公开(公告)号：US06379644B2

公开(公告)日：2002-04-30

申请号：US09410072

申请日：1999-10-01

申请人： Naoto Torata ,  Takehito Mitate ,  Toyoshi Iida ,  Tetsushi Makino ,  Shigeyuki Hamano ,  Tomohiko Inada

发明人： Naoto Torata ,  Takehito Mitate ,  Toyoshi Iida ,  Tetsushi Makino ,  Shigeyuki Hamano ,  Tomohiko Inada

IPC分类号： C01G4900

CPC分类号： C01G53/42 ,  C01P2002/54 ,  C01P2002/88 ,  C01P2006/40

摘要： A process for producing a positive electrode active material for a nonaqueous secondary battery comprising the steps of: dissolving, in an alcohol as a medium, a starting material which contains metals necessary for giving a compound represented by the formula LiNi1−xMxO2, wherein 0≦X

摘要翻译： 一种非水系二次电池用正极活性物质的制造方法，其特征在于，在作为介质的醇中溶解含有由式LiNi 1-x M x O 2表示的化合物所需的金属的原料， = X <0.5，M为选自过渡金属和3B-，4B-和5B-族元素中的至少一种金属作为正极活性物质，其可溶于醇; 向所得溶液中加入足够量的草酸以产生微溶于醇的沉淀物：从溶液中分离出微溶的沉淀物：煅烧沉淀物以获得正极活性物质。

公开(公告)号：US5985488A

公开(公告)日：1999-11-16

申请号：US823536

申请日：1997-03-25

申请人： Takehito Mitate ,  Naoto Torata ,  Tetsuya Yoneda ,  Kazuaki Minato ,  Toyoshi Iida ,  Tetsushi Makino ,  Shigeyuki Hamano ,  Naoyoshi Kameda ,  Tomohiko Inada

发明人： Takehito Mitate ,  Naoto Torata ,  Tetsuya Yoneda ,  Kazuaki Minato ,  Toyoshi Iida ,  Tetsushi Makino ,  Shigeyuki Hamano ,  Naoyoshi Kameda ,  Tomohiko Inada

IPC分类号： C01G53/00 ,  H01M4/48 ,  H01M4/485 ,  H01M4/52 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/36 ,  C01G49/00

CPC分类号： H01M10/0525 ,  C01G51/42 ,  C01G53/42 ,  H01M4/485 ,  H01M4/52 ,  H01M4/525 ,  C01P2002/54 ,  C01P2006/40

摘要： A process for preparing lithium nickeloxide (LiNiO.sub.2) for use as a positive electrode active material for a nonaqueous secondary battery, which comprises the steps of: (a) using as the raw materials a lithium compound and a nickel compound at least one of which has a melting point not higher than 300.degree. C.; i) in case where both of the lithium compound and the nickel compound have a melting point not higher than 300.degree. C., mixing the above two compounds after their melting, or mixing the above compounds, melting the mixture and mixing the melted mixture; ii) in case where either one of the lithium compound and the nickel compound has a melting point higher than 300.degree. C., mixing said one having a melting point higher than 300.degree. C. with the remaining one before or after its melting; (b)calcining the resulting mixture at a temperature of 700.degree. C. to 950.degree. C. in air or in an atmosphere containing oxygen in a higher concentration than an atmospheric oxygen concentration.

摘要翻译： 一种制备用作非水二次电池用正极活性物质的锂镍氧化物（LiNiO 2）的方法，其包括以下步骤：（a）使用锂化合物和镍化合物作为原料，其中至少一种具有 熔点不高于300℃。 i）在锂化合物和镍化合物的熔点不高于300℃的情况下，熔融后混合上述两种化合物，或混合上述化合物，熔化混合物并混合熔融的混合物; ii）在锂化合物和镍化合物中的任一种具有高于300℃的熔点的情况下，将熔点高于300℃的所述熔融物与熔融之前或之后的剩余物料混合; （b）在空气或含氧浓度大于大气氧浓度的氧的气氛中，在700〜950℃的温度下煅烧得到的混合物。