摘要:
Active material is obtained by sintering a precursor, has a layered structure and is represented by the following formula (1). The temperature at which the precursor becomes a layered structure compound in its sintering in atmospheric air is 450° C. or less. Alternatively, the endothermic peak temperature of the precursor when its temperature is increased from 300° C. to 800° C. in its differential thermal analysis in the atmospheric air is 550° C. or less. LiyNiaCobMncMdOxFz (1) In formula (1), the element M is at least one of Al, Si, Zr, Ti, Fe, Mg, Nb, Ba, and V and 1.9≦(a+b+c+d+y)≦2.1, 1.0≦y≦1.3, 0
摘要翻译:通过烧结前体获得活性物质,具有层状结构并由下式(1)表示。 在大气中烧结时,前体成为层状结构化合物的温度为450℃以下。 或者,当前体在大气中的差热分析中其温度从300℃升高至800℃时,其吸热峰温度为550℃以下。 LiyNiaCobMncMdOxFz(1)在式(1)中,元素M为Al,Si,Zr,Ti,Fe,Mg,Nb,Ba和V中的至少一种,1.9(a + b + c + d + y) @ 2.1,1.0 @ y @ 1.3,0
摘要:
An active material having high capacity and excellent charging/discharging cycle durability at high potential is provided. The active material has a layered structure and is represented by the following composition formula (1): LiyNiaCobMncMdOxFz1Pz2 (1) wherein the element M is at least one element selected from the group consisting of Al, Si, Zr, Ti, Fe, Mg, Nb, Ba and V, and 1.9≦(a+b+c+d+y)≦2.1, 1.0≦y≦1.3, 0
摘要翻译:提供了具有高容量和高电位优良充电/放电循环耐久性的活性材料。 活性材料具有层状结构,并由以下组成式(1)表示:LiyNiaCobMncMdOxFz1Pz2(1)其中元素M为选自Al,Si,Zr,Ti,Fe,Mg, Nb,Ba和V和1.9 @(a + b + c + d + y)@ 2.1,1.0 @ y @ 1.3,0
摘要:
An active material having high capacity and excellent charging/discharging cycle durability at high potential is provided. The active material has a layered structure and is represented by the following composition formula (1): LiyNiaCobMncMdOxFz1Pz2 (1) wherein the element M is at least one element selected from the group consisting of Al, Si, Zr, Ti, Fe, Mg, Nb, Ba and V, and 1.9≦(a+b+c+d+y)≦2.1, 1.0≦y≦1.3, 0
摘要翻译:提供了具有高容量和高电位优良充电/放电循环耐久性的活性材料。 活性材料具有层状结构,并由以下组成式(1)表示:LiyNiaCobMncMdOxFz1Pz2(1)其中元素M为选自Al,Si,Zr,Ti,Fe,Mg, Nb,Ba和V以及1.9和nlE;(a + b + c + d + y)≦̸ 2.1,1.0≦̸ y≦̸ 1.3,0
摘要:
A method for manufacturing an active material, capable of improving the discharge capacity of a lithium ion secondary battery is provided. The method for manufacturing an active material according to the present invention includes a first step of heating a mixture solution including a lithium source, a phosphate source, a vanadium source, and water under pressure to generate a precursor in the mixture solution, and adjusting the pH of the mixture solution including the precursor to be 6 to 8; and a second step of heating the precursor at 425 to 650° C. after the first step to generate an active material.
摘要:
An active material capable of improving the discharge capacity of a lithium ion secondary battery is provided. The active material of the present invention includes LiVOPO4 and one or more metal elements selected from the group consisting of Al, Nb, Ag, Mg, Mn, Fe, Zr, Na, K, B, Cr, Co, Ni, Cu, Zn, Si, Be, Ti, and Mo.
摘要:
To provide an active material from which a sufficient discharge capacity is obtained, an electrode containing the active material, a lithium secondary battery including the electrode, and a method for making an active material. A method for making an active material includes a temperature elevation step of heating a mixture containing a lithium source, a pentavalent vanadium source, a phosphoric acid source, water, and a reductant in a hermetically sealed container at a temperature elevation rate T1 from 25° C. to 110° C. and then at a temperature elevation rate T2 from 110° C. to a designated temperature of 200° C. or more, in which T1>T2; T1=0.5 to 10° C./min; and T2=0.1 to 2.2° C./min.
摘要:
An active material capable of improving the discharge capacity of a lithium ion secondary battery is provided. The active material of the present invention includes LiVOPO4 and one or more metal elements selected from the group consisting of Al, Nb, Ag, Mg, Mn, Fe, Zr, Na, K, B, Cr, Co, Ni, Cu, Zn, Si, Be, Ti, and Mo.
摘要:
To provide an active material from which a sufficient discharge capacity is obtained, an electrode containing the active material, a lithium secondary battery including the electrode, and a method for making an active material. A method for making an active material includes a temperature elevation step of heating a mixture containing a lithium source, a pentavalent vanadium source, a phosphoric acid source, water, and a reductant in a hermetically sealed container at a temperature elevation rate T1 from 25° C. to 110° C. and then at a temperature elevation rate T2 from 110° C. to a designated temperature of 200° C. or more, in which T1>T2; T1=0.5 to 10° C./min; and T2=0.1 to 2.2° C./min.
摘要:
The method of manufacturing an active material in accordance with the first aspect of the invention yields an active material containing LiVOPO4 capable of improving the cycle characteristic of a battery. Methods of manufacturing active materials in accordance with the second, third, and fourth aspects of the present invention yield active materials containing LiVOPO4 capable of improving the discharge capacity of a battery.
摘要:
The present invention is a bodyshell structure of a railcar, the bodyshell structure including a plurality of side window opening portions formed on a side bodyshell along a railcar longitudinal direction, and the side window opening portions include a plurality of large window opening portions arranged on a railcar-longitudinal-direction center portion of the side bodyshell and a plurality of small window opening portions arranged on both railcar-longitudinal-direction sides of the large window opening portions and each having a smaller opening area than the large window opening portion.