中科微点-全球专利检索

  1. Login
  2. Sign Up
Invention Grant
US08153302B2 Method of producing active material for lithium secondary battery, method of producing electrode for lithium secondary battery, method of producing lithium secondary battery, and method of monitoring quality of active material for lithium secondary battery 有权
锂二次电池用活性物质的制造方法，锂二次电池用电极的制造方法，锂二次电池的制造方法以及锂二次电池的活性物质的监测方法

Method of producing active material for lithium secondary battery, method of producing electrode for lithium secondary battery, method of producing lithium secondary battery, and method of monitoring quality of active material for lithium secondary battery
Abstract:
A method of producing an active material for a lithium secondary battery, by which impurities causing problems in synthesizing an active material for a lithium secondary battery, including a lithium transition metal oxyanion compound are removed efficiently and enhancement of an energy density is realized, is provided. By cleaning the active material for a lithium secondary battery, including a lithium transition metal oxyanion compound, with a pH buffer solution, for example, it is possible to efficiently remove just only impurities such as Li3PO4 or Li2CO3, or a substance, other than LiFePO4, in which the valence of Fe is bivalent such as FeSO4, FeO or Fe3(PO4)2 without dissolving Fe of LiFePO4.
Abstract(Chinese):

提供一种生产用于锂二次电池的活性材料的方法，其中提供了有效地除去包含锂过渡金属氧阴离子化合物的锂二次电池的活性材料合成的问题的杂质并实现能量密度的提高 。 通过例如利用pH缓冲溶液清洗包含锂过渡金属氧阴离子化合物的锂二次电池的活性物质，可以仅仅有效地除去Li 3 PO 4或Li 2 CO 3等杂质，或除了LiFePO 4以外的物质 ，其中铁的价数是二价的，如FeSO 4，FeO或Fe 3（PO 4）2，而不溶解LiFePO 4的Fe。

Public/Granted literature
Information query
Espacenet
Patent Agency Ranking
0/0