Unlock instant, AI-driven research and patent intelligence for your innovation.

Battery module

A battery module and battery technology, applied in secondary batteries, battery pack components, circuits, etc., can solve the problems of difficulty in cooling multiple batteries and low battery cooling efficiency, and achieve the effect of avoiding large-scale

Pending Publication Date: 2021-03-16
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the further downstream the refrigerant flow is, the lower the cooling efficiency of the battery is, and it is difficult to cool a plurality of batteries uniformly.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Battery module
  • Battery module
  • Battery module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0030] figure 1 It is a perspective view of the battery module of Embodiment 1. figure 2 is a stereogram of the aggregate. image 3 It is a perspective view of a battery. In addition, in figure 1 , only a part of the cooling member is shown in the figure. In addition, in figure 2 In , the illustration of the cover member is omitted. The battery module 1 includes an assembly 2 and a cooling member 4 .

[0031] The assembly 2 has a structure in which a plurality of batteries 6 are assembled. The assembly 2 of the present embodiment is a battery pack in which a plurality of flat batteries 6 are stacked. The assembly 2 has a plurality of batteries 6 , a plurality of separators 8 , a pair of end plates 10 , and a pair of constraining members 12 . In addition, in figure 1 Only one battery pack is shown in the figure, and the assembly 2 of this embodiment includes a plurality of battery packs 3 (refer to Figure 6 ).

[0032] Each battery 6 is, for example, a rechargeabl...

Embodiment approach 2

[0075] Figure 7 It is a perspective view of the battery module of Embodiment 2. Figure 8 is a stereogram of the aggregate. Figure 9 It is a perspective view of a battery. In addition, in Figure 7 , only a part of the cooling member is shown. In addition, in Figure 8 In , the illustration of the cover member is omitted. The battery module 1 includes an assembly 2 and a cooling member 4 .

[0076] The assembly 2 has a structure in which a plurality of batteries 6 are assembled. The assembly 2 of the present embodiment is a battery pack in which a plurality of flat batteries 6 are stacked. The assembly 2 has a plurality of batteries 6 , a plurality of separators 8 , a pair of end plates 10 , and a pair of constraining members 12 .

[0077] Each battery 6 is, for example, a rechargeable secondary battery such as a lithium ion battery, a nickel-hydrogen battery, or a nickel-cadmium battery. The battery 6 is a so-called rectangular battery and has a flat rectangular pa...

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

No PUM Login to View More

Abstract

This battery module is provided with: an assembly of a plurality of batteries; and a cooling member 4 which is arranged in such a manner that heat is exchangeable between itself and the assembly. Thecooling member 4 is provided with a mixing part in which a coolant flows, while being mixed.

Description

technical field [0001] The present disclosure relates to battery modules. Background technique [0002] For example, a battery module having a battery assembly in which a plurality of batteries are connected in series is known as a power supply for a vehicle that requires a high output voltage. Regarding such a battery module, Patent Document 1 discloses a battery module including a cooling plate having a refrigerant flow path, and a plurality of batteries thermally conductively bonded to the surface of the cooling plate. [0003] In order to suppress the unevenness of the charge and discharge amounts of the individual batteries and maintain the performance of the battery module, it is desirable to uniformly cool the individual batteries of the battery assembly. On the other hand, there are cases where a temperature boundary layer develops along the flow of refrigerant in the cooling plate. The temperature boundary layer is the resistance factor for heat exchange. Thus, t...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/617H01M10/613H01M10/625H01M10/647H01M10/6556H01M10/6568
CPCH01M10/617H01M10/625H01M10/647H01M10/613H01M10/6568H01M10/6556Y02E60/10Y02P70/50H01M10/6554H01M50/209H01M50/262H01M50/249H01M10/6552H01M10/0481
Inventor 荻野洋岳后藤俊哉
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD