WO2020168591A1 - Lithium ion power battery system providing ultra-wide temperature range and high safety - Google Patents

Lithium ion power battery system providing ultra-wide temperature range and high safety Download PDF

Info

Publication number
WO2020168591A1
WO2020168591A1 PCT/CN2019/076878 CN2019076878W WO2020168591A1 WO 2020168591 A1 WO2020168591 A1 WO 2020168591A1 CN 2019076878 W CN2019076878 W CN 2019076878W WO 2020168591 A1 WO2020168591 A1 WO 2020168591A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
temperature range
wide temperature
liquid cooling
ion power
Prior art date
Application number
PCT/CN2019/076878
Other languages
French (fr)
Chinese (zh)
Inventor
郭军平
史新明
于维
卞俊
刘通
靳一玲
Original Assignee
江苏金阳光新能源科技有限公司
兰州理工大学
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 江苏金阳光新能源科技有限公司, 兰州理工大学 filed Critical 江苏金阳光新能源科技有限公司
Publication of WO2020168591A1 publication Critical patent/WO2020168591A1/en

Links

Images

Classifications

    • 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
    • H01M10/62—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
    • H01M10/643—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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a battery system, in particular to an ultra-wide temperature range and high safety lithium ion power battery system.
  • the performance and life of the power battery system is greatly affected by the ambient temperature.
  • the performance of the battery is also greatly reduced.
  • the irreversible side reactions inside the battery increase greatly
  • the rapid decay of the battery capacity causes the battery pack to lose its working ability quickly, and it may even cause the battery to catch fire and explode because the internal heat of the battery cannot be dissipated.
  • an integrated lithium-ion power battery system includes a modular battery module composed of multiple battery module units, a module management system, a module fixing block and a module
  • the outer bracket, the module fixing block includes a front fixing block, a right fixing block, a left fixing block and a rear fixing block.
  • the four modules of the front fixing block, the right fixing block, the left fixing block and the rear fixing block are respectively connected with the modular
  • the front, right, left, and rear surfaces of the battery module are snapped and fixed; the module outer bracket is hooped on the outer surface of the combination of the modular battery module and the module fixing block.
  • This battery module uses soft-packed lithium The battery way allows the lithium battery to dissipate heat, its heat dissipation efficiency is low, and there is a long heat dissipation cycle. In addition, when the battery module dissipates heat, simply relying on the heat dissipation efficiency of the battery itself will greatly affect the heat dissipation of the entire power battery system At the same time, the power battery system as a whole cannot meet the needs of ultra-wide temperature range.
  • the present invention provides an ultra-wide temperature range using grid liquid cooling plate technology.
  • the safety lithium-ion power battery system will realize the heat dissipation of the battery module through the grid liquid cooling plate, and complete the whole so that the lithium-ion power battery system is suitable for an ultra-wide temperature range.
  • an ultra-wide temperature range and high safety lithium ion power battery system including a battery box upper cover, an upper grid liquid cooling plate, a lower grid liquid cooling plate, and a battery box
  • a battery box upper cover is arranged on the top of the battery box body, at least one set of battery modules is arranged in the battery box body, a module bracket is used beside the battery modules, and a single battery cell is arranged in the battery module.
  • An upper grid liquid cooling plate is arranged between the module and the upper cover of the battery box, an upper thermal silica gel pad is arranged on the lower side of the upper grid liquid cooling plate, and a lower thermal silica gel pad is arranged on the lower side of the battery module.
  • the lower layer of the thermal silica gel pad is provided with a lower grid liquid cooling plate, a liquid outlet and a liquid inlet are provided on the battery box, and a battery management system is installed inside the battery box.
  • an aluminum plate is provided on the lower side of the single cell, a busbar welding port is provided on the single cell, and a positive electrode is provided on the side of the busbar welding port.
  • the bus bar, the welding port of the bus bar is arranged facing the module bracket.
  • the aluminum plate is an aluminum serpentine plate, and the aluminum serpentine plate is distributed on the module bracket close to the welding port of the busbar.
  • the aluminum serpentine plate is provided with through holes, and the outer surface of the aluminum serpentine plate is covered with a thermally conductive film.
  • the thermally conductive film adopts any one of thermally conductive graphite film, thermally conductive silicone sheet, thermally conductive silicon film, high thermally conductive polyimide film, and graphene thermally conductive film .
  • the serpentine arc on the aluminum serpentine plate fits the outer diameter of the single cell.
  • the upper grid liquid cooling plate and the lower grid liquid cooling plate adopt hollow aluminum plates, and the upper grid liquid cooling plate and the lower grid liquid cooling plate
  • the inside of the board is a serpentine return pipe.
  • the positive bus bar is an L-shaped plane.
  • the lithium-ion power battery system of the present invention adopts the upper grid liquid cooling plate and the lower grid liquid cooling plate to effectively dissipate the heat of the battery modules in the lithium ion battery system, and effectively Eliminates the defect that the lithium-ion power battery system in the prior art dissipates heat through the soft-packed lithium battery itself, and adds the upper grid liquid cooling plate and the lower grid liquid cooling plate to the lithium ion battery system, which can quickly replace the battery module Heat is taken out, especially suitable for working environments in different temperature ranges, so that the lithium-ion power battery system is suitable for ultra-wide temperature ranges.
  • Figure 1 is a schematic diagram of the structure of the present invention.
  • Figure 2 is a schematic diagram of a battery module.
  • Figure 3 is a schematic diagram of the grid liquid cooling plate.
  • 1 is the upper cover of the battery box
  • 2 is the upper grid liquid cooling plate
  • 3 is the lower grid liquid cooling plate
  • 4 is the battery box
  • 5 is the battery module
  • 6 is the module bracket
  • 7 is the upper heat conduction Silicone pad
  • 8 is the lower thermal conductive silicone pad
  • 9 is the liquid outlet
  • 10 is the liquid inlet
  • 11 is the battery management system
  • 12 is the single cell
  • 13 is the aluminum plate
  • 14 is the welding port of the busbar
  • 15 is Positive busbar.
  • an ultra-wide temperature range and high safety lithium-ion power battery system of the present invention includes a battery box upper cover 1, an upper grid liquid cooling plate 2, a lower grid liquid cooling plate 3, and a battery box body 4.
  • a battery box upper cover 1 is provided on the top of the battery box 4, at least one set of battery modules 5 is provided in the battery box 4, and a module bracket 6 is used next to the battery module 5, which is provided with a single battery
  • the core 12 is provided with an upper grid liquid cooling plate 2 between the battery module 5 and the upper cover 1 of the battery box, and an upper thermal silica gel pad 7 is provided on the lower side of the upper grid liquid cooling plate 2, and the battery mold
  • the lower side of the group 5 is provided with a lower thermally conductive silicone pad 8, and the lower side of the lower thermally conductive silicone pad 8 is provided with a lower grid liquid cooling plate 3, and the battery box 4 is provided with a liquid outlet 9 and a liquid inlet 10 ,
  • a battery management system 11 is installed inside the battery box 4.
  • An aluminum plate 13 is provided on the lower side of the single cell 12, a busbar welding port 14 is provided on the single cell 12, and a positive busbar 15 is provided on one side of the busbar welding port 14.
  • the busbar The welding port 14 is arranged facing the module bracket 6, but the independent operation of the single cell 12 is realized, and the module bracket 6 is fixed to the bus tray interface 14.
  • the aluminum plate 13 is an aluminum serpentine plate, and the aluminum serpentine plate is distributed on the module bracket 6 close to the bus bar welding port 14, and passes through the aluminum serpentine plate.
  • the board and the single cell 12 are attached to each other, and the aluminum serpentine plate supports the single cell 12 to make the connection of the single cell 12 more stable.
  • the aluminum serpentine plate is provided with through holes, and the outer surface of the aluminum serpentine plate is covered with a thermally conductive film.
  • the thermally conductive film makes the battery modules in the power battery system suitable for use in different temperature ranges. need.
  • the thermally conductive film uses any one of thermally conductive graphite film, thermally conductive silicone film, thermally conductive silicon film, high thermally conductive polyimide film, and graphene thermally conductive film, so that the efficiency of the thermally Improve the heat dissipation efficiency of the lithium-ion power battery system as a whole.
  • the serpentine arc on the aluminum serpentine plate is used to fit the outer diameter of the single cell 12, and the upper layer
  • the grid liquid cooling plate 2 and the lower grid liquid cooling plate 3 adopt hollow aluminum plates, which meet the heat dissipation needs of the use environment and optimize the heat dissipation effect of the power battery system.
  • the upper grille liquid cooling plate 2 and the lower grille liquid cooling plate 3 have a serpentine return pipe 16 inside, and a serpentine return pipe 16 is used to cool the upper grille liquid cooling plate and the lower grille liquid cooling plate.
  • the heat dissipation effect of the board is optimized, which can make the power battery system suitable for the temperature range of -55°C-50°C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

A lithium ion power battery system providing an ultra-wide temperature range and high safety. The system comprises a battery box upper cover, an upper grid coldplate, a lower grid coldplate, and a battery box. The battery box upper cover is disposed at a top portion of the battery box. At least one battery module is disposed in the battery box, wherein a module support frame is disposed beside the battery module, and a single battery cell is disposed inside the battery module. The upper grid coldplate is disposed between the battery module and the battery box upper cover. The upper grid coldplate and the lower grid coldplate are employed to effectively dissipate heat from the battery module of the lithium-ion battery system, thereby effectively remedying the defect in the prior art in which a lithium-ion power battery system can only rely on the soft-pack lithium battery itself to dissipate heat.

Description

一种超宽温域高安全性锂离子动力电池系统An ultra-wide temperature range high safety lithium ion power battery system 技术领域Technical field
本发明涉及一种电池系统，尤其是一种超宽温域高安全性锂离子动力电池系统。The invention relates to a battery system, in particular to an ultra-wide temperature range and high safety lithium ion power battery system.
背景技术Background technique
随着时代的进步，汽车数量剧增，在推动了人类社会经济和现代文明的高速发展的同时，也带来了严峻的能源和环境问题，节能和环保成为汽车技术发展的主题之一，随着对低碳生活的追求，新能源汽车也逐渐走入到人们的日常生活中。With the progress of the times, the number of automobiles has increased dramatically. While promoting the rapid development of human society, economy and modern civilization, it has also brought about severe energy and environmental problems. Energy conservation and environmental protection have become one of the themes of the development of automobile technology. With the pursuit of a low-carbon life, new energy vehicles have gradually entered people's daily lives.
作为新能源汽车的“心脏”，动力电池系统的工作性能和寿命受环境温度影响很大，在低温情况下进行充电时，由于锂离子难以嵌入到负极石墨层中，造成电池内部极化增大，电池无法充电；或锂离子沉积在负极表面形成锂枝晶，造成安全隐患，在低温放电时，电池的性能也大幅衰减，在高温情况下，则由于电池内部不可逆副反应的大量增加，导致电池容量的快速衰减使得电池组迅速失去工作能力，甚至可能由于电池内部热量无法散去，进一步的导致电池的起火爆炸。As the "heart" of new energy vehicles, the performance and life of the power battery system is greatly affected by the ambient temperature. When charging at low temperatures, it is difficult for lithium ions to be embedded in the negative graphite layer, resulting in increased internal polarization of the battery , The battery cannot be charged; or lithium ions are deposited on the surface of the negative electrode to form lithium dendrites, causing safety hazards. When discharging at low temperatures, the performance of the battery is also greatly reduced. At high temperatures, the irreversible side reactions inside the battery increase greatly The rapid decay of the battery capacity causes the battery pack to lose its working ability quickly, and it may even cause the battery to catch fire and explode because the internal heat of the battery cannot be dissipated.
现有技术中，例如专利号CN201721635883.9，一种集成化锂离子动力电池系统，包括由多个电池模组单元组成的模块化电池模组、模组管理系统、模组固定块和模组外支架，所述模组固定块包括前固定块、右固定块、左固定块和后固定块，所述前固定块、右固定块、左固定块和后固定块四个模块分别与模块化电池模组的前、右、左和后端面扣合固定；所述模组外支架抱箍在模块化电池模组和模组固定块的组合物外表面，此种电池模组采用软包锂电池的方式让锂电池的散热，其散热效率较低，存在散热周期长，另外，电池模组散热的时候，只是简单的依靠电池本身的散热效率，将会大大的影响整个动力电池系统的散热效果，同时导致动力电池系统整体上不能适应超宽温域的使用需要。In the prior art, for example, the patent number CN201721635883.9, an integrated lithium-ion power battery system, includes a modular battery module composed of multiple battery module units, a module management system, a module fixing block and a module The outer bracket, the module fixing block includes a front fixing block, a right fixing block, a left fixing block and a rear fixing block. The four modules of the front fixing block, the right fixing block, the left fixing block and the rear fixing block are respectively connected with the modular The front, right, left, and rear surfaces of the battery module are snapped and fixed; the module outer bracket is hooped on the outer surface of the combination of the modular battery module and the module fixing block. This battery module uses soft-packed lithium The battery way allows the lithium battery to dissipate heat, its heat dissipation efficiency is low, and there is a long heat dissipation cycle. In addition, when the battery module dissipates heat, simply relying on the heat dissipation efficiency of the battery itself will greatly affect the heat dissipation of the entire power battery system At the same time, the power battery system as a whole cannot meet the needs of ultra-wide temperature range.
发明内容Summary of the invention
