Magnesium insertion into Mg0.5+y(FeyTi1-y)2 (PO4)3

Koji Makino, Yasushi Katayama, Takashi Miura, Tomiya Kishi

研究成果: Conference article査読

21 被引用数 (Scopus)


A series of transition metal phosphates, Mg0.5+y(FeyTi1-y)2 (PO4)3 (MFTP), modified from Mg0.5Ti2(PO4)3 (MTP) were prepared by sol-gel method and evaluated as cathode materials for rechargeable magnesium cells. The crystal structure of MFTP at 0 ≤ y ≤ 0.5 was identical to that of MTP, while their unit cell volumes were smaller than that of MTP due to introduced Mg2+ ions. Electrochemical magnesium insertion into MFTP was found possible as observed for MTP. However, the limiting extent of magnesium insertion into MFTP at 0.1 ≤ y ≤ 0.5 was small compared with MTP and remarkably dependent on the current density during discharge, suggesting that the insertion limit is determined not by the number of available sites for Mg2+ or electrons but by the mobility of Mg2+ in the host varying with the unit cell volume.

ジャーナルJournal of Power Sources
出版ステータスPublished - 2001 7 1
イベント10th International Meeting on Lithium Batteries - Como, Italy
継続期間: 2001 5 282001 6 2

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • エネルギー工学および電力技術
  • 物理化学および理論化学
  • 電子工学および電気工学


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