Design and electrochemical investigation of a novel graphene oxide-silver joint conductive agent on LiFePO4 cathodes in rechargeable lithium-ion batteries

作者：Ilango P Robert; Gnanamuthu R; Jo Yong Nam; Lee Chang Woo^*

来源：Journal of Industrial and Engineering Chemistry, 2016, 36: 121-124.

DOI：10.1016/j.jiec.2016.01.037

• Lithium-ion battery
• Surface
• Conductive agent
• Energy storage and conversion

We designed a novel graphene oxide-silver (GO-Ag) joint conductive agent to improve the low electronic conductivity of LiFePO4 (LFP) and attempted to replace the commercial carbon black. The phase evaluations of fabricated cathodes have been characterized using X-ray diffraction and it shows no additional peaks from GO-Ag. The morphological and elemental analysis depicts that the joint GO-Ag enwraps the LFP with uniform distribution of elements. The electrochemical profiles corroborate the stable cycleability and better capability. The optimized electrode gives the better initial charge discharge capacity of similar to 155 mAhig and similar to 150 mAh/g at a 0.5C rate, respectively.

• 出版日期2016-4-25