Transition metal-doped Ni-rich layered cathode materials for durable Li-ion batteries.

ABSTRACT: Doping is a well-known strategy to enhance the electrochemical energy storage performance of layered cathode materials. Many studies on various dopants have been reported; however, a general relationship between the dopants and their effect on the stability of the positive electrode upon prolonged cell cycling has yet to be established. Here, we explore the impact of the oxidation states of various dopants (i.e., Mg²⁺, Al³⁺, Ti⁴⁺, Ta⁵⁺, and Mo⁶⁺) on the electrochemical, morphological, and structural properties of a Ni-rich cathode material (i.e., Li[Ni_0.91Co_0.09]O₂). Galvanostatic cycling measurements in pouch-type Li-ion full cells show that cathodes featuring dopants with high oxidation states signifi

SUBMITTER: Sun HH 

PROVIDER: S-EPMC8589951 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature