Jang, Juyoung Kang, Inyeong Choi, Jinkwan Jeong, Hyangsoo Yi, Kyung-Woo Hong, Jihyun Lee, Minah 2024-01-19T17:00:57Z 2024-01-19T17:00:57Z 2021-09-02 2020-08-17 1433-7851 https://pubs.kist.re.kr/handle/201004/118252 Prelithiation is of great interest to Li-ion battery manufacturers as a strategy for compensating for the loss of active Li during initial cycling of a battery, which would otherwise degrade its available energy density. Solution-based chemical prelithiation using a reductive chemical promises unparalleled reaction homogeneity and simplicity. However, the chemicals applied so far cannot dope active Li in Si-based high-capacity anodes but merely form solid-electrolyte interphases, leading to only partial mitigation of the cycle irreversibility. Herein, we show that a molecularly engineered Li-arene complex with a sufficiently low redox potential drives active Li accommodation in Si-based anodes to provide an ideal Li content in a full cell. Fine control over the prelithiation degree and spatial uniformity of active Li throughout the electrodes are achieved by managing time and temperature during immersion, promising both fidelity and low cost of the process for large-scale integration. English John Wiley & Sons Ltd. NEGATIVE ACTIVE MATERIAL ELECTRODE Molecularly Tailored Lithium-Arene Complex Enables Chemical Prelithiation of High-Capacity Lithium-Ion Battery Anodes Article 10.1002/anie.202002411 1 Angewandte Chemie International Edition, v.59, no.34, pp.14473 - 14480 Angewandte Chemie International Edition 59 34 14473 14480 scie scopus 000563971400047 2-s2.0-85086438436 Chemistry, Multidisciplinary Chemistry Article NEGATIVE ACTIVE MATERIAL ELECTRODE arenes electrochemistry lithiation lithium-ion batteries redox chemistry