本发明为克服现有技术中锂离子动力电池系统整体上散热效率低，不适应超宽温域的使用等缺陷，本发明提供一种采用格栅液冷板技术的一种超宽温域高安 全性锂离子动力电池系统，将通过格栅液冷板实现对于电池模组的散热，而完成整体让锂离子动力电池系统适合超宽温域。In order to overcome the disadvantages of low heat dissipation efficiency of the lithium ion power battery system as a whole in the prior art and not adapting to the use of an ultra-wide temperature range, the present invention provides an ultra-wide temperature range using grid liquid cooling plate technology. The safety lithium-ion power battery system will realize the heat dissipation of the battery module through the grid liquid cooling plate, and complete the whole so that the lithium-ion power battery system is suitable for an ultra-wide temperature range.
本发明解决其技术问题所采用的技术方案是：一种超宽温域高安全性锂离子动力电池系统，包括电池箱上盖、上层格栅液冷板、下层格栅液冷板、电池箱体，在电池箱体的顶部设置有电池箱上盖，在电池箱体内设置有至少一组电池模组，电池模组旁采用模组支架，其内设置有单体电芯，所述的电池模组和电池箱上盖之间设置有上层格栅液冷板，在上侧格栅液冷板下侧设置有上层导热硅胶垫，在电池模组的下侧设置有下层导热硅胶垫，在下层导热硅胶垫下层设置有下层格栅液冷板，在所述的电池箱体上设置有出液口和进液口，在电池箱体内侧安装有电池管理系统。The technical solution adopted by the present invention to solve its technical problems is: an ultra-wide temperature range and high safety lithium ion power battery system, including a battery box upper cover, an upper grid liquid cooling plate, a lower grid liquid cooling plate, and a battery box A battery box upper cover is arranged on the top of the battery box body, at least one set of battery modules is arranged in the battery box body, a module bracket is used beside the battery modules, and a single battery cell is arranged in the battery module. An upper grid liquid cooling plate is arranged between the module and the upper cover of the battery box, an upper thermal silica gel pad is arranged on the lower side of the upper grid liquid cooling plate, and a lower thermal silica gel pad is arranged on the lower side of the battery module. The lower layer of the thermal silica gel pad is provided with a lower grid liquid cooling plate, a liquid outlet and a liquid inlet are provided on the battery box, and a battery management system is installed inside the battery box.
上述的超宽温域高安全性锂离子动力电池系统，在单体电芯下侧设置有铝质板，在单体电芯上设置有汇流排焊接口，汇流排焊接口一侧设置有正极汇流排，所述的汇流排焊接口面向模组支架设置。In the above-mentioned ultra-wide temperature range and high safety lithium ion power battery system, an aluminum plate is provided on the lower side of the single cell, a busbar welding port is provided on the single cell, and a positive electrode is provided on the side of the busbar welding port. The bus bar, the welding port of the bus bar is arranged facing the module bracket.
上述的超宽温域高安全性锂离子动力电池系统，所述的铝质板为铝质蛇形板，所述的铝质蛇形板分布在模组支架上接近汇流排焊接口的位置。In the above-mentioned ultra-wide temperature range high-safety lithium-ion power battery system, the aluminum plate is an aluminum serpentine plate, and the aluminum serpentine plate is distributed on the module bracket close to the welding port of the busbar.
上述的超宽温域高安全性锂离子动力电池系统，所述的铝质蛇形板上设置有通孔，在铝质蛇形板的外表面覆有导热膜。In the above-mentioned ultra-wide temperature range high-safety lithium-ion power battery system, the aluminum serpentine plate is provided with through holes, and the outer surface of the aluminum serpentine plate is covered with a thermally conductive film.
上述的超宽温域高安全性锂离子动力电池系统，所述的导热膜采用导热石墨膜、导热硅胶片、导热矽胶片、高导热聚酰亚胺膜、石墨烯导热膜中的任一种。In the above-mentioned ultra-wide temperature range and high safety lithium-ion power battery system, the thermally conductive film adopts any one of thermally conductive graphite film, thermally conductive silicone sheet, thermally conductive silicon film, high thermally conductive polyimide film, and graphene thermally conductive film .
上述的超宽温域高安全性锂离子动力电池系统，所述的铝质蛇形板上的蛇形弧度贴合住单体电芯的外径。In the above-mentioned ultra-wide temperature range high-safety lithium-ion power battery system, the serpentine arc on the aluminum serpentine plate fits the outer diameter of the single cell.
