Patent ID: 8192868

Claim:
A lithium ion battery before pre-doping comprising: a negative electrode member before initial charge, supporting a negative active material before initial charge; a positive electrode member supporting a positive active material; an electrolyte body; and a battery case internally housing the negative electrode member before being subjected to initial charge, the positive electrode member, and the electrolyte body, wherein the lithium ion battery before pre-doping comprises a lithium ion supply body made of a lithium compound capable of releasing lithium ions when negative voltage is applied to the negative electrode member before initial charge and positive voltage is applied to the lithium ion supply body while the negative active material before initial charge and the lithium ion supply body are respectively in contact with the electrolyte body, the battery case includes a metal case member made of metal, the metal case member including an inner exposed surface exposed inside the battery case and an outer exposed surface exposed outside the battery case, the lithium ion supply body is placed in contact with at least part of the inner exposed surface of the metal case member, the negative electrode member before initial charge and the metal case member are electrically insulated from each other except via an electrical connection through the electrolyte body, and the lithium ion supply body and the negative active material before initial charge are respectively in contact with the electrolyte body.