In the 1960s nickel–zinc batteries were investigated as an alternative to silver–zinc batteries for military applications, and in the 1970s were again of interest for electric vehicles.
1960年代、ニッケル・亜鉛電池は軍事用途向けの銀・亜鉛電池の代用品として研究され、1970年代には再び電気自動車の関心が集まった。