A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
LITHIUM COMPOSITE OXIDE SINTERED BODY PLATE
To provide a thick lithium composite oxide sintered body plate which can exhibit an excellent performance such as a high-speed charge performance when incorporated in a lithium secondary battery as a positive electrode while having a high energy density.SOLUTION: A lithium composite oxide sintered body plate according to the present invention has a structure in which a plurality of primary particles each having a lamellar rock-salt structure are bound to each other. Of the lithium composite oxide sintered body plate, the porosity is 3-40%, the average pore diameter is 15 μm or less, the open pore rate is 70% or more, the thickness is 15-200 μm, the primary particle diameter is 20 μm or less, which is an average particle diameter of the plurality of primary particles, the average angle of inclination of the plurality of primary particles is over 0° up to 30°, and the average angle of inclination is an average of angles of (003) planes of the plurality of primary particles with respect to a plate face of the lithium composite oxide sintered body plate.SELECTED DRAWING: Figure 1
【課題】高いエネルギー密度を有しながらも、リチウム二次電池に正極として組み込まれた場合に、急速充電性能等の優れた性能を呈することが可能な、厚いリチウム複合酸化物焼結体板を提供する。【解決手段】本発明のリチウム複合酸化物焼結体板は、層状岩塩構造を有する複数の一次粒子が結合した構造を有しており、かつ、気孔率が３〜４０％であり、平均気孔径が１５μｍ以下であり、開気孔比率が７０％以上であり、厚さが１５〜２００μｍであり、複数の一次粒子の平均粒径である一次粒径が２０μｍ以下であり、複数の一次粒子の平均傾斜角が０°を超え３０°以下であり、平均傾斜角は、複数の一次粒子の（００３）面とリチウム複合酸化物焼結体板の板面とがなす角度の平均値である。【選択図】図１
LITHIUM COMPOSITE OXIDE SINTERED BODY PLATE
To provide a thick lithium composite oxide sintered body plate which can exhibit an excellent performance such as a high-speed charge performance when incorporated in a lithium secondary battery as a positive electrode while having a high energy density.SOLUTION: A lithium composite oxide sintered body plate according to the present invention has a structure in which a plurality of primary particles each having a lamellar rock-salt structure are bound to each other. Of the lithium composite oxide sintered body plate, the porosity is 3-40%, the average pore diameter is 15 μm or less, the open pore rate is 70% or more, the thickness is 15-200 μm, the primary particle diameter is 20 μm or less, which is an average particle diameter of the plurality of primary particles, the average angle of inclination of the plurality of primary particles is over 0° up to 30°, and the average angle of inclination is an average of angles of (003) planes of the plurality of primary particles with respect to a plate face of the lithium composite oxide sintered body plate.SELECTED DRAWING: Figure 1
【課題】高いエネルギー密度を有しながらも、リチウム二次電池に正極として組み込まれた場合に、急速充電性能等の優れた性能を呈することが可能な、厚いリチウム複合酸化物焼結体板を提供する。【解決手段】本発明のリチウム複合酸化物焼結体板は、層状岩塩構造を有する複数の一次粒子が結合した構造を有しており、かつ、気孔率が３〜４０％であり、平均気孔径が１５μｍ以下であり、開気孔比率が７０％以上であり、厚さが１５〜２００μｍであり、複数の一次粒子の平均粒径である一次粒径が２０μｍ以下であり、複数の一次粒子の平均傾斜角が０°を超え３０°以下であり、平均傾斜角は、複数の一次粒子の（００３）面とリチウム複合酸化物焼結体板の板面とがなす角度の平均値である。【選択図】図１
LITHIUM COMPOSITE OXIDE SINTERED BODY PLATE
リチウム複合酸化物焼結体板
YURA YUKINOBU (author) / OKADA SHIGEKI (author)
2019-06-20
Patent
Electronic Resource
Japanese