RESISTANCE LAYER FORMATION SUPPRESSION COAT LAYER COVERED POSITIVE ELECTRODE ACTIVE MATERIAL, AND ALL SOLID LITHIUM SECONDARY BATTERY USING IT

摘要

PPROBLEM TO BE SOLVED: To provide a positive electrode active material capable of reducing resistance between a positive electrode active material and a solid electrolyte material when lithium ions moves between the positive electrode active material and the solid electrolyte material, and used for forming an all solid lithium secondary battery restrained in drop of output. PSOLUTION: This invention provides this resistance layer formation suppression coat layer covered positive electrode active material which has a positive electrode active material, and a resistance layer formation suppression coat layer covering a surface of the positive electrode active material, and is characterized in that fine particles of the positive electrode active material are not included in the resistance layer formation suppression coat layer, whereby the above problem is solved. PCOPYRIGHT: (C)2010,JPO&INPIT