上述的超宽温域高安全性锂离子动力电池系统，所述的上层格栅液冷板和下层格栅液冷板采用中空铝质板，该上层格栅液冷板和下层格栅液冷板内部为蛇形回流管。In the above-mentioned ultra-wide temperature range and high safety lithium-ion power battery system, the upper grid liquid cooling plate and the lower grid liquid cooling plate adopt hollow aluminum plates, and the upper grid liquid cooling plate and the lower grid liquid cooling plate The inside of the board is a serpentine return pipe.
上述的超宽温域高安全性锂离子动力电池系统，所述的正极汇流排为L形平面。In the above-mentioned ultra-wide temperature range high safety lithium ion power battery system, the positive bus bar is an L-shaped plane.
本发明的有益效果是：本发明的锂离子动力电池系统采用上层格栅液冷板和下层格栅液冷板，有效的将锂离子电池系统中的电池模组的热量进行散出，有效地消除了现有技术中锂离子动力电池系统通过软包锂电池自身散热的缺陷，将锂离子电池系统中增加上层格栅液冷板和下层格栅液冷板，可快速的将电池模组的热量带出，尤其是能够适合不同温域的工作环境，从而让锂离子动力电池系统适合超宽温域。The beneficial effects of the present invention are: the lithium-ion power battery system of the present invention adopts the upper grid liquid cooling plate and the lower grid liquid cooling plate to effectively dissipate the heat of the battery modules in the lithium ion battery system, and effectively Eliminates the defect that the lithium-ion power battery system in the prior art dissipates heat through the soft-packed lithium battery itself, and adds the upper grid liquid cooling plate and the lower grid liquid cooling plate to the lithium ion battery system, which can quickly replace the battery module Heat is taken out, especially suitable for working environments in different temperature ranges, so that the lithium-ion power battery system is suitable for ultra-wide temperature ranges.
附图说明Description of the drawings
图1为本发明的结构示意图。Figure 1 is a schematic diagram of the structure of the present invention.
图2为电池模组示意图。Figure 2 is a schematic diagram of a battery module.
图3为格栅液冷板示意图。Figure 3 is a schematic diagram of the grid liquid cooling plate.
图中：1为电池箱上盖，2为上层格栅液冷板，3为下层格栅液冷板，4为电池箱体，5为电池模组，6为模组支架，7为上层导热硅胶垫，8为下层导热硅胶垫，9为出液口，10为进液口，11为电池管理系统，12为单体电芯，13为铝质板，14为汇流盘焊接口，15为正极汇流排。In the picture: 1 is the upper cover of the battery box, 2 is the upper grid liquid cooling plate, 3 is the lower grid liquid cooling plate, 4 is the battery box, 5 is the battery module, 6 is the module bracket, 7 is the upper heat conduction Silicone pad, 8 is the lower thermal conductive silicone pad, 9 is the liquid outlet, 10 is the liquid inlet, 11 is the battery management system, 12 is the single cell, 13 is the aluminum plate, 14 is the welding port of the busbar, 15 is Positive busbar.
具体实施方式detailed description
以下结合附图对本发明的内容作进一步说明。The content of the present invention will be further described below in conjunction with the accompanying drawings.
如图1所示，本发明一种超宽温域高安全性锂离子动力电池系统，包括电池箱上盖1、上层格栅液冷板2、下层格栅液冷板3、电池箱体4，在电池箱体4的顶部设置有电池箱上盖1，在电池箱体4内设置有至少一组电池模组5，电池模组5旁采用模组支架6，其内设置有单体电芯12，所述的电池模组5和电池箱上盖1之间设置有上层格栅液冷板2，在上侧格栅液冷板2下侧设置有上层导热硅胶垫7，在电池模组5的下侧设置有下层导热硅胶垫8，下层导热硅胶垫8下侧设置有下层格栅液冷板3，在所述的电池箱体4上设置有出液口9和进液口10，在电池箱体4内侧安装有电池管理系统11。As shown in Figure 1, an ultra-wide temperature range and high safety lithium-ion power battery system of the present invention includes a battery box upper cover 1, an upper grid liquid cooling plate 2, a lower grid liquid cooling plate 3, and a battery box body 4. A battery box upper cover 1 is provided on the top of the battery box 4, at least one set of battery modules 5 is provided in the battery box 4, and a module bracket 6 is used next to the battery module 5, which is provided with a single battery The core 12 is provided with an upper grid liquid cooling plate 2 between the battery module 5 and the upper cover 1 of the battery box, and an upper thermal silica gel pad 7 is provided on the lower side of the upper grid liquid cooling plate 2, and the battery mold The lower side of the group 5 is provided with a lower thermally conductive silicone pad 8, and the lower side of the lower thermally conductive silicone pad 8 is provided with a lower grid liquid cooling plate 3, and the battery box 4 is provided with a liquid outlet 9 and a liquid inlet 10 , A battery management system 11 is installed inside the battery box 4.
