Novel Corrosion-Resistant Nonmetallic Current Collectors for Aqueous Batteries

Current collectors (CCs) that hold the anode and cathode active material layers and collect the current flowing in the active material layers play an important role in maintaining the performance of the anodes and cathodes. In safe and inexpensive aqueous batteries, corrosion of CCs is unavoidable, so nonmetallic CCs have recently been investigated. This chapter introduces the results of recent studies on noncorrosive carbon-based CCs as nonmetallic CCs. Carbon coatings on metal-based CCs, carbon-based CCs, CC films made by combining active materials and carbon-based materials, etc., will be introduced. The results of the examination of carbon-based CCs in various aqueous secondary batteries that have been recently developed will be described.