POSITIVE ELECTRODE MATERIAL, POSITIVE ELECTRODE USING THE SAME, AND BATTERY

To provide a positive electrode material having high cycle performance and high discharge capacity, a positive electrode using the positive electrode material, and a battery.SOLUTION: The positive electrode material includes active particles 12 and a modified layer 14 covering the surface of the act...

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Hauptverfasser: LAI GUAN LIN, CHEN CHENUNG, LI YU-HAN, HSU JUNG-MU
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a positive electrode material having high cycle performance and high discharge capacity, a positive electrode using the positive electrode material, and a battery.SOLUTION: The positive electrode material includes active particles 12 and a modified layer 14 covering the surface of the active particles, the modified layer is a reaction product of a composition, the composition includes an ionic conductive ceramic compound, an organic conductive compound, and a coupling agent, the ionic conductive ceramic compound is 50 to 84 pts.wt., the organic conductive compound is 16 to 50 pts.wt., the total weight of the ionic conductive ceramic compound and the organic conductive compound is 100 pts.wt., and the weight percent of the coupling agent is 0.05 wt.% to 10 wt.% with respect to the total weight of the ionic conductive ceramic compound and the organic conductive compound.SELECTED DRAWING: Figure 1 【課題】サイクル性能および高率放電能の高い正極材料、これを用いる正極、および電池を提供する。【解決手段】正極材料は、活性粒子12と、活性粒子の表面を覆う改質層14とを含み、改質層は組成物の反応生成物であり、組成物はイオン伝導性セラミック化合物、有機導電性化合物、およびカップリング剤を含み、イオン伝導性セラミック化合物は50〜84重量部であり、有機導電性化合物は16〜50重量部であり、イオン伝導性セラミック化合物と有機導電性化合物との総重量は100重量部であり、イオン伝導性セラミック化合物と有機導電性化合物との総重量に対し、カップリング剤の重量パーセントは0.05wt%から10wt%である。【選択図】図1