其中在单体电芯12下侧设置有铝质板13，在单体电芯12上设置有汇流排焊接口14，汇流排焊接口14一侧设置有正极汇流排15，所述的汇流排焊接口 14面向模组支架6设置，可是现实单体电芯12的独立工作，将模组支架6固定住汇流盘接口14。An aluminum plate 13 is provided on the lower side of the single cell 12, a busbar welding port 14 is provided on the single cell 12, and a positive busbar 15 is provided on one side of the busbar welding port 14. The busbar The welding port 14 is arranged facing the module bracket 6, but the independent operation of the single cell 12 is realized, and the module bracket 6 is fixed to the bus tray interface 14.
如图2所示，其中所述的铝质板13为铝质蛇形板，所述的铝质蛇形板分布在模组支架6上接近汇流排焊接口14的位置，通过铝质蛇形板与单体电芯12相互贴合，铝质蛇形板托住单体电芯12，让单体电芯12的连接更加稳定。As shown in FIG. 2, the aluminum plate 13 is an aluminum serpentine plate, and the aluminum serpentine plate is distributed on the module bracket 6 close to the bus bar welding port 14, and passes through the aluminum serpentine plate. The board and the single cell 12 are attached to each other, and the aluminum serpentine plate supports the single cell 12 to make the connection of the single cell 12 more stable.
其中所述的铝质蛇形板上设置有通孔，在铝质蛇形板的外表面覆有导热膜，依靠导热膜让动力电池系统内的电池模组适合不同温域的使用工况的需要。The aluminum serpentine plate is provided with through holes, and the outer surface of the aluminum serpentine plate is covered with a thermally conductive film. The thermally conductive film makes the battery modules in the power battery system suitable for use in different temperature ranges. need.
其中所述的导热膜采用导热石墨膜、导热硅胶片、导热矽胶片、高导热聚酰亚胺膜、石墨烯导热膜中的任一种，让导热膜的导出热量的效率不断提升，从而可以整体上提升锂离子动力电池系统的散热效率。The thermally conductive film uses any one of thermally conductive graphite film, thermally conductive silicone film, thermally conductive silicon film, high thermally conductive polyimide film, and graphene thermally conductive film, so that the efficiency of the thermally Improve the heat dissipation efficiency of the lithium-ion power battery system as a whole.
在为了增加整个动力电池系统的散热效率，满足不同温域的散热的需要，采用所述的铝质蛇形板上的蛇形弧度贴合住单体电芯12的外径，所述的上层格栅液冷板2和下层格栅液冷板3采用中空铝质板，满足了使用环境的散热需要，动力电池系统散热效果优化。In order to increase the heat dissipation efficiency of the entire power battery system and meet the needs of heat dissipation in different temperature ranges, the serpentine arc on the aluminum serpentine plate is used to fit the outer diameter of the single cell 12, and the upper layer The grid liquid cooling plate 2 and the lower grid liquid cooling plate 3 adopt hollow aluminum plates, which meet the heat dissipation needs of the use environment and optimize the heat dissipation effect of the power battery system.
如图3所示，该上层格栅液冷板2和下层格栅液冷板3内部为蛇形回流管16，采用了蛇形回流管16让上层格栅液冷板和下层格栅液冷板的散热效果优化，可以让动力电池系统适合-55℃-50℃的温域。As shown in Figure 3, the upper grille liquid cooling plate 2 and the lower grille liquid cooling plate 3 have a serpentine return pipe 16 inside, and a serpentine return pipe 16 is used to cool the upper grille liquid cooling plate and the lower grille liquid cooling plate. The heat dissipation effect of the board is optimized, which can make the power battery system suitable for the temperature range of -55℃-50℃.
以上内容是结合具体地实施方式对本发明所述的一种超宽温域高安全性锂离子动力电池系统，所作出的进一步详细说明，并非对本发明的范围进行限定，在不脱离本发明构思的前提下，本领域普通技术人员依据本发明的技术方案作出的各种变形和改进，均应视为本发明的保护范围。The above content is an ultra-wide temperature range and high safety lithium-ion power battery system of the present invention in combination with specific implementations. The further detailed description is not to limit the scope of the present invention, and does not deviate from the concept of the present invention. Under the premise, various modifications and improvements made by those of ordinary skill in the art based on the technical solution of the present invention should be regarded as the protection scope of the present invention.

