Abstract:
An electrode material for a lithium ion secondary battery of the present invention includes an electrode active material made of LiFexMn1-x-yMyPO4 (0.05≦x≦0.35, 0.005≦y≦0.14) in which the M is at least one selected from Co and Zn which are elements that are electrochemically inactive in a voltage range of 1.0 V to 4.3 V and have a smaller ionic radius than Mn, a crystal structure is orthorhombic, a space group is Pmna, values of crystal lattice constants a, b, and c satisfy 10.28 Å≦a≦10.42 Å, 6.000 Å≦b≦6.069 Å, and 4.710 Å≦c≦4.728 Å, and lattice volume V satisfies 289.00 Å3≦V≦298.23 Å3.
Abstract translation:本发明的锂离子二次电池用电极材料包括由LiFexMn1-x-yMyPO4(0.05≦̸ x≦̸ 0.35,0.005和nlE; y≦̸ 0.14)制成的电极活性物质,其中M为选自 Co和Zn是在1.0V至4.3V的电压范围内具有电化学惰性的元素,并且具有比Mn更小的离子半径,晶体结构是正交的,空间群是Pmna,晶格常数a,b, 和c满足10.28Å和n E;;;;;ÅÅÅn n; and and and and;;;; and and and and and and and and and and and and and V V V V V V V V V V V V V V V V V V V V V V V V V V V V V。。。。。。。。。。
Abstract:
There are provided an electrode material for a lithium ion secondary battery having a high discharge capacity and a high mass energy density at a low temperature or at a high-speed charge and discharge, an electrode for a lithium ion secondary battery, and a lithium ion secondary battery.An electrode material for a lithium ion secondary battery of the present invention includes an electrode active material made of LiFexMn1-x-yMyPO4 (0.220≦x≦0.350, 0.0050≦y≦0.018) in which the M is either or both of Co and Zn, the electrode material has an orthorhombic crystal structure, a space group is Pnma, values of crystal lattice constants a, b, and c satisfy 10.28 Å≦a≦10.42 Å, 6.000 Å≦b≦6.069 Å, and 4.710 Å≦c≦4.728 Å, and lattice volume V satisfies 289.00 Å3≦V≦298.23 Å3.
Abstract translation:提供了一种用于锂离子二次电池的电极材料,其在低温或高速充放电时具有高放电容量和高质量能量密度,锂离子二次电池用电极和锂离子 二次电池 本发明的锂离子二次电池用电极材料包括由LiFexMn1-x-yMyPO4(0.220≦̸ x≦̸ 0.350,0.0050≦̸ y≦̸ 0.018)制成的电极活性物质,其中M是Co 和Zn,电极材料具有正交晶体结构,空间群为Pnma,晶格常数a,b和c的值满足10.28Å≦̸ a≦̸ 10.42Å,ÅÅÅÅE;;;;;;; and and and;;;;;;;;;;;;;;;; c≦̸ 4.728Å,晶格体积V满足289.00Å3≦̸ V≦̸ 298.23Å3。
Abstract:
A cathode material including an aggregate formed by aggregating active material particles, in which the active material particle is a particle including a cathode active material as a formation material and a carbonaceous material is provided on a surface of the particle, a ratio between a weight ratio of carbon contained in the aggregate to a BET specific surface area of the cathode material is in a range of 0.08 to 0.2, a tap density is in a range of 0.9 g/cm3 to 1.5 g/cm3, and an oil absorption amount for which N-methyl-2-pyrrolidone is used is 70 cc/100 g or less.
Abstract translation:包括通过聚集活性物质颗粒而形成的聚集体的阴极材料,其中活性物质颗粒是包含作为形成材料的正极活性物质的颗粒和碳质材料,在颗粒的表面上设置重量比 聚合物中所含的碳与阴极材料的BET比表面积的比例为0.08〜0.2,振实密度为0.9g / cm 3〜1.5g / cm 3,吸油量为 使用N-甲基-2-吡咯烷酮为70cc / 100g以下。
Abstract:
Embodiments provide an electrode material for a lithium ion battery capable of decreasing a metal elution amount even when an electrode active material having a large specific surface area is used as the electrode material and capable of obtaining a lithium ion battery in which a decrease in a capacity caused by storage at a high temperature in a fully charged state is suppressed and a lithium ion battery. The electrode material for a lithium ion battery includes electrode active material particles and a carbonaceous film that coats surfaces of the electrode active material particles, in which a tap density is 0.95 g/cm3 or more and 1.6 g/cm3 or less, and a volume ratio of micro pores to a total volume that is evaluated from nitrogen adsorption measurement is 1.5% or more and 2.5% or less.
Abstract:
A positive electrode material for lithium ion secondary batteries includes central particles composed of LiFexMn1-x-yMyPO4 (0.05≦x≦1.0, 0≦y≦0.14, wherein M represents at least one element selected from Mg, Ca, Co, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, and rare earth elements), and a carbonaceous film that covers surfaces of the central particles, in which a specific magnetization is 0.70 emu/g or less, and an amount of water detected by a Karl Fischer titration method (coulometric titration method) in a temperature range of 100° C. or higher and 250° C. or lower is 8,000 ppm or less.
Abstract:
An electrode material including electrode active material particles and a carbonaceous film layer coating surfaces of the electrode active material particles and including a metal oxide, a content ratio of the metal oxide in the carbonaceous film layer being 5% by mass to 70% by mass. A method for manufacturing an electrode material, in which electrode active material particles, a metal salt or metal alkoxide containing any one or more metal atoms selected from a group consisting of Al, Zr, Si, and Ti, and an organic compound which is a precursor of carbon are mixed so that a total blending amount of the metal salt or metal alkoxide satisfies that an amount of a metal oxide in the carbonaceous film layer when the metal salt or metal alkoxide is all changed to the metal oxide is 5% by mass to 70% by mass, and are heated in a non-oxidative atmosphere.
Abstract:
A cathode material including active material particles formed of a cathode active material, in which the cathode active material is LixAyDzPO4 (here, A represents one or more metal elements selected from a group consisting of Fe, Co, Mn, Ni, Cu and Cr, D represents one or more metal elements selected from a group consisting of Mg, Ca, Sr, Ba, Ti, Zn, Ge, Sc, Y, and rare earth elements, 0
Abstract:
Provided is a positive electrode active material for lithium ion batteries, which is capable of realizing stability and safety at a high voltage, a high energy density, high load characteristics, and long-term cycle characteristics by controlling a crystal shape of LiMnPO4 particles having a crystal structure very suitable for Li diffusion or controlling an average primary particle size, a production method thereof, an electrode for lithium ion batteries, and a lithium ion battery. The positive electrode active material for lithium ion batteries of the invention is a positive electrode active material for lithium ion batteries, which is formed from LiMnPO4. Values of lattice constants a, b, and c, which are calculated from an X-ray diffraction pattern, satisfy 10.41 Å
Abstract:
An electrode material includes surface-coated LixAyDzPO4 particles that contain Fe on surfaces of LixAyDzPO4 (wherein A represents one or two or more elements selected from the group consisting of Co, Mn, Ni, Cu, and Cr; D represents one or two or more elements selected from the group consisting of Mg, Ca, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, Sc, Y, and rare earth elements; 0