WO2024139987A1 - 一种热平衡电池包和电池包储能系统 - Google Patents

一种热平衡电池包和电池包储能系统 Download PDF

Info

Publication number
WO2024139987A1
WO2024139987A1 PCT/CN2023/135417 CN2023135417W WO2024139987A1 WO 2024139987 A1 WO2024139987 A1 WO 2024139987A1 CN 2023135417 W CN2023135417 W CN 2023135417W WO 2024139987 A1 WO2024139987 A1 WO 2024139987A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
battery pack
plate
battery module
end plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/135417
Other languages
English (en)
French (fr)
Inventor
汪兵
尹利超
徐中华
钱振华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Envision Energy Co Ltd
Original Assignee
Envision Energy Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Envision Energy Co Ltd filed Critical Envision Energy Co Ltd
Priority to EP23909917.9A priority Critical patent/EP4618246A4/en
Priority to AU2023416987A priority patent/AU2023416987A1/en
Publication of WO2024139987A1 publication Critical patent/WO2024139987A1/zh
Priority to US19/183,087 priority patent/US20250246709A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • 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
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • 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
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • H01M10/647—Prismatic or flat cells, e.g. pouch 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
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • 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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • 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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • 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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/51—Connection only in series
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
    • H01M50/522—Inorganic material
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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

Definitions

  • the thermally conductive adhesive has a thermal conductivity of 0.5-3W/mK;
  • the phase change temperature equalizing plate has microchannels inside and is infused with phase change working fluid.
  • the present invention has the following beneficial effects:
  • the structure of the present invention further simplifies the battery cluster structure, forms a CTR energy storage system by directly connecting the battery pack, omits the battery pack integration step, has a simple structure, further reduces the number of parts, and lowers the cost. At the same time, it improves the space utilization of the energy storage system and reduces the weight.
  • FIG3 is a schematic diagram of the battery module structure of the present invention.
  • FIG7 is a schematic diagram of the structure of the energy storage system of the present invention.
  • battery management module 309. wiring harness, 310. upper cover, 321. terminal block, 400. frame, 401. support frame, 402. vertical beam, 403. limit bracket.
  • the battery module 200 includes a plurality of battery cells 101, a thermally conductive adhesive 102 and a phase change temperature plate 103; the phase change temperature plate 103 is connected to the side of the battery cell 101, and is used to equalize the temperature difference of the battery cell 101 in all directions; the thermally conductive adhesive 102 is located between the battery cell 101 and the phase change temperature plate 103, and is squeezed by the liquid cooling plate 305 during assembly to make the battery cell 101 fully contact with the phase change temperature plate 102, thereby reducing thermal resistance and conducting the heat from the side of the battery cell 101 to the phase change temperature plate 103; the plurality of battery cells 101 are connected in series; a collection circuit module 201 is provided on the top of the battery module 200, and is used to collect the voltage and temperature of the battery cell 101; the collection circuit module 201 includes a battery cell voltage collection terminal, a battery cell temperature collection terminal and an overcurrent aluminum bus; the The cell voltage collection terminal and the cell temperature collection terminal are welded on the overcurrent aluminum busbar;
  • the front end plate 302 is provided with a terminal seat 321 and a battery management module 308; the battery management module 308 is connected to the acquisition line module 201 through the line speed 309, and is used to detect the voltage and temperature conditions of the battery cell 101; the rear of the front end plate 302 and the rear end plate 303 are both provided with grooves for limiting and fixing when assembled into an energy storage system; a reinforcing beam is provided at the bottom of the bottom plate 304 to support the weight of the battery module 200.
  • a battery pack energy storage system using the thermal balance battery pack described above wherein the energy storage system comprises a frame 400, a support frame 401, a vertical beam 402 and a plurality of position limiting brackets 403;
  • the number of the support frames 401 is two, which are fixed on both sides of the frame 400, respectively, and are used to contact the bottom plate 304 of the battery pack 300 to support the weight of the battery pack 300;
  • the vertical beam 402 is fixed on the rear side of the frame 400, and is used to cooperate with the groove of the rear end plate 303 to limit the battery pack 300 to the left and right;
  • the plurality of position limiting brackets 403 are fixed on the vertical beam 402, and are used to limit the battery pack 300 in the vertical direction;
  • the plurality of position limiting brackets 403 are evenly fixed on the vertical beam 402 by welding.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Inorganic Chemistry (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本发明涉及一种热平衡电池包和电池包储能系统，所述的电池包包括电池模块、前端板、后端板、底板、液冷板和上盖；所述的前端板放置在电池模块前端；所述的后端板放置在电池模块后端；所述的底板位于电池模块底端；所述的液冷板内部设置流道；所述的液冷板为两个，分别置于电池模块两侧，用于通过冷却液带走电池模块的热量；所述的液冷板与电池模块之间设置导热垫；所述的液冷板外侧设置隔热贴；所述的电池模块通过铜排连接正负极输出端；所述的铜排安装在前端板上；所述的前端板、后端板、底板、液冷板和上盖通过紧固件固定为一个包裹住电池模块的长方体形的框架结构。与现有技术相比，本发明具有温差均匀、散热效果好、结构简单等优点。

