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Anode‐Free Rechargeable Lithium Metal Batteries
Author(s) -
Qian Jiangfeng,
Adams Brian D.,
Zheng Jianming,
Xu Wu,
Henderson Wesley A.,
Wang Jun,
Bowden Mark E.,
Xu Suochang,
Hu Jianzhi,
Zhang JiGuang
Publication year - 2016
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201602353
Subject(s) - anode , faraday efficiency , materials science , electrolyte , lithium (medication) , battery (electricity) , energy storage , lithium metal , metal , electrochemistry , chemical engineering , electrode , metallurgy , chemistry , power (physics) , medicine , engineering , endocrinology , physics , quantum mechanics
Anode‐free rechargeable lithium (Li) batteries (AFLBs) are phenomenal energy storage systems due to their significantly increased energy density and reduced cost relative to Li‐ion batteries, as well as ease of assembly because of the absence of an active (reactive) anode material. However, significant challenges, including Li dendrite growth and low cycling Coulombic efficiency (CE), have prevented their practical implementation. Here, an anode‐free rechargeable lithium battery based on a Cu||LiFePO 4 cell structure with an extremely high CE (>99.8%) is reported for the first time. This results from the utilization of both an exceptionally stable electrolyte and optimized charge/discharge protocols, which minimize the corrosion of the in situly formed Li metal anode.