摘要:
In a secondary battery including a large-sized electrode group including stacked positive and negative electrode plates, an electrode plate in which failures such as the separation and cracking of an active material layer and the abrasion and cracking of a current collector are unlikely to occur is provided. An electrode plate 21 includes a coated region CR where active material layers 21a are formed and an uncoated region NC where no active material layer is formed and has a configuration in which a boundary section between the coated region and the uncoated region is provided with a first buffer region C2 having a non-linear irregular shape in plan view.
摘要:
An electrode for non-aqueous electrolyte secondary batteries includes a current collector having principal surfaces facing each other and an active material layer which contains an active material, a binder, and a conductive material and which is placed on at least one of the principal surfaces of the current collector. The sum of the volume of the active material per unit area of the current collector and the volume of the conductive material per unit area of the current collector is 9.70×10−2 cm3/cm2 to 24.6×10−2 cm3/cm2, the volume of the active material being calculated from the average particle size D50 of the active material, the volume of the conductive material being calculated from the average particle size D50 of the conductive material. The pore volume of the active material layer per unit area of the current collector is 6.00×10−3 cm3/cm2 to 20.0×10−3 cm3/cm2.
摘要翻译:非水电解质二次电池用电极包括具有彼此相对的主表面的集电体和含有活性物质,粘合剂和导电材料的活性物质层,并且被配置在至少一个主面上 集电器。 集电体每单位面积的活性物质的体积与集电体的每单位面积的导电性材料的体积的总和为9.70×10 -2 cm 3 / cm 2〜24.6×10 -2 cm 3 / cm 2, 活性物质的体积由活性物质的平均粒径D50计算,导电材料的体积由导电材料的平均粒径D50计算。 集电体的单位面积的活性物质层的孔体积为6.00×10 -3 cm 3 / cm 2〜20.0×10 -3 cm 3 / cm 2。
摘要:
The invention relates to novel materials of the formula: AuM1vM2wM3x02±δ wherein A is one or more alkali metals; M1 comprises one or more redox active metals with an oxidation state in the range +2 to +4; M2 comprises tin, optionally in combination with one or more transition metals; M3 comprises one or more transition metals either alone or in combination with one or more non-transition elements selected from alkali metals, alkaline earth metals, other metals, metalloids and non-metals, with an oxidation state in the range +1 to +5; wherein the oxidation state of M1, M2, and M3 are chosen to maintain charge neutrality and further wherein δ is in the range 0≦δ≦0.4; U is in the range 0.3
摘要:
A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1-xMxP1-ySiyO4 (1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0
摘要:
The positive electrode active material of the present invention contains an lithium iron phosphate compound having such diffraction peaks that diffraction peak intensity ratios at 2θ=17.2±0.5°, 2θ=20.8±0.5° and 2θ=25.6±0.5° are from 29 to 37, from 70 to 80 and from 85 to 94, respectively, when the diffraction peak intensity at 2θ=35.6±0.5° is deemed as 100 in a powder X-ray diffractometry using Cu-Kα ray as a radiation source. It becomes possible to provide a positive electrode active material that provides higher rate property and discharge capacity, and a positive electrode and a non-aqueous electrolyte secondary battery using the positive electrode active material.
摘要:
A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1−xMxP1-ySiyO4 (1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0
摘要:
A cathode active material of the present invention is a cathode active material having a composition represented by General Formula (1) below, LiFe1-xMxP1-ySiyO4 (1), where: an average valence of Fe is +2 or more; M is an element having a valence of +2 or more and is at least one type of element selected from the group consisting of Zr, Sn, Y, and Al; the valence of M is different from the average valence of Fe; 0