Lithium sulfide: a promising prelithiation agent for high‐performance lithium‐ion batteries
Junkang Huang,
Weifeng Li,
Wenli Zhang,
Bixia Lin,
Yang Wang,
Siu Wing Or,
Shuhui Sun,
Zhenyu Xing
Affiliations
Junkang Huang
School of Chemistry South China Normal University Guangzhou P. R. China
Weifeng Li
School of Chemistry South China Normal University Guangzhou P. R. China
Wenli Zhang
Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light Industry Guangdong University of Technology Guangzhou P. R. China
Bixia Lin
School of Chemistry South China Normal University Guangzhou P. R. China
Yang Wang
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun P. R. China
Siu Wing Or
Department of Electrical and Electronic Engineering The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong
Shuhui Sun
Institut National de la Recherche Scientifique (INRS) Centre Énergie Matériaux Télécommunications Varennes Canada
Zhenyu Xing
School of Chemistry South China Normal University Guangzhou P. R. China
Abstract Lithium‐ion batteries are widely used in portable electronics and electric vehicles due to their high energy density, stable cycle life, and low self‐discharge. However, irreversible lithium loss during the formation of the solid electrolyte interface greatly impairs energy density and cyclability. To compensate for the lithium loss, introducing an external lithium source, that is, a prelithiation agent, is an effective strategy to solve the above problems. Compared with other prelithiation strategies, cathode prelithiation is more cost‐effective with simpler operation. Among various cathode prelithiation agents, we first systematically summarize the recent progress of Li2S‐based prelithiation agents, and then propose some novel strategies to tackle the current challenges. This review provides a comprehensive understanding of Li2S‐based prelithiation agents and new research directions in the future.
