Study on carbon matrix composite bipolar plates with balance of conductivity and flexural strength  

作　　者：Junsheng Zheng Yuhang Peng Runlin Fan Jing Chen Zize Zhan Dongmei Yao Pingwen Ming 

机构地区：[1]New Energy Automotive Engineering Center,Tongji University,Shanghai 200029,China [2]School of Automotive Studies,Tongji University,Shanghai 200092,China

出　　处：《Chinese Chemical Letters》2023年第5期626-630,共5页中国化学快报（英文版）

基　　金：the financial supports from the National Key R&D Program of China(Nos.2020YFB1505904 and 2018YFB1502502-04)。

摘　　要：In order to balance the conductivity and flexural strength of graphite composite bipolar plates,the influence of conductive filler on the properties of graphite composite bipolar plate was comprehensively studied by using phenolic resin as binder,natural flake graphite as conductive substrate and functional carbon materials with different structures as auxiliary filler.The results show that the particle size of conductive substrate has an important influence on the conductivity enhancement of auxiliary filler.The influence of conductive particle size on auxiliary filler electrical conductivity improvement was first investigated in this research.The effects of various auxiliary filler concentrations on improving electrical conductivity and flexural strength were then examined.This research has substantial implications for the balance of electrical conductivity and flexural strength of graphite composite bipolar plates.

关 键 词：Composite bipolar plates Graphite particle size Auxiliary fillers Electrical conductivity Flexural strength 

分 类 号：TB332[一般工业技术—材料科学与工程]