Effects of multi-dopants (Zn and Ho) in stabilizing spinel structure for cathode materials in lithium rechargeable batteries—Novel chelated sol–gel synthesis

Thirunakaran, R.; Kim, Taewhan; Yoon, Won‐Sub

doi:10.1016/j.partic.2015.03.003

Cited by 8 publications

(1 citation statement)

References 43 publications

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“…More aspects related to LiNi 0.5 Mn 1.5 O 4 will be discussed in other sections of the review (see Future prospects). Strategies employed for enhancing structural stability of the lithium manganese oxide spinel included cation multi doping [71][72][73][74][75][76].…”

Section: Limn 2 O 4 Heteroatoms Dopingmentioning

confidence: 99%

Enhancing Lithium Manganese Oxide Electrochemical Behavior by Doping and Surface Modifications

Marincaş

Ilea

2021

Coatings

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Lithium manganese oxide is regarded as a capable cathode material for lithium-ion batteries, but it suffers from relative low conductivity, manganese dissolution in electrolyte and structural distortion from cubic to tetragonal during elevated temperature tests. This review covers a comprehensive study about the main directions taken into consideration to supress the drawbacks of lithium manganese oxide: structure doping and surface modification by coating. Regarding the doping of LiMn2O4, several perspectives are studied, which include doping with single or multiple cations, only anions and combined doping with cations and anions. Surface modification approach consists in coating with different materials like carbonaceous compounds, oxides, phosphates and solid electrolyte solutions. The modified lithium manganese oxide performs better than pristine samples, showing improved cyclability, better behaviour at high discharge c-rates and elevated temperate and improves lithium ions diffusion coefficient.

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