Battery module of power battery pack
A technology for power battery packs and battery modules, applied to battery pack parts, batteries, secondary batteries, etc., can solve problems such as inability to charge, low temperature, poor power battery heat dissipation, etc., to achieve good performance, optimal performance, Improve the effect of not being able to charge and discharge
Active Publication Date: 2016-04-13
兰州广通新能源汽车有限公司 +1
View PDF3 Cites 7 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In view of the above-mentioned current state of the art, the technical problem to be solved by the present invention is to provide a battery module of a power battery pack to solve the problem of poor heat dissipation or low temperature of power batteries used in electric vehicles, electric buses and electric buses. The problem caused by the inability to charge and discharge
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0032] like Figure 1-3 As shown, the power battery pack 20 in one of the embodiments of the present invention includes several battery modules 10, a front panel 21, a back panel 22, a top panel 23, a forced ventilation heat dissipation and battery pack heating device, a total positive metal plate 27 and a total negative electrode The metal plate 28 and several battery modules 10 are stacked together and fixed by three metal straps 30 .
[0033] like Figure 4-9 As shown, the battery module 10 is mainly composed of a casing assembly 11, a soft-pack lithium-ion battery 12 and two heat exchange systems 16, wherein the casing assembly 11 is fastened together by a first casing 111 and a second casing 112, and passed ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A battery module of a power battery pack comprises a shell assembly, a soft package lithium ion battery and a heat exchange system, wherein the shell assembly is provided with a battery accommodating cavity and an air duct unit, the soft package lithium ion battery is arranged in the battery accommodating cavity of the shell assembly, a positive tab and a negative tab of the soft package lithium ion battery are respectively welded with a positive diversion metal strip and a negative diversion metal strip, the positive diversion metal strip and the negative diversion metal strip are exposed out of the shell assembly, the heat exchange system comprises a heat collection plate, a heat pipe and fins, the heat collection plate is arranged in the battery accommodating cavity of the shell assembly and is in tight contact with the surface of the soft package lithium ion battery, the heat pipe is fixed on the heat collection plate and provided with a first segment extending out of the heat collection plate, and the fins are arranged on the first segment and are also arranged in the air duct unit. With the power module of the power battery pack disclosed by the invention, the problems of incapability of charging and discharging caused by poor heat dissipation or excessive low temperature of a power battery used by a current electromobile, an electric coach and an electric bus are solved.
Description
technical field [0001] The invention relates to the technical field of batteries, in particular to a battery module of a power battery pack. Background technique [0002] The battery packs of existing power batteries basically use single cells to be directly connected, or add a protective shell. The heat dissipation rate depends on the heat conduction rate of the battery's protective material. If a pure plastic battery shell is used, it will be difficult for the heat to dissipate from the battery body At the same time, the temperature of the tabs of the battery rises sharply due to the increase of the charge and discharge rate, causing the adhesive plastic between the tabs of the battery and the aluminum-plastic film of the battery to melt, causing the battery to leak, and the risk of battery failure or fire. Using modular batteries with metal casings, the weight of the battery box will be very heavy, which does not have the advantages of practical use, and the metal casing ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M2/26H01M10/613H01M10/615H01M10/625H01M10/635H01M10/6551H01M10/6552H01M10/6554H01M10/6563H01M50/211H01M50/249H01M50/298H01M50/536
CPCH01M2220/20H01M50/20H01M50/531Y02E60/10
Inventor 徐德雷蔡惠群李海军詹世英魏银仓
Owner 兰州广通新能源汽车有限公司