Proposal Papers for Policy Making and Governmental Action toward Low Carbon Society

LCS-FY2017-PP-04

Sulfur/Carbon Composite Electrodes for Lithium-Sulfur Batteries

Summary

 Application of the conventional lithium ion battery (LIB) for energy storage has been limited by its low specific energy density due to the low cathode capacity.

 As a promising cathode for achieving next-generation batteries with high energy density, sulfur is known to have a theoretical specific capacity as high as 1,672 mAh/g, as much as six times that of electrodes currently in use. However, there still remain many problems to be solved such as the low electrical conductivity, dissolution of the reaction intermediates and the large volume change in charge/discharge. In this proposal, sulfur/carbon composite electrodes developed for lithium-sulfur batteries were reviewed to reveal a direction for electrode material development.

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