Description

一种热平衡电池包和电池包储能系统 技术领域
本发明涉及电力储能领域，尤其是涉及一种热平衡电池包和电池包储能系统。
背景技术
随着电动汽车行业的快速发展，对电池包的需求越来越大，电池包的安全问题也显得尤为重要。在电池包运作为汽车提供动力时，电池包会产生较高的温度，如不及时进行散热，则会造成电池包的损坏，影响电动汽车的使用，甚至带来安全风险。
而当前液冷电池包的液冷方式主要以底部液冷为主，对于方形电芯在电芯高度方向上(电芯极柱与电芯壳体底部)温差较大，随着高度的增加，如市场常见的280Ah(174X74X204宽厚高)，如采用底部液冷方式存在7-10℃温差，单体电芯顶部和底部的温差对电芯的循环寿命及安全性产生较大的影响，且当前市场上电池包主要由模组、液冷系统、箱体等关键零部件组成，结构较复杂，成本较高；当前市场上的液冷储能系统，一般由电芯(cell)集成为液冷模组，通过模组组成电池包(Pack)，再通过电池包串联成组为电池簇(Rack)，电池包接口众多，结构复杂。
因此，如何实现高性能热平衡的电池包，以及结构简单的电池包储能系统，成为需要解决的技术问题。
发明内容
本发明的目的就是为了克服上述现有技术存在的缺陷而提供一种热平衡电池包和电池包储能系统。
本发明的目的可以通过以下技术方案来实现：
一种热平衡电池包，所述的电池包包括电池模块、前端板、后端板、底板、液冷板和上盖；所述的前端板放置在电池模块前端；所述的后端板放置在电池模块后端；所述的底板位于电池模块底端；所述的液冷板内部设置流道，用于冷却液流通； 所述的液冷板为两个，分别置于电池模块两侧，用于通过液冷板中的冷却液带走电池模块的热量；所述的液冷板与电池模块之间设置导热垫；所述的液冷板外侧设置隔热贴，用于隔绝热量；所述的电池模块通过铜排连接正负极输出端；所述的铜排安装在前端板上；所述的前端板、后端板、底板、液冷板和上盖通过紧固件固定为一个包裹住电池模块的长方体形的框架结构。
进一步地，所述的电池模块包括多个电芯、导热胶和相变均温板；所述的相变均温板与电芯侧面连接，用于将电芯各向温差进行均温；所述的导热胶位于电芯和相变均温板之间，用于将电芯侧面热量传导至相变均温板；多个所述的电芯通过串联连接。
进一步地，所述的电池模块顶部设置有采集线路模块，用于采集电芯的电压和温度；所述的采集线路模块包括电芯电压采集端子、电芯温度采集端子和过流铝排；所述的电芯电压采集端子和电芯温度采集端子焊接在过流铝排上；所述的过流铝排与电芯的极柱焊接形成导电回路。
进一步地，所述的电池模块两端设置弹性元件，用于吸收电芯厚度公差。
进一步地，所述的前端板上设置有端子座和电池管理模块；所述的电池管理模块通过线速与采集线路模块连接，用于检测电芯的电压和温度状况。
进一步地，所述的导热胶为导热系数0.5-3W/mK的导热胶；所述的相变均温板内部具备微通道，并灌注相变工质。
进一步地，所述的前端板和后端板的后部均开有凹槽，用于组装成储能系统时进行限位固定；所述的底板底部设置加强横梁，用于支撑电池模组的重量。
一种采用所述的热平衡电池包的电池包储能系统，所述的储能系统包括边框、支撑架、竖梁和多个限位支架；所述的支撑架为两个，分别固定在边框两侧，用于与电池包的底板接触，支撑电池包重量；所述的竖梁固定在边框后侧，用于与后端板的凹槽配合，对电池包进行左右限位；多个所述的限位支架固定在竖梁上，用于对电池包进行竖直方向限位；所述的前端板通过凹槽和两侧的支撑架连接。
进一步地，多个所述的限位支架通过焊接均匀固定在竖梁上。
进一步地，所述的储能系统包括多个电池包；多个所述的电池包之间通过串联铜排进行电连接。
与现有技术相比，本发明具有以下有益效果：
一、本发明通过电芯间布置相变均温板使电芯在各向温差减小至2℃以内，解 决电芯单体上下温差过大的问题，使得电芯达到高性能的热平衡，安全可靠，有效防止由于过热导致电芯损坏和安全事故。
二、本发明通过在电池包侧方布置液冷板与相变均温板接触将电芯的热量带走，在大倍率下1C连续充放电下可将电池包的温差控制在3-5℃以内，有效的进行热平衡和散热。
三、本发明结构进一步简化电池簇结构，通过电池包直连形成CTR形式的储能系统，省略电池包集成步骤，结构简单，零部件数量进一步减少，成本更低，同时提高储能系统的空间利用率，减轻重量；
附图说明
图1为本发明的电池包结构示意图；
图2为本发明的电池模块成品示意图；
图3为本发明的电池模块结构示意图；
图4为本发明的电芯与相变均温板安装结构示意图；
图5为本发明的底板结构示意图；
图6为本发明的电池包安装成品示意图；
图7为本发明的储能系统结构示意图；
图8为本发明的电池包在储能系统中左右限位示意图；
图9为本发明的电池包在储能系统中竖直方向限位示意图；
图10为本发明的储能系统中多个电池包串联示意图。
图中标号所示为：
101、电芯，102、导热胶，103、相变均温板，200、电池模块，201、采集线路模块，202、弹性元件，300、电池包，301、铜排，302、前端板，303、后端板，304、底板，305、液冷板，306、导热垫，307、隔热贴，308、电池管理模块，309、线束，310、上盖，321、端子座，400、边框，401、支撑架，402、竖梁，403、限位支架。
具体实施方式
下面结合附图和具体实施例对本发明进行详细说明。本实施例以本发明技术方案为前提进行实施，给出了详细的实施方式和具体的操作过程，但本发明的保护范围不限于下述的实施例。
实施例
如图1和2所示，一种热平衡电池包，所述的电池包300包括电池模块200、前端板302、后端板303、底板304、液冷板305和上盖310；所述的前端板302可采用铝型材或者压铸件形式，放置在电池模块200前端，用于承受电池模块200的末期膨胀力；所述的后端板303可采用铝型材或者压铸件形式，放置在电池模块200后端，用于承受电池模块200的末期膨胀力；所述的底板304可采用铝值钢质或者钢质材料，位于电池模块200底端，采用结构胶或导热结构胶与电池模块200底部粘结；所述的液冷板305可采用铝值钢质或者钢质材料，内部设置流道，用于冷却液流通；所述的液冷板305为两个，分别置于电池模块200两侧，用于通过液冷板305中的冷却液带走电池模块200的热量；所述的液冷板305与电池模块200之间设置导热垫306；所述的液冷板305外侧设置隔热贴307，用于隔绝热量；所述的电池模块200通过铜排301连接正负极输出端；所述的铜排301安装在前端板302上；所述的上盖310为绝缘、阻燃非金属材质，用于绝缘防护；所述的前端板302、后端板303、底板304、液冷板305和上盖310通过紧固件311固定为一个包裹住电池模块200的长方体形的框架结构，用于约束电池模组200避免因重量过大导致脱落。
如图3和4所示，所述的电池模块200包括多个电芯101、导热胶102和相变均温板103；所述的相变均温板103与电芯101侧面连接，用于将电芯101各向温差进行均温；所述的导热胶102位于电芯101和相变均温板103之间，在装配时通过液冷板305挤压，使电芯101与相变均温板102充分接触，减小热阻，用于将电芯101侧面热量传导至相变均温板103；多个所述的电芯101通过串联连接；所述的电池模块200顶部设置有采集线路模块201，用于采集电芯101的电压和温度；所述的采集线路模块201包括电芯电压采集端子、电芯温度采集端子和过流铝排；所述的电芯电压采集端子和电芯温度采集端子焊接在过流铝排上；所述的过流铝排与电芯101的极柱焊接形成导电回路；所述的电池模块200两端设置弹性元件202，用于吸收电芯101厚度公差，确保两侧液冷板305与前端板302和后端板303的装配，同时起到隔热作用，避免电池模块200两端电芯101由于端板散热导致电池包300内温差进一步拉大，且随着电芯101循环末期厚度增加进一步压缩弹性元件202，弹性元件202同时提供更大的回弹应力，减缓电芯101的寿命快速衰减；所述的导热胶102为导热系数0.5-3W/mK的导热胶；所述的相变均温板103内部具备微通 道，并灌注相变工质，具备高传热密度，可达600W/cm2～1000W/cm2；高导热性能，导热系数可达4000～10000W/m·K；高均温特性，可实现长距离的温差控制在1℃以内。
如图5和6所示，所述的前端板302上设置有端子座321和电池管理模块308；所述的电池管理模块308通过线速309与采集线路模块201连接，用于检测电芯101的电压和温度状况；所述的前端板302和后端板303的后部均开有凹槽，用于组装成储能系统时进行限位固定；所述的底板304底部设置加强横梁，用于支撑电池模组200的重量。
如图7～10所示，一种采用所述的热平衡电池包的电池包储能系统，所述的储能系统包括边框400、支撑架401、竖梁402和多个限位支架403；所述的支撑架401为两个，分别固定在边框400两侧，用于与电池包300的底板304接触，支撑电池包300重量；所述的竖梁402固定在边框400后侧，用于与后端板303的凹槽配合，对电池包300进行左右限位；多个所述的限位支架403固定在竖梁402上，用于对电池包300进行竖直方向限位；多个所述的限位支架403通过焊接均匀固定在竖梁402上；所述的储能系统包括多个电池包300；组装时，将电池包300依次放置在支撑架401上，向内推入，后端通过竖梁402和限位支架403分别约束左右及上下跳动；前端通过电池包300的前端板302上的凹槽与两侧支撑架401框架连接，多个所述的电池包300之间通过串联铜排进行电连接，形成CTR(Cell to Rack，电芯101到电池簇)形式的储能系统，省略电池包300的集成步骤，结构简单，零部件数量进一步减少，成本更低，同时提高储能系统的空间利用率，减轻重量。
以上详细描述了本发明的较佳具体实施例。应当理解，本领域的普通技术人员无需创造性劳动就可以根据本发明的构思作出诸多修改和变化。因此，凡本技术领域中技术人员依本发明的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案，皆应在由权利要求书所确定的保护范围内。

