Five Volts Lithium Batteries with Advanced Carbonate-Based Electrolytes: A Rational Design via a Trio-Functional Addon Materials.

Autor: Zhang F; Department of Materials Science and Engineering, Guangdong Technion-Israel Institute of Technology, 241 Daxue Road, Shantou, 515063, P. R. China.; Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel., Zhang P; Department of Materials Science and Engineering, Tiangong University, 399 Binshui Road, Tianjin, 300387, P. R. China., Zhang W; National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, P. R. China., Gonzalez PR; Department of Biology and Food Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel., Tan DQ; Department of Materials Science and Engineering, Guangdong Technion-Israel Institute of Technology, 241 Daxue Road, Shantou, 515063, P. R. China.; Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel.; Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion-Israel Institute of Technology, 241 Daxue Road, Shantou, 515063, P. R. China., Ein-Eli Y; Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel.; Israel National Institute of Energy Storage (INIES), Technion-Israel Institute of Technology, Haifa, 3200003, Israel.; Grand Technion Energy Program (GTEP), Technion-Israel Institute of Technology, Haifa, 3200003, Israel.
Jazyk: angličtina
Zdroj: Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2024 Nov; Vol. 36 (44), pp. e2410277. Date of Electronic Publication: 2024 Sep 09.
DOI: 10.1002/adma.202410277
Abstrakt: Lithium metal batteries paired with high-voltage LiNi 0.5 Mn 1.5 O 4 (LNMO) cathodes are a promising energy storage source for achieving enhanced high energy density. Forming durable and robust solid-electrolyte interphase (SEI) and cathode-electrolyte interface (CEI) and the ability to withstand oxidation at high potentials are essential for long-lasting performance. Herein, advanced electrolytes are designed via trio-functional additives to carbonate-based electrolytes for 5 V Li||LNMO and graphite||LNMO cells achieving 88.3% capacity retention after 500 charge-discharge cycles. Theoretical calculations reveal that adding adiponitrile facilitates the presence of more hierarchical DFOB - and PF 6 - dual anion structure in the solvation sheath, leading to a faster de-solvation of the Li cation. By combining both fluorine and nitrile additives, an efficient synergistic effect is obtained, generating robust thin inorganic SEI and CEI films, respectively. These films enhance microstructural stability; Li dendrite growth on the Li electrode is being suppressed at the anode side and transition-metals dissolution from the cathode is being mitigated, as evidenced by cryo-transmission electron microscopy and synchrotron studies.
(© 2024 The Author(s). Advanced Materials published by Wiley‐VCH GmbH.)
Databáze: MEDLINE
Externí odkaz: