| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a transfer film for easily providing lithium equivalent to irreversible capacity to an active material, a negative electrode for a secondary battery extracting properties of a high performance active material, and a lithium secondary battery including the negative electrode. <P>SOLUTION: A transfer film 49 includes: a substrate 45; and a release layer 46, an auxiliary layer 47 and a lithium layer 48 which are formed in order on the substrate 45. With the constitution, the lithium layer 48 can be easily separated and transferred from the transfer film 49. A negative electrode 20 for a secondary battery includes an active material layer 21, a lithium layer 48 and an auxiliary layer 47 which are formed in order on a current collector 22, and the lithium layer 48 and the auxiliary layer 47 are formed by being transferred from the transfer film 49 of the present invention. In the negative electrode 20 for a secondary battery of the constitution, the lithium layer 48 can be easily transferred onto the active material layer 21. Accordingly, productivity of the negative electrode is excellent, and irreversible capacity of the active material layer 21 can be easily compensated. <P>COPYRIGHT: (C)2013,JPO&INPIT |
