Prolonged lifespan of initial-anode-free lithium-metal battery by pre-lithiation in Li-rich Li2Ni0.5Mn1.5O4 spinel cathode
學年 111
學期 1
出版（發表）日期 2023-01-23
作品名稱 Prolonged lifespan of initial-anode-free lithium-metal battery by pre-lithiation in Li-rich Li2Ni0.5Mn1.5O4 spinel cathode
作品名稱（其他語言）
著者 Leiyu Chen; Chao-Lung Chiang; Xiaohong Wu; Yonglin Tang; Guifan Zeng; Shiyuan Zhou; Baodan Zhang; Haitang Zhang; Yawen Yan; Tingting Liu; Hong-Gang Liao; Xiaoxiao Kuai; Yan-Gu Lin; Yu Qiao; Shi-Gang Sun
單位
出版者
著錄名稱、卷期、頁數 Chemical Science 14(8), 2183-2191
摘要 Anode-free lithium metal batteries (AF-LMBs) can deliver the maximum energy density. However, achieving AF-LMBs with a long lifespan remains challenging because of the poor reversibility of Li+ plating/stripping on the anode. Here, coupled with a fluorine-containing electrolyte, we introduce a cathode pre-lithiation strategy to extend the lifespan of AF-LMBs. The AF-LMB is constructed with Li-rich Li2Ni0.5Mn1.5O4 cathodes as a Li-ion extender; the Li2Ni0.5Mn1.5O4 can deliver a large amount of Li+ in the initial charging process to offset the continuous Li+ consumption, which benefits the cycling performance without sacrificing energy density. Moreover, the cathode pre-lithiation design has been practically and precisely regulated using engineering methods (Li-metal contact and pre-lithiation Li-biphenyl immersion). Benefiting from the highly reversible Li metal on the Cu anode and Li2Ni0.5Mn1.5O4 cathode, the further fabricated anode-free pouch cells achieve 350 W h kg−1 energy density and 97% capacity retention after 50 cycles.
關鍵字
語言 en
ISSN 2041-6539
期刊性質 國外
收錄於 SCI SSCI Scopus
產學合作
通訊作者 Xiaoxiao Kuai, Yan-Gu Lin, Yu Qiao
審稿制度 是
國別 GBR
公開徵稿
出版型式 ,電子版
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