发明公开
EP1109239A1 NONAQUEOUS ELECTROLYTE SECONDARY CELL 审中-公开
非水电解质二次电池

NONAQUEOUS ELECTROLYTE SECONDARY CELL
摘要:
A non-aqueous electrolyte secondary battery using composite particles for its negative electrode. In the composite particles , nucleus particles including at least one element selected from tin, silicon, and zinc as their constituent element are entirely or partly covered with a solid solution or inter-metallic compound of said constituent element and at least one element selected from groups consisting of Group 2 elements, transition elements, and Group 12, Group 13, and Group 14 elements in the Periodic Table except for the constituent element of the nucleus particles and carbon. Further, the present invention is characterized in that the NMR signals of the lithium intercalated in the composite particles appear within the range of -10 to 40 ppm with respect to lithium chloride and at least one signal appears within the range of -10 to 4 ppm .
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