Pseudocapacitive trimetallic NiCoMn-111 perovskite fluorides for advanced Li-ion supercabatteries.

ABSTRACT: Exploring advanced electrochemical energy storage systems and clarifying their charge storage mechanisms are key scientific frontiers presenting a great challenge. Herein, we demonstrate a novel concept of Li-ion supercabatteries (i.e., Li-ion capacitors/batteries, LICBs), which were realized using a novel trimetallic Ni-Co-Mn perovskite fluoride (K_0.97Ni_0.31Co_0.34Mn_0.35F_2.98, denoted as KNCMF-111 (8^#)) anode and a high-performance activated carbon/LiFePO₄ (AC/LFP) cathode, which makes the boundary between LICs and LIBs less distinctive. Thanks to the pseudocapacitive conversion mechanism of the KNCMF-111 (8^#) anode with superior kinetics and the enhanced capacity of the capacitor/battery hybrid

SUBMITTER: Yan T 

PROVIDER: S-EPMC9419713 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature