特集：二次電池と表面科学
高電圧，高出力，高安全二次電池に向けた縮合リン酸塩の科学
2013 年 34 巻 6 号 p. 296-302
詳細
2013 年 34 巻 6 号 p. 296-302
Alkali metal pyrophosphate, A2MP2O7 (A = Li, Na, M = Fe Mn, Co), have been recently reported as novel polyanionic cathode materials for rechargeable alkali-ion batteries with competent electrochemical properties with high rate durability. A closer look revealed they offer the highest operating voltage by M3+/M2+ redox couple among ever reported related compounds. Of particular interest is its much safer nature than olivine LiFePO4 currently recognized as the only practical option providing definitely safe large-scale lithium-ion battery. Scientific origins of these promising features will be unveiled in this article.
