DataVXAdvanced MaterialsPaper
journal article·2024-11Open access

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

Fuming Zhang, Peng Zhang, Wenhua Zhang, Pedro R. Gonzalez, Daniel Q. Tan, Yair Ein‐Eli

Advanced Materials· Volume 36· Issue 44
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Abstract

Abstract 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.
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Research context

Energy storage

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

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

Department of Materials Science and Engineering Tiangong University 399 Binshui Road Tianjin 300387 P. R. China

National Synchrotron Radiation Laboratory University of Science and Technology of China Hefei 230029 P. R. China

Department of Biology and Food 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

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

Funding

High-end Foreign Experts Recruitment Plan of China · Guangdong Provincial Department of Science and Technology

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