1-4, and a manifold sheet 1-3 is arranged between the end face of the single-layer module 1 and the insulating sheets 1-4; through holes for connection are formed in the single-layer module 1, the confluence sheets 1-3 and the insulation sheets 1-4;
the connecting string rod 2 is used for connecting two adjacent single-layer modules 1, and external threads matched with the through holes are processed at two ends of the connecting string rod 2;
the two ends of the connecting string rod 2 are inserted into the through holes of the adjacent single-layer modules 1, and the two ends are fastened by nuts, so that the connection of the single-layer modules 1 is realized.
To protect the battery pack: the cylindrical tubular beams 3 are arranged on the outer walls of the battery packs which are connected in sequence.
The manufacturing process of the preferred embodiment is as follows:
manufacturing a single-layer module 1, referring to fig. 1 and fig. 2, selecting a PMI foam material as a structural material of a PMI structure main body 1-1, machining a round cake, machining two grooves on two sides of the round cake for a cable routing channel, machining a required round hole on the round cake for installing a lithium ion battery, and machining six small round holes for fixing a string rod;
manufacturing a connecting string rod: the connecting rod is made of high-strength and light metal materials and titanium alloy materials, external threads are machined at two ends of the connecting rod and used for module connection, and the titanium alloy pipes are adopted, and the external threads are formed by sleeving and buckling the two ends of the connecting rod;
manufacturing the confluence sheet: the nickel sheet with the corresponding thickness is adopted, and the processing die is used, so that the confluence sheet can be processed and formed by a stamping method;
manufacturing an insulating sheet: the insulating sheet is made of glass fiber reinforced plastic, the structural appearance is simpler, and the insulating sheet can be cut into a circle by a laser cutting method.
In the preferred embodiment described above: the PMI structure body is a circular honeycomb block material processed by PMI foam material and comprises a plurality of holes, each hole is embedded with a cylindrical lithium ion battery, and the height of the PMI structure body is consistent with that of the battery; the phase-change material is used for winding the lithium ion battery monomer to form a cylindrical body and is arranged in the hole of the structural body; the confluence sheet is paved on a battery electrode and is firmly welded through spot welding to form a battery pack; the insulating sheet covers the bus sheet to play a role in electrical insulation; a plurality of single-layer modules can be stacked together and fixed together by connecting string rods to form a lithium ion battery pack device. Because the selected main material of the structure is the PMI foam material, the weight ratio of the structure can be greatly reduced, and the aim of light weight is fulfilled.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (1)

1. The utility model provides a lightweight cylindricality lithium ion battery group device which characterized in that: at least comprises the following steps:
the single-layer module (1) is processed by a plurality of PMI foam materials, the single-layer module (1) is cylindrical, a plurality of circular through holes are formed in the single-layer module (1), and the central axes of the circular through holes are parallel to the central axis of the single-layer module (1); the inner wall of each circular through hole is provided with a phase change lining (1-2) wound with a lithium ion battery monomer to form a cylindrical body; insulating sheets (1-4) are arranged on two end faces of the single-layer module (1), and a confluence sheet (1-3) is arranged between the end face of the single-layer module (1) and the insulating sheets (1-4); through holes for connection are formed in the single-layer module (1), the confluence sheet (1-3) and the insulation sheet (1-4); an axial groove is formed in the outer wall of the single-layer module (1);
the connecting string rod (2) is used for connecting two adjacent single-layer modules (1), and external threads matched with the through holes are machined at two ends of the connecting string rod (2);
a plurality of single-layer modules (1) are overlapped together; inserting two ends of the connecting string rod (2) into through holes of the adjacent single-layer modules (1), and fastening the two ends by nuts so as to realize the connection of the plurality of single-layer modules (1);
a cylindrical tubular beam (3) is arranged on the outer wall of the battery pack formed by connecting a plurality of battery packs in sequence;
the connecting string rod (2) is made of a titanium alloy material;
the insulating sheets (1-4) are made of laminated glass cloth materials;
the manufacturing process of the light-weight cylindrical lithium ion battery pack device comprises the following steps:
manufacturing a single-layer module, namely selecting a PMI foam material as a structural material of a PMI structural main body, machining a round cake, machining two grooves on two sides of the round cake for a cable routing channel, machining a required round hole on the round cake for installing a lithium ion battery, and machining six round holes for fixing a string rod;
manufacturing a connecting string rod: the connecting rod is made of titanium alloy materials, external threads are processed at two ends of the connecting rod and used for module connection, and the titanium alloy pipes are sleeved and buckled at the two ends to manufacture the external threads;
manufacturing the confluence sheet: adopting nickel sheets with corresponding thickness, using a processing die, and processing and molding the confluence sheet by a stamping method;
manufacturing an insulating sheet: the insulating sheet is made of glass fiber reinforced plastic and is cut into a circle by a laser cutting method.
CN201711494664.8A 2017-12-31 2017-12-31 Lightweight cylindrical lithium ion battery pack device Active CN108321325B (en)

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CN108321325B true CN108321325B (en) 2021-04-13

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US8049460B2 (en) * 2007-07-18 2011-11-01 Tesla Motors, Inc. Voltage dividing vehicle heater system and method
CN102074770B (en) * 2010-12-30 2014-04-09 广东工业大学 Shell-and-tube electrical automobile battery device with enhanced radiation function
US9843076B2 (en) * 2011-10-20 2017-12-12 Continental Structural Plastics, Inc. Energy cell temperature management
CN103138027A (en) * 2011-11-30 2013-06-05 庄嘉明 High thermal conductivity battery pack
CN104241730B (en) * 2013-06-13 2018-03-20 南京德朔实业有限公司 Battery pack with heat dissipation system
CN105990538B (en) * 2015-02-10 2019-12-20 广东万锦科技股份有限公司 Tube-shell type heat exchange power battery module device and manufacturing method
CN107230749A (en) * 2016-03-25 2017-10-03 深圳市沃特玛电池有限公司 A kind of Li-ion batteries piles
CN106252549B (en) * 2016-08-01 2019-03-19 上海豪骋智能科技有限公司 A kind of lightweight, safe battery core bracket and power battery pack
CN106684285A (en) * 2017-03-07 2017-05-17 上海工程技术大学 Grating composite radiator for battery pack
CN107017447B (en) * 2017-03-13 2019-06-07 浙江超威创元实业有限公司 Bicycle lithium battery phase change thermal management package assembly
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Effective date of registration: 20211126

Address after: 300384 No. 6 Huake No. 7 Road, Binhai New Area, Tianjin Binhai High-tech Industrial Development Zone

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Patentee after: CETC Energy Co.,Ltd.

Address before: 300384 No. 6 Huake No. 7 Road, Binhai New Area, Tianjin Binhai High-tech Industrial Development Zone

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Address after: 300384 No. 6 Huake No. 7 Road, Binhai New Area, Tianjin Binhai High-tech Industrial Development Zone

Patentee after: CETC Blue Sky Technology Co.,Ltd.

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