| 摘要 |
PURPOSE:To improve conductivity by replacing V of V2O5 which is known as a positive active mass with hexa valent W and to give distortion to a structure to facilitate topochemical reaction and to improve charge-discharge performance by replacing V with W having larger ion diameter than V. CONSTITUTION:A positive active mass is a compound having a composition of (WXV1-X)2O5 (0<X<0.5), and a negative active mass is lithium, and an electrolyte is a material which is chemically stable to the positive active mass and lithium, and allows to move lithium ion in order to electrochemically reacts with the cathode active mass. When (WXV1-X)2O5 (0<X<0.5) compound is used as a positive electrode, the positive electrode is formed in such a way that this compound powder or a mixture of this compound with a binder powder are pressed on a substrate of nickel or copper as a film or carbon powder is mixed to the compound to give conductivity and this mixture is placed in a metal box or the mixture is mixed moreover with a binder solution and the mixture is spreaded to a substrate of nickel or copper and dried to form a film. Lithium of the negative active mass is formed in a sheet and the sheet is pressed to nickel or copper net to form the negative electrode. |
