摘要:
With the object of providing a positive electrode active material for lithium battery that can increase the filling density, can increase the output characteristics, and furthermore, with a small voltage decrease during conservation at high temperature in a charged state, a positive electrode active material for lithium battery is proposed, containing a spinel type (Fd3-m) lithium transition metal oxide represented by general formula Li 1+x M 2-x O 4-δ (where M represents a transition metal including Mn, Al and Mg, x represents 0.01 to 0.08 and 0≦δ) and a boron compound, the inter-the atomic distance Li-O of the spinel type lithium transition metal oxide being 1.971 Å to 2.006 Å, and the amount of magnetic substance measured for the positive electrode active material for lithium battery being 600 ppb or less.
摘要翻译:本发明的目的是提供一种能够提高填充密度的锂电池用正极活性物质,能够提高输出特性,此外,在充电状态下,在高温保存期间电压降低小的正极活性物质 提出了含有由通式Li 1 + x M 2-x O 4-'表示的尖晶石型(Fd3-m)锂过渡金属氧化物的锂电池(其中M表示包括Mn,Al和Mg的过渡金属,x表示 0.01至0.08和0‰|)和硼化合物,尖晶石型锂过渡金属氧化物的原子间距离Li-O为1.971至2.006,以及对正极活性物质测量的磁性物质的量 锂电池材料为600 ppb以下。
摘要:
Provided is spinel-type lithium transition metal oxide (LMO) used as a positive electrode active material for lithium battery, said LMO being capable of simultaneously achieving all output characteristics (rate characteristics), high temperature cycle life characteristics, and rapid charging characteristics. The disclosed is spinel-type lithium transition metal oxide including, besides Li and Mn, one or more elements selected from a group consisting of Mg, Ti, Ni, Co, and Fe, and having crystallite size of between 200 nm and 1000 nm and strain of 0.0900 or less. Because the crystallite size is markedly large, oxygen deficiency is markedly little, and the structure is strong, when the LMO is used as a positive electrode active material for lithium secondary batteries, all output characteristics (rate characteristics), high temperature cycle life characteristics, and rapid charging characteristics can be achieved simultaneously.
摘要:
A positive electrode active material for battery consisting of electrolytic manganese dioxide and a battery wherein this positive electrode active material is used, this electrolytic manganese dioxide being such that, when it is heated and the weight loss thereof is measured, the weight loss at 200°C to 400°C is not less than 2.7 wt%. The amount of weight lost in this temperature range is proportional to the quantity of bound waters inside the electrolytic manganese dioxide.
摘要:
A new spinel type lithium-transition metal oxide (LMO) which attains excellent output characteristics and preferably is capable of reconciling output characteristics with high-temperature cycle life characteristics. It is represented by the general formula Li1+xM2-xO4 (wherein M is transition metals including Mn, Al, and Mg; and x is 0.01-0.08). The lithium-transition metal oxide is regulated so as to have an Li-O atomic distance, as determined by the Rietveld method based on the fundamental method, of 1.971-2.006 Å. Thus, the new spinel type lithium-transition metal oxide attains excellent output characteristics.
摘要:
The present invention provides a zinc foil that can be used as a negative electrode active material, and in a battery including the zinc foil as a negative electrode active material, the amount of gas generated during long term storage of the battery is reduced as compared with that in a battery including a conventional zinc foil. The zinc foil contains zinc as a main material and bismuth. The bismuth content is 100 ppm or more and 10000 ppm or less on a mass basis. The zinc crystal grain size is 0.2 µm or more and 8 µm or less. The bismuth crystal grain size is less than 1000 nm, as measured in a backscattered electron image obtained using a scanning electron microscope. The zinc foil is free of aluminum and/or lead, or even if the zinc foil contains aluminum and/or lead, the aluminum content is 1% or less on a mass basis and/or the lead content is 200 ppm or less on a mass basis.
摘要:
In order to provide a novel spinel type lithium transition metal oxide (LMO) having excellent power performance characteristics, in which preferably both the power performance characteristics and the cycle performance at high temperature life characteristics may be balanced, a novel spinel type lithium transition metal oxide with excellent power performance characteristics is proposed by defining the inter-atomic distance Li-O to be 1.971Å to 2.006Å as measured by the Rietveld method using the fundamental method in a lithium transition metal oxide represented by the general formula Li 1+x M 2-x O 4 (where M is a transition metal including Mn, Al and Mg and x is 0.01 to 0.08).
摘要翻译:为了提供具有优异的功率性能特征的新颖的尖晶石型锂过渡金属氧化物(LMO),其优选可以平衡高温寿命特性的功率性能特性和循环性能,新颖的尖晶石型锂过渡金属氧化物 通过使用由通式Li 1 + x M表示的锂过渡金属氧化物中的基本方法通过Rietveld方法测定的原子间距离Li-O为1.971〜2.006,提出了优异的功率性能特性 2-x O 4(其中M是包括Mn,Al和Mg的过渡金属,x是0.01至0.08)。