Production method for non-aqueous electrolyte secondary battery active material providing lithium insertion and solution contact
摘要
說明書
At this time, in the production method of the negative electrode active material of the present invention, as the solution A containing the lithium, a solution A1 containing lithium and a polycyclic aromatic compound or its derivative or a straight chain polyphenylene compound or its derivative, or a solution A2 containing lithium and an amine (here, the solution A1 and solution A2 contain the ether-based solvent as the solvent) may be used.
When the solvent like this is used as the solution A containing lithium, the Li may be more uniformly inserted in the silicon compound, in addition, the Li may be efficiently inserted.
Further, at this time, in the production method of the negative electrode active material of the present invention, as the solution A containing lithium, it is preferable to use the solution A1.
When the solution A1 is used, the Li may be particularly efficiently inserted. When the solution containing in particular the straight chain polyphenylene compound or its derivative is used as the solution A1, the Li may be inserted particularly efficiently.
