Low-Temperature Charge/Discharge of Rechargeable Battery Realized by Intercalation Pseudocapacitive Behavior.

ABSTRACT: Conventional intercalation compounds for lithium-ion batteries (LIBs) suffer from rapid capacity fading and are even unable to charge-discharge with temperature decline, owing to the sluggish kinetics and solvation/desolvation process. In this work, a high-performance rechargeable battery at ultralow temperature is developed by employing a nanosized Ni-based Prussian blue (NiHCF) cathode. The battery delivers a high capacity retention of 89% (low temperature of -50 °C) and 82% (ultralow temperature of -70 °C) compared with that at +25 °C. Various characterizations and electrochemical investigations, including operando Fourier transform infrared spectra, in situ X-ray diffraction, cyclic voltammetry response, and galvanostatic intermittent titration technique are carried out to detect the s

SUBMITTER: Dong X 

PROVIDER: S-EPMC7375234 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature