Standards for positive electrode materials of lithium-ion batteries for energy storage

Why do we need new electrode materials for lithium ion batteries?

New electrode materials are required to allow for faster lithium-ion movement within the battery for improved charging speeds. The development of electrode materials with improved structural stability and resilience to lithium-ion insertion/extraction is necessary for long-lasting batteries.

What is a positive electrode for a lithium ion battery?

Positive electrodes for Li-ion and lithium batteries (also termed “cathodes”) have been under intense scrutiny since the advent of the Li-ion cell in 1991. This is especially true in the past decade.

What is the best electrode material for lithium ion batteries?

Transition metal-based electrodes Transition metal (TM) oxides (TM = Ni, Co, Fe, Mn, Nb, Sb, Ti, Mo, Cr, V, etc.) have been demonstrated to be the best electrode materials for Lithium-ion batteries because they deliver high reversible capacity and rate performance compared to conventional graphite electrodes [, , , , , ].

Which electrodes are most common in Li-ion batteries for grid energy storage?

The positive electrodes that are most common in Li-ion batteries for grid energy storage are the olivine LFP and the layered oxide, LiNixMnyCo1-x-yO2 (NMC). Their different structures and properties make them suitable for different applications .

Why do we need new electrode materials for lithium ion insertion/extraction?

The development of electrode materials with improved structural stability and resilience to lithium-ion insertion/extraction is necessary for long-lasting batteries. Therefore, new electrode materials with enhanced thermal stability and electrolyte compatibility are required to mitigate these risks.

What are high-voltage positive electrode materials?

This review gives an account of the various emerging high-voltage positive electrode materials that have the potential to satisfy these requirements either in the short or long term, including nickel-rich layered oxides, lithium-rich layered oxides, high-voltage spinel oxides, and high-voltage polyanionic compounds.