摘要:
There can be provided a positive electrode active material for a secondary battry which is excellent in the charging and discharging cycle characteristics so that it retains high battery capacity that is comparable to the hitherto known LiNiO2 even by increasing the number of cycle, which has an improved cycle property (stability) at high temperature and which is a complex oxide represented by the general formula (I)LiyNi1-xCox1Mx2O2 nullnull(I)(wherein M represents at least one element selected from the group consisting of Al, Fe, Mn and B, y represents 0.9nullynull1.3, x represents 0
摘要翻译:可以提供一种充电和放电循环特性优异的二次电抗器用正极活性物质,使得即使通过增加循环次数也能保持与现有已知的LiNiO2相当的高电池容量,其具有改善的 (I)表示的复合氧化物,其中在线式(I)中,式(I)表示的复合氧化物,其中在线式中,Li + >(其中M表示选自Al,Fe,Mn和B中的至少一种元素,y表示0.9 <= y <= 1.3,x表示0
摘要:
A method for producing a positive electrode material of Li-ion secondary batteries is disclosed. The positive electrode material of the following formula (I),Li1nullxMn2nullyMyO4nullnull(I)wherein M is Al, Cr, Fe, Co, or Ni; 0nullxnull0.4, and 0nullynull0.2. First, salts of Li, Mn and M are mixed with an organic acid to form an initial solution, wherein the mole ratio of Li, Mn and M ions in their respective salts is (1nullx): (2nully): y. Next, the initial solution is injected into a spraying chamber of a combustor to generate powders. By adjusting flow rates of the initial solution, the output port of the spraying chamber is maintained at 150null C.-200null C. Finally, the final product can be obtained by heating the powders.
摘要翻译:公开了一种锂离子二次电池正极材料的制造方法。 下式(I)的正极材料Li1 + xMn2-yMyO4(I)其中M为Al,Cr,Fe,Co或Ni; 0 <= x <= 0.4,0 <= y <= 0.2。 首先,将Li,Mn和M的盐与有机酸混合以形成初始溶液,其中各自的盐中的Li,Mn和M离子的摩尔比为(1 + x):(2-y):y 。 接下来,将初始溶液注入到燃烧器的喷雾室中以产生粉末。 通过调节初始溶液的流速,喷雾室的输出端口保持在150°C-200°C。最后,可以通过加热粉末获得最终产品。
摘要:
A porous catalyst support having an increased average pore size is produced from a mixed metal oxide material. In accordance with one embodiment, a method for preparing a mixed metal oxide material includes providing a mixed metal oxide precursor containing at least two metals, calcining the mixed metal oxide precursor at a temperature sufficient to form a thermally and mechanically stable mixed metal oxide material, and leaching the mixed metal oxide material in a leach solution with a constituent that dissolves one metal oxide. Preferably, the calcination temperature is approximately between 300null C. and 1300null C. The leaching constituent may be chosen from the group including acidic solutions of HCl, HNO3, H2SO4, H3PO3, and their combinations, or basic solutions of NH3, NaOH, KOH, and their combinations.
摘要翻译:具有增加的平均孔径的多孔催化剂载体由混合金属氧化物材料制成。 根据一个实施方案,制备混合金属氧化物材料的方法包括提供含有至少两种金属的混合金属氧化物前体,在足以形成热和机械稳定的混合金属氧化物材料的温度下煅烧所述混合金属氧化物前体, 并且将所述混合金属氧化物材料浸出在溶解有一种金属氧化物的成分的浸出溶液中。 优选地,煅烧温度约为300℃至1300℃。浸出组分可以选自HCl,HNO 3,H 2 SO 4,H 3 PO 3及其组合的酸性溶液或NH 3,NaOH, KOH及其组合。
摘要:
Methods of making ceramics, including ceramic abrasive particles, comprising alumina (in some embodiments, alpha alumina). The ceramic abrasive particles can be incorporated into a variety of abrasive articles, including bonded abrasives, coated abrasives, nonwoven abrasives, and abrasive brushes.
摘要:
The invention relates to lithium mixed oxide particles coated with one or more layers of alkali metals and metal oxides for improving the properties of electrochemical cells.
摘要:
Ceramic inert anodes useful for the electrolytic production of aluminum are disclosed. The inert anodes comprise oxides of Ni, Fe and Al. The NinullFenullAl oxide inert anode materials have sufficient electrical conductivity at operation temperatures of aluminum production cells, and also possess good mechanical stability. The NinullFenullAl oxide inert anodes may be used to produce commercial purity aluminum.
摘要:
A non-aqueous electrolyte cell having improved cyclic characteristics at elevated temperatures. The non-aqueous electrolyte cell includes a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode contains, as a positive electrode active material, a lithium transition metal composite oxide represented by the general formula LiCoxAyBzO2 where A denotes at least one selected from the group consisting of Al, Cr, V, Mn and Fe, B denotes at least one selected from the group consisting of Mg and Ca and x, y and z are such that 0.9nullx
摘要翻译:在高温下具有改善的循环特性的非水电解质电池。 非水电解质电池包括正极,负极和非水电解质。 正极含有由通式LiCoxAyBzO2表示的锂过渡金属复合氧化物作为正极活性物质,其中A表示选自Al,Cr,V,Mn和Fe中的至少一种,B表示至少 选自Mg和Ca以及x,y和z中的一种选自0.9 <= x <1,0.001≤y≤0.05和0.001≤z≤0.05。