title: Low charge overpotentials in lithium-oxygen batteries based on tetraglyme electrolytes with a limited amount of water.
abstract: High charge overpotentials are a great challenge for the realization of lithium-oxygen batteries. Here, we construct a Li-O2 battery system by introducing a limited amount of water into tetraglyme based electrolytes and electrolytic MnO2 (EMD) and Ru supported on Super P as cathodes for Li-O2 batteries. This results in low charge potentials of around 3.2 V, corresponding to overpotentials of 0.24 V, and outstanding rate capability and cycling performance.
authors.affiliation: Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1, Umezono, Tsukuba 305-8568, Japan. hubfujun@hotmail.com hs.zhou@aist.go.jp.
authors.forename: Shichao
authors.initials: S
authors.lastname: Wu
authors.forename: Jing
authors.initials: J
authors.lastname: Tang
authors.forename: Fujun
authors.initials: F
authors.lastname: Li
authors.forename: Xizheng
authors.initials: X
authors.lastname: Liu
authors.forename: Haoshen
authors.initials: H
authors.lastname: Zhou