Claims (10)

  1. 一种热平衡电池包，其特征在于，所述的电池包(300)包括电池模块(200)、前端板(302)、后端板(303)、底板(304)、液冷板(305)和上盖(310)；所述的前端板(302)放置在电池模块(200)前端；所述的后端板(303)放置在电池模块(200)后端；所述的底板(304)位于电池模块(200)底端；所述的液冷板(305)内部设置流道，用于冷却液流通；所述的液冷板(305)为两个，分别置于电池模块(200)两侧，用于通过液冷板(305)中的冷却液带走电池模块(200)的热量；所述的液冷板(305)与电池模块(200)之间设置导热垫(306)；所述的液冷板(305)外侧设置隔热贴(307)，用于隔绝热量；所述的电池模块(200)通过铜排(301)连接正负极输出端；所述的铜排(301)安装在前端板(302)上；所述的前端板(302)、后端板(303)、底板(304)、液冷板(305)和上盖(310)通过紧固件(311)固定为一个包裹住电池模块(200)的长方体形的框架结构。
  2. 根据权利要求1所述的一种热平衡电池包，其特征在于，所述的电池模块(200)包括多个电芯(101)、导热胶(102)和相变均温板(103)；所述的相变均温板(103)与电芯(101)侧面连接，用于将电芯(101)各向温差进行均温；所述的导热胶(102)位于电芯(101)和相变均温板(103)之间，用于将电芯(101)侧面热量传导至相变均温板(103)；多个所述的电芯(101)通过串联连接。
  3. 根据权利要求2所述的一种热平衡电池包，其特征在于，所述的电池模块(200)顶部设置有采集线路模块(201)，用于采集电芯(101)的电压和温度；所述的采集线路模块(201)包括电芯电压采集端子、电芯温度采集端子和过流铝排；所述的电芯电压采集端子和电芯温度采集端子焊接在过流铝排上；所述的过流铝排与电芯(101)的极柱焊接形成导电回路。
  4. 根据权利要求2所述的一种热平衡电池包，其特征在于，所述的电池模块(200)两端设置弹性元件(202)，用于吸收电芯(101)厚度公差。
  5. 根据权利要求3所述的一种热平衡电池包，其特征在于，所述的前端板(302)上设置有端子座(321)和电池管理模块(308)；所述的电池管理模块(308)通过线速(309)与采集线路模块(201)连接，用于检测电芯(101)的电压和温度状况。
  6. 根据权利要求2所述的一种热平衡电池包，其特征在于，所述的导热胶(102)为导热系数0.5-3W/mK的导热胶；所述的相变均温板(103)内部具备微通道，并灌注相变工质。
  7. 根据权利要求1所述的一种热平衡电池包，其特征在于，所述的前端板(302)和后端板(303)的后部均开有凹槽，用于组装成储能系统时进行限位固定；所述的底板(304)底部设置加强横梁，用于支撑电池模组(200)的重量。
  8. 一种采用如权利要求7所述的热平衡电池包的电池包储能系统，其特征在于，所述的储能系统包括边框(400)、支撑架(401)、竖梁(402)和多个限位支架(403)；所述的支撑架(401)为两个，分别固定在边框(400)两侧，用于与电池包(300)的底板(304)接触，支撑电池包(300)重量；所述的竖梁(402)固定在边框(400)后侧，用于与后端板(303)的凹槽配合，对电池包(300)进行左右限位；多个所述的限位支架(403)固定在竖梁(402)上，用于对电池包(300)进行竖直方向限位；所述的前端板(302)通过凹槽和两侧的支撑架(401)连接。
  9. 根据权利要求8所述的储能系统，其特征在于，多个所述的限位支架(403)通过焊接均匀固定在竖梁(402)上。
  10. 根据权利要求8所述的储能系统，其特征在于，所述的储能系统包括多个电池包(300)；多个所述的电池包(300)之间通过串联铜排进行电连接。
PCT/CN2023/135417 2022-12-29 2023-11-30 一种热平衡电池包和电池包储能系统 Ceased WO2024139987A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP23909917.9A EP4618246A4 (en) 2022-12-29 2023-11-30 THERMALLY BALANCED BATTERY BLOCK AND BATTERY BLOCK ENERGY STORAGE SYSTEM
AU2023416987A AU2023416987A1 (en) 2022-12-29 2023-11-30 Thermally balanced battery pack and battery pack energy storage system
US19/183,087 US20250246709A1 (en) 2022-12-29 2025-04-18 Thermally balanced battery pack and battery pack energy storage system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211718269.4A CN116231169A (zh) 2022-12-29 2022-12-29 一种热平衡电池包和电池包储能系统
CN202211718269.4 2022-12-29

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US19/183,087 Continuation US20250246709A1 (en) 2022-12-29 2025-04-18 Thermally balanced battery pack and battery pack energy storage system

Publications (1)

Publication Number Publication Date
WO2024139987A1 true WO2024139987A1 (zh) 2024-07-04

Family

ID=86575995

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/135417 Ceased WO2024139987A1 (zh) 2022-12-29 2023-11-30 一种热平衡电池包和电池包储能系统

Country Status (5)

Country Link
US (1) US20250246709A1 (zh)
EP (1) EP4618246A4 (zh)
CN (1) CN116231169A (zh)
AU (1) AU2023416987A1 (zh)
WO (1) WO2024139987A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119381638A (zh) * 2024-12-27 2025-01-28 江苏天合储能有限公司 储能电池模组及其冷却方法、储能系统和可读存储介质
CN119481435A (zh) * 2024-11-19 2025-02-18 华翔翔能科技股份有限公司 一种可快速装卸的分布式液冷储能柜

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116231169A (zh) * 2022-12-29 2023-06-06 远景能源有限公司 一种热平衡电池包和电池包储能系统
CN117832686B (zh) * 2024-02-02 2024-10-01 深圳永泰数能科技有限公司 基于液冷与相变材料复合散热的新型储能系统及控制方法
CN118693421A (zh) * 2024-06-28 2024-09-24 华为数字能源技术有限公司 一种电池包及储能系统
CN222995501U (zh) * 2024-07-22 2025-06-17 比亚迪股份有限公司 电池包和具有其的用电设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111641005A (zh) * 2020-07-21 2020-09-08 苏州臻迪智能科技有限公司 一种电池包模组
CN113140825A (zh) * 2021-04-06 2021-07-20 力神动力电池系统有限公司 一种具有良好均温性能的电池系统
CN215266506U (zh) * 2021-06-28 2021-12-21 浙江新吉奥汽车有限公司 一种储能电池箱
CN216250990U (zh) * 2021-08-10 2022-04-08 万向一二三股份公司 一种带液冷系统软包电池大模组结构
CN114552065A (zh) * 2022-02-28 2022-05-27 西安热工研究院有限公司 一种液冷储能锂离子电池模组
CN115189064A (zh) * 2022-07-12 2022-10-14 重庆三峡时代能源科技有限公司 一种储能电池模组、电池包和储能系统
CN115954576A (zh) * 2022-12-29 2023-04-11 远景能源有限公司 一种液冷储能电池包
CN116231169A (zh) * 2022-12-29 2023-06-06 远景能源有限公司 一种热平衡电池包和电池包储能系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109449528B (zh) * 2018-09-27 2021-08-03 江苏大学 一种相变储能液冷板、电池包主动热管理系统及控制方法
EP4050705B1 (en) * 2020-12-11 2024-04-10 Contemporary Amperex Technology Co., Limited Battery, power utilization apparatus, and battery manufacturing method
CN213816253U (zh) * 2020-12-14 2021-07-27 湖北亿纬动力有限公司 一种电池模组及车辆
CN217239616U (zh) * 2021-04-12 2022-08-19 张靖 一种动力电池包集成复合液冷板式外箱体结构
CN113363645B (zh) * 2021-05-18 2023-01-17 中国第一汽车股份有限公司 一种延缓热扩散的快换式动力电池总成及电动车辆
CN216958344U (zh) * 2022-02-23 2022-07-12 湖南行必达网联科技有限公司 一种商用车底盘电池包结构及车辆
CN217934071U (zh) * 2022-07-26 2022-11-29 力神（青岛）新能源有限公司 一种新型储能电池包标准模块
CN219959160U (zh) * 2022-12-29 2023-11-03 远景能源有限公司 一种热平衡电池包和电池包储能系统