Claims (8)

  1. 一种超宽温域高安全性锂离子动力电池系统，包括电池箱上盖、上层格栅液冷板、下层格栅液冷板、电池箱体，其特征在于：在电池箱体的顶部设置有电池箱上盖，在电池箱体内设置有至少一组电池模组，电池模组旁采用模组支架，其内设置有单体电芯，所述的电池模组和电池箱上盖之间设置有上层格栅液冷板，在上侧格栅液冷板下侧设置有上层导热硅胶垫，在电池模组的下侧设置有下层导热硅胶垫，在下层导热硅胶垫下侧设置有下层格栅液冷板，所述的电池箱体上设置有出液口和进液口，在电池箱体内侧安装有电池管理系统。An ultra-wide temperature range high-safety lithium-ion power battery system, comprising a battery box upper cover, an upper grid liquid cooling plate, a lower grid liquid cooling plate, and a battery box, characterized in that it is arranged on the top of the battery box There is a battery box upper cover, at least one set of battery modules is arranged in the battery box body, a module bracket is used next to the battery module, and a single battery cell is arranged inside the battery module. An upper grid liquid cooling plate is provided, an upper thermal silica gel pad is provided on the lower side of the upper grid liquid cooling plate, a lower thermal silica gel pad is provided on the lower side of the battery module, and a lower layer is provided on the lower side of the lower thermal silica gel pad The grid liquid cooling plate is provided with a liquid outlet and a liquid inlet on the battery box body, and a battery management system is installed inside the battery box body.
  2. 根据权利要求1所述的超宽温域高安全性锂离子动力电池系统，其特征在于：在单体电芯下侧设置有铝质板，在单体电芯上设置有汇流排焊接口，汇流排焊接口一侧设置有正极汇流排，所述的汇流排焊接口面向模组支架设置。The ultra-wide temperature range and high safety lithium-ion power battery system according to claim 1, wherein an aluminum plate is provided on the lower side of the single cell, and a busbar welding port is provided on the single cell, A positive bus bar is arranged on one side of the welding port of the bus bar, and the welding port of the bus bar is arranged facing the module support.
  3. 根据权利要求2所述的超宽温域高安全性锂离子动力电池系统，其特征在于：所述的铝质板为铝质蛇形板，所述的铝质蛇形板分布在模组支架上接近汇流排焊接口的位置。The ultra-wide temperature range and high safety lithium-ion power battery system according to claim 2, wherein the aluminum plate is an aluminum serpentine plate, and the aluminum serpentine plate is distributed on the module support The upper part is close to the welding port of the busbar.
  4. 根据权利要求3所述的超宽温域高安全性锂离子动力电池系统，其特征在于：所述的铝质蛇形板上设置有通孔，在铝质蛇形板的外表面覆有导热膜。The ultra-wide temperature range and high safety lithium ion power battery system according to claim 3, characterized in that: the aluminum serpentine plate is provided with through holes, and the outer surface of the aluminum serpentine plate is covered with heat conduction membrane.
  5. 根据权利要求4所述的超宽温域高安全性锂离子动力电池系统，其特征在于：所述的导热膜采用导热石墨膜、导热硅胶片、导热矽胶片、高导热聚酰亚胺膜、石墨烯导热膜中的任一种。The ultra-wide temperature range and high safety lithium ion power battery system according to claim 4, characterized in that: the thermal conductive film adopts thermal conductive graphite film, thermal conductive silicone sheet, thermal conductive silicone film, high thermal conductivity polyimide film, Any of graphene thermal conductive films.
  6. 根据权利要求3所述的超宽温域高安全性锂离子动力电池系统，其特征在于：所述的铝质蛇形板上的蛇形弧度贴合住单体电芯的外表面。The ultra-wide temperature range and high safety lithium-ion power battery system according to claim 3, wherein the serpentine arc on the aluminum serpentine plate fits the outer surface of the single cell.
  7. 根据权利要求1所述的超宽温域高安全性锂离子动力电池系统，其特征在于：所述的上层格栅液冷板和下层格栅液冷板采用中空铝质板，该上层格栅液冷板和下层格栅液冷板内部为蛇形回流管。The ultra-wide temperature range and high safety lithium-ion power battery system according to claim 1, wherein the upper grille liquid cooling plate and the lower grille liquid cooling plate are hollow aluminum plates, and the upper grille The inside of the liquid cooling plate and the lower grid liquid cooling plate are serpentine return pipes.
  8. 根据权利要求2所述的超宽温域高安全性锂离子动力电池系统，其特征在于：所述的正极汇流排为L形平面。The ultra-wide temperature range and high safety lithium-ion power battery system according to claim 2, wherein the positive bus bar is an L-shaped plane.
PCT/CN2019/076878 2019-02-21 2019-03-04 Lithium ion power battery system providing ultra-wide temperature range and high safety WO2020168591A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910128130.6A CN111600092A (en) 2019-02-21 2019-02-21 Super wide high security lithium ion power battery system in temperature domain
CN201910128130.6 2019-02-21

Publications (1)

