Improving Cycle Life of Ni-Rich Li-Ion Battery Cathodes by Using Compartmentalized Anode and Cathode Electrolytes.

ABSTRACT: As new, ever more energy-dense battery materials are being developed, it is becoming increasingly challenging for electrolytes to cater for both requirements set by the anode and cathode. Ethylene carbonate plays a key role in forming a stable solid-electrolyte-interphase on the graphite anodes, but in combination with nickel-rich cathodes, such as LiNi_0.8Mn_0.1Co_0.1O₂ (NMC811), it leads to excessive cathode oxygen loss at high voltage. In this work, the study proposes a cell design, where different electrolytes are compartmentalized in the anode and the cathode. An ionically conductive polymer electrolyte membrane is used to prevent two electrolytes from mixing. NMC811 versus graphite full cells using this electrolyte achieved a capacity retentio

SUBMITTER: Sun J 

PROVIDER: S-EPMC11922014 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature