Concentration shift experiment with an electrode of active material for precise electrochemical analysis.

ABSTRACT: To precisely evaluate the electrochemical properties of a battery of active material, we proposed a "concentration shift experiment" using single-particle electrochemical measurement (SPEM) and a diluted electrode sheet (DES). SPEM can be used for information, such as the charge-discharge and resistance properties of only the active material (extremely dilute condition: ≈0). DES consists of concentrations varying from 1% to 100% of the active material (LiCoO₂) and inactive material (α-Al₂O₃), electrically conductive additive and binder polymer onto an Al current collector. The resistance components derived from the LiCoO₂ single particles were measured and calculated. Their apparent activation energy (E_a) was 27 kJ mol^-1

SUBMITTER: Sawahashi T 

PROVIDER: S-EPMC10354599 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature