ELECTRODE FOR LITHIUM ION SECONDARY CELL, METHOD FOR PREPARING PASTE FOR SAID ELECTRODE AND METHOD FOR MANUFACTURING SAID ELECTRODE

摘要

An electrode for a lithium ion secondary cell includes a conductive auxiliary agent, a binder and an active material. The conductive auxiliary agent includes carbon black and carbon nanofibers. The carbon nanofibers are configured to electrically crosslink the active material and the carbon black so that the carbon nanofibers coat part or all of a surface of the active material to be secured by a binder. In addition, by defining the entire surface of the active material as 100%, 10 to 100% of the surface of the active material is coated with the carbon nanofibers. By bonding the carbon black to the carbon nanofibers with which the surface of the active material is coated, the active material and the carbon black are electrically crosslinked.