正在崛起的新能源技术为化学电源的发展提供了巨大机遇,同时也提出了巨大的技术挑战:即在现有基础上大幅度提升能量和功率密度,以满足各个层次高效储电的要求.利用多电子反应电池体系是成倍提高化学电源能量密度的有效途径.本文以作者所在课题组的研究工作为主,简要介绍了几类典型的多电子电极反应,包括金属硼化物多电子氧化反应、合金储锂反应、高价金属化合物结构转化反应等,以及这些反应体系用于构建高能量密度电池的关键问题,并试图分析解决这些问题的可能技术途径.

Various new energy technologies being developed require electrochemical energy batteries to have a real breakthrough in energy density and rate capability,which imposes a great challenge for electrochemists and materials chemists. Multi-electron redox reactions seem to open a promising avenue to create new batteries with dramatically enhanced energy densities. This paper describes simply our research works on the multi-electron redox systems,including metal boride anode,lithium alloying compounds and electrochemical conversion materials, and also discusses the problems hindering these systems for battery applications.