Arumugam Manthiram

Arumugam Manthiram (

Manthiram discovered that the capacity limitations of layered oxide cathodes is a result of chemical instability that can be understood based on the relative positions of the metal 3d band relative to the top of the oxygen 2p band.[11]^[12][13] This discovery represents the theoretical underpinnings of the anion-redox energy storage mechanism and has had significant implications for the practically accessible compositional space of lithium ion batteries, as well as their stability from a safety perspective.

He has identified the critical parameters needed for transitioning lithium sulfur batteries towards commercial use.^[14][15] Specifically, lithium sulfur batteries need to achieve a sulfur loading of >5 mg cm⁻², a carbon content of <5%, electrolyte-to-sulfur ratio of <5 μL mg⁻¹, electrolyte-to-capacity ratio of <5 μL (mA h)⁻¹, and negative-to-positive capacity ratio of <5 in pouch-type cells.^[14] Key technological advances for lithium sulfur batteries developed by Manthiram include the use of microporous carbon interlayers^[16] and the use of doped graphene sponge electrodes.^[17]

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