Will the future’s super batteries be made of seawater?

Science Daily  January 23, 2020
For the Na-ion batteries to become an alternative to lithium-ion batteries, better electrode materials must be developed. An international team of researchers (Denmark, USA – MIT) investigated a new electrode material based on iron, manganese and phosphorus. They found that their charge–discharge transformation strains are significantly reduced by stabilization of a NazMnyFe1–yPO4 solid solution over a wide Na compositional range. This effect even leads to a complete continuous solid solution transformation covering the entire charge process, which shows that the effect of Mn substitution is a highly effective route for reducing intercalation strains even during intercalation of the relatively large Na-ion…read more. TECHNICAL ARTICLE 

Abstract. Credit: ACS Applied Energy Materials, 2019, 2, 11, 8060-8067, November 1, 2019