Publication Number Publication Date
WO2020168591A1 true WO2020168591A1 (en) 2020-08-27

Family

ID=72144609

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/076878 WO2020168591A1 (en) 2019-02-21 2019-03-04 Lithium ion power battery system providing ultra-wide temperature range and high safety

Country Status (2)

Country Link
CN (1) CN111600092A (en)
WO (1) WO2020168591A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112768805A (en) * 2021-01-22 2021-05-07 倍登新能源科技（苏州）有限公司 Integrated liquid cooling battery box

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113193258A (en) * 2021-04-16 2021-07-30 湖北亿纬动力有限公司 CTP liquid cooling plate and battery system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2330659A2 (en) * 2009-12-02 2011-06-08 Amphenol-tuchel Electronics GmbH Cooler for a high voltage cell assembly
CN108206256A (en) * 2018-02-07 2018-06-26 华南理工大学 A kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system
CN207967246U (en) * 2018-03-27 2018-10-12 浙江吉利汽车研究院有限公司 Liquid cooling plate component and automotive battery system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016091133A1 (en) * 2014-12-08 2016-06-16 宋正贤 Heat management device of electro-heating component
CN207425985U (en) * 2017-12-01 2018-05-29 郑州比克电池有限公司 A kind of batteries of electric automobile bag liquid ice chest body
CN207651637U (en) * 2018-01-08 2018-07-24 华霆（合肥）动力技术有限公司 Electric commercial vehicle liquid cooling apparatus and liquid cooling system
CN207910029U (en) * 2018-01-16 2018-09-25 宝沃汽车（中国）有限公司 Liquid cooling apparatus, power battery pack and the electric vehicle of battery pack
CN207868345U (en) * 2018-02-28 2018-09-14 重庆大学 A kind of electric automobile power battery cooling system cold plate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2330659A2 (en) * 2009-12-02 2011-06-08 Amphenol-tuchel Electronics GmbH Cooler for a high voltage cell assembly
CN108206256A (en) * 2018-02-07 2018-06-26 华南理工大学 A kind of light-weighted electric vehicle lithium-ion-power cell heat management liquid cooling system
CN207967246U (en) * 2018-03-27 2018-10-12 浙江吉利汽车研究院有限公司 Liquid cooling plate component and automotive battery system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112768805A (en) * 2021-01-22 2021-05-07 倍登新能源科技（苏州）有限公司 Integrated liquid cooling battery box

Also Published As

Publication number Publication date
CN111600092A (en) 2020-08-28

Similar Documents

Publication Publication Date Title
WO2021208969A1 (en) Power battery pack and vehicle
JP6581699B2 (en) Battery module
WO2013003989A1 (en) Temperature control system with thermal tubes for vehicle power battery box
CN210489698U (en) Battery module, battery package and vehicle
WO2020103061A1 (en) Battery, unmanned aerial vehicle having battery, and electronic device
WO2020168591A1 (en) Lithium ion power battery system providing ultra-wide temperature range and high safety
CN109768194A (en) It is a kind of based on phase-change material-fin composite construction lithium ion battery mould group heat management system
CN110556607A (en) battery module and battery pack
WO2024082591A1 (en) Frame heat dissipation structure, and power battery module having same
WO2019113846A1 (en) Power battery system based on gas-liquid two-phase heat dissipation and heat energy recovery
WO2023066259A1 (en) Battery pack and energy storage system
CN109860951A (en) A kind of core strueture of the electric storage device of high efficiency and heat radiation
WO2018133276A1 (en) Electric car
CN211828961U (en) Novel liquid cooling heat dissipation device for power battery
CN210073975U (en) High-efficient radiating laminate polymer battery module
CN111540978A (en) Lithium ion battery photo frame filled with phase change material
Yu et al. Thermal management of a Li-ion battery for electric vehicles using PCM and water-cooling board
CN208723047U (en) The automobile batteries packet of fan and air hose water conservancy diversion is utilized in a kind of confined space
EP4273996A1 (en) Battery cell and battery module comprising same
CN105845967A (en) Radiating type lithium ion battery module
WO2023125085A1 (en) Battery module, battery pack, and energy storage system
CN105207296A (en) Balanced cooling system of lithium battery
CN113067054B (en) Battery based on phase-change material coupling fin and battery thermal management system thereof
CN204928300U (en) Balanced cooling system of lithium cell
CN209401799U (en) A kind of core strueture of the electric storage device of high efficiency and heat radiation

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: 19916206

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19916206

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 19916206

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 30.06.22)

122 Ep: pct application non-entry in european phase

Ref document number: 19916206

Country of ref document: EP

Kind code of ref document: A1