Open AccessPractical energy densities, cost, and technical challenges for magnesium‐sulfur batteries
Author(s) -
Razaq Rameez,
Li Ping,
Dong Yulong,
Li Yao,
Mao Ya,
Bo ShouHang
Publication year - 2020
Publication title -
ecomat
Language(s) - English
Resource type - Journals
ISSN - 2567-3173
DOI - 10.1002/eom2.12056
Subject(s) - commercialization , battery (electricity) , energy storage , energy density , electrolyte , electrochemistry , lithium (medication) , magnesium , limiting , environmental science , materials science , nanotechnology , process engineering , chemistry , engineering , engineering physics , physics , business , mechanical engineering , electrode , metallurgy , medicine , power (physics) , marketing , endocrinology , quantum mechanics
Amid burgeoning environmental concerns, electrochemical energy storage has rapidly gained momentum. Among the contenders in the “beyond lithium” energy storage arena, the magnesium‐sulfur (Mg/S) battery has emerged as particularly promising, owing to its high theoretical energy density. However, the gap between fundamental research and practical application is still hindering the commercialization of Mg/S batteries. Here, through reviewing the recent developments of Mg/S batteries technologies, especially with respect to energy density and cost, we present the primary technical challenges on both materials and device level to surpass the energy density and cost‐effectiveness of lithium‐ion battery. While the high electrolyte‐sulfur ratio and the expensive liquid electrolyte are significantly limiting the practical application of Mg/S batteries, we found that solid‐state Mg electrolyte appears to be a feasible solution on the basis of energy density and cost evaluation.