09-01-2014 дата публикации
Номер: US20140011086A1
Принадлежит:
Lithium-iron molecular precursor compounds, compositions and processes for making a cathode for lithium ion batteries. The molecular precursor compounds are soluble and provide processes to make stoichiometric cathode materials with solution-based processes. The cathode material can be, for example, a lithium iron oxide, a lithium iron phosphate, or a lithium iron silicate. Cathodes can be made as bulk material in a solid form or in solution, or in various forms including thin films. 2. The molecular precursor compound of claim 1 ,{'sub': 2', '2, 'wherein the alkoxy groups are selected from methoxy, ethoxy, n-propoxy, 1-methylethoxy, butoxy, 1-methylpropoxy, 2-methylpropoxy or 1,1-dimethylethoxy, pentoxy, 1-methylbutoxy, 2-methylbutoxy, 3-methylbutoxy, 1,1-dimethylpropoxy, 1,2-dimethylpropoxy, 2,2-dimethylpropoxy, 1-ethylpropoxy, hexoxy, 1-methylpentoxy, 2-methylpentoxy, 3-methylpentoxy, 4-methylpentoxy, 1,1-dimethylbutoxy, 1,2-dimethylbutoxy, 1,3-dimethylbutoxy, 2,2-dimethylbutoxy, 2,3-dimethylbutoxy, 3,3-dimethylbutoxy, 1-ethylbutoxy, 2-ethylbutoxy, 1,1,2-trimethylpropoxy, 1,2,2-trimethylpropoxy, 1-ethyl-1-methylpropoxy or 1-ethyl-2-methylpropoxy, heptyloxy, octyloxy, 2-ethylhexyloxy, nonyloxy, decyloxy, aminoalkoxy —ORNRwhere R is alkyl, alkoxyalkoxy-OROR where R is alkyl, phosphatoalkoxy-ORPRwhere R is alkyl, and positional isomers and combinations thereof;'}{'sup': 2', '2, 'sub': 2', 'q, 'wherein the dialkoxy groups are —ORO— groups, wherein Rmay be a substituted or unsubstituted, branched or unbranched alkylene chain —(CH)—, where q is from 1 to 20;'}{'sup': 1', '1', '2', '1', '2', '2', '1', '2, 'sub': 3', '2', '2', '3, 'wherein the siloxy groups are selected from OSi(OR), —OSi(OR)R, OSi(OR)R, and —OSiR, wherein Rand Rare independently, for each occurrence, selected from alkyl, aryl, heteroaryl, alkenyl, silyl, and positional isomers and combinations thereof; and'}{'sup': 1', '1', '2', '2', '1', '2, 'sub': 2', '2, 'wherein the phosphate groups are OP(O)(OR), ...
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