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111641005A (zh) * 2020-07-21 2020-09-08 苏州臻迪智能科技有限公司 一种电池包模组
CN113140825A (zh) * 2021-04-06 2021-07-20 力神动力电池系统有限公司 一种具有良好均温性能的电池系统
CN215266506U (zh) * 2021-06-28 2021-12-21 浙江新吉奥汽车有限公司 一种储能电池箱
CN216250990U (zh) * 2021-08-10 2022-04-08 万向一二三股份公司 一种带液冷系统软包电池大模组结构
CN114552065A (zh) * 2022-02-28 2022-05-27 西安热工研究院有限公司 一种液冷储能锂离子电池模组
CN115189064A (zh) * 2022-07-12 2022-10-14 重庆三峡时代能源科技有限公司 一种储能电池模组、电池包和储能系统
CN115954576A (zh) * 2022-12-29 2023-04-11 远景能源有限公司 一种液冷储能电池包
CN116231169A (zh) * 2022-12-29 2023-06-06 远景能源有限公司 一种热平衡电池包和电池包储能系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4618246A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119481435A (zh) * 2024-11-19 2025-02-18 华翔翔能科技股份有限公司 一种可快速装卸的分布式液冷储能柜
CN119381638A (zh) * 2024-12-27 2025-01-28 江苏天合储能有限公司 储能电池模组及其冷却方法、储能系统和可读存储介质

Also Published As

Publication number Publication date
EP4618246A4 (en) 2026-03-18
US20250246709A1 (en) 2025-07-31
CN116231169A (zh) 2023-06-06
AU2023416987A1 (en) 2025-07-03
EP4618246A1 (en) 2025-09-17

Similar Documents

Publication Publication Date Title
WO2024139987A1 (zh) 一种热平衡电池包和电池包储能系统
CN215644661U (zh) 电池模组和电池包
CN109904378B (zh) 锂电池储能模块及锂电池储能模组
CN106207308B (zh) 一种电动汽车动力电池水冷系统及采用其的电动汽车
CN206441818U (zh) 一种可用于风冷和液冷散热的锂离子动力电池模块
CN115954576A (zh) 一种液冷储能电池包
CN219959160U (zh) 一种热平衡电池包和电池包储能系统
CN213459874U (zh) 一种新能源汽车动力电池散热结构
CN106159378B (zh) 带有冷却装置的电池模块
CN219658894U (zh) 一种箱体及使用该箱体的电池包
CN218123562U (zh) 一种电池热管理系统
CN106098993A (zh) 一种电池箱
CN218333984U (zh) 一种适用于躺式电芯的冷却结构及其电池包
CN206432354U (zh) 一种电动汽车动力电池水冷系统及采用其的电动汽车
CN105845967A (zh) 一种散热型锂离子电池模块
CN212323079U (zh) 一种新能源电池组加热型连接板
CN210866275U (zh) 一种快速加热电池模组
CN221861753U (zh) 一种矿井应急电源系统及其电池簇
CN115472956A (zh) 一种适用于躺式电芯的冷却结构及其电池包
CN115810851A (zh) 电池模组、电池包及电动汽车
CN206516677U (zh) 一种车用锂离子电池组及车用锂离子电池模块
CN207834366U (zh) 基于蜂窝状结构化的方形电池包
CN111540854A (zh) 一种高能量密度电池系统及车辆
CN218414778U (zh) 电池模组和储能装置
CN220796954U (zh) 一种带有导热板的电池包及储能集装箱

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23909917

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202517046590

Country of ref document: IN

WWP Wipo information: published in national office

Ref document number: 202517046590

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 2023909917

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: AU2023416987

Country of ref document: AU

ENP Entry into the national phase

Ref document number: 2023909917

Country of ref document: EP

Effective date: 20250612

ENP Entry into the national phase

Ref document number: 2023416987

Country of ref document: AU

Date of ref document: 20231130

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWP Wipo information: published in national office

Ref document number: 2023909917

Country of ref document: EP