Li二次電池正極材料Li_xMn_2-yM_yO₄（M=Mg, Al, Cr, Mn）の熱力学安定性および結晶構造のLi量依存

• 井手本 康

  東京理科大学理工学部

• 堀子 和孝

  東京理科大学理工学部

• 宇井 幸一

  東京理科大学理工学部

• 小浦 延幸

  東京理科大学理工学部

書誌事項

タイトル別名

• Thermodynamic Stability and Crystal Structure Dependence of Li Content for Li_xMn_2-yM_yO₄(M = Mg, Al, Cr, Mn) as a Cathode Active Material for Li Secondary Battery
• Li二次電池正極材料LixMn2-yMyO4(M=Mg,Al,Cr,Mn)の熱力学安定性および結晶構造のLi量依存
• Li 2ジ デンチ セイキョク ザイリョウ LixMn2 yMyO4 M Mg Al Cr Mn ノ ネツリキガク アンテイセイ オヨビ ケッショウ コウゾウ ノ Liリョウ イゾン

抄録

We investigated the relation between the thermodynamic stability and crystal structure dependence of Li content for the substituted spinel, Li_xMn_2-yM_yO₄ (M = Mg, Al, Cr, Mn). The enthalpy change per mole of atoms for the formation reaction, ΔH_R, were calculated from the heat of dissolution. ΔH_R increased with the decreasing Li content. ΔH_R of the all amounts of Li content for Li_xMn_2-yM_yO₄ (M = Mg, Al, Cr, Mn) decreased compared to that of Li_xMn_2-yM_yO₄. The crystal structure analysis by powder neutron diffraction was examined for Li_xMn_2-yM_yO₄ (M = Mg, Al, Cr, Mn). The Madelung energy increases with decreasing Li content for Li_xMn₂O₄, and it was associated with the thermodynamic data. From these results, the host structure is structurally and thermodynamically stable of the all amounts of Li content with the substitution of M for Li_xMn_2-yM_yO₄.

収録刊行物

• Electrochemistry

  Electrochemistry 72 (10), 680-687, 2004-10-05

  公益社団法人　電気化学会

キーワード

• Li Secondary Battery
• Cathode Material
• Thermodynamic Stability
• Crystal Structure

詳細情報

• CRID: 1390001288144435968
• NII論文ID: 10013365124
• NII書誌ID: AN00151637
• DOI: 10.5796/electrochemistry.72.680
• ISSN: 21862451
• ISSN: 13443542
• NDL書誌ID: 7113211
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7113211
• Web Site: https://www.jstage.jst.go.jp/article/electrochemistry/72/10/72_680/_pdf
• 本文言語コード: ja
• データソース種別:
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• 抄録ライセンスフラグ: 使用可