Abstract: The present invention relates to charging and discharging methods of a lithium ion battery with a high capacity retention rate, which comprise the following steps: (1) when a number of turns is n, the negative and positive electrodes of the lithium ion battery are only charged; after the charging is finished, a third electrode and a fourth electrode are discharged with controlled current, wherein the controlled current is 0.

Abstract: Disclosed are a lithium metal negative electrode, a preparation method therefor, and a lithium battery using the negative electrode. The preparation method for the lithium metal negative electrode is as follows: selecting a lithium salt and an organic solvent and mixing same to formulate an electrolyte, and uniformly mixing the electrolyte and a thickener at a ratio to obtain a viscous liquid A, then adding a lithium powder with a volume equivalent diameter of 1-30 ?m to the viscous liquid A at a ratio, stirring and mixing same until uniform to obtain a pasty lithium paste, and uniformly applying the lithium paste on a current collector to obtain the lithium metal negative electrode.

Abstract: A solid-liquid battery comprises a positive electrode and a negative electrode, the negative electrode is made of metal lithium, a solid electrolyte is provided between the positive electrode and the negative electrode, an ester electrolyte solution is filled between the solid electrolyte and the positive electrode, and an ether electrolyte solution is filled between the solid electrolyte and the negative electrode.

Abstract: The invention relates to a lithium ion battery with a high capacity retention rate, and a preparation method and charging and discharging methods thereof. The lithium ion battery comprises a positive electrode plate, a negative electrode plate, separators arranged between the positive electrode plate and the negative electrode plate at intervals, and an electrolyte, and further comprises a third electrode and a fourth electrode, which are independent of each other and provided between the positive electrode plate and the negative electrode plate, wherein the third electrode and the fourth electrode are separated by means of a single-layer separator, a metal lithium electrode being used as the third electrode, and an activated carbon electrode being used as the fourth electrode.

Abstract: The present invention belongs to the technical field of solid-state lithium batteries, and particularly discloses a hybrid solid-liquid electrolyte lithium battery. The lithium battery includes a positive electrode plate, a negative electrode plate and a composite solid electrolyte sheet arranged between the positive electrode plate and the negative electrode plate, wherein the composite solid electrolyte sheet includes a solid electrolyte core layer and buffer adhesive layers arranged on both sides of the solid electrolyte core layer, wherein the solid electrolyte core layer is mainly formed by mixing a core layer inorganic solid electrolyte, an electrolyte polymer and an electrolyte additive, and the buffer adhesive layer mainly formed by mixing a buffer adhesive layer inorganic solid electrolyte, a buffer adhesive layer lithium salt and a buffer adhesive layer additive.

Abstract: Provided is an all-solid-state lithium rechargeable cell, comprising: a) a cathode, wherein the cathode comprises: a1) a composite of VS4 and graphene; and a2) a solid catholyte; and b) a lithium-based anode. In particular, the all-solid-state lithium rechargeable cell of the present disclosure may exhibit high initial discharge capacities, high initial Coulombic efficiencies, good reversible capacities, excellent cycling stabilities, high energy densities as well as outstanding safeties.

Abstract: Provided is an all-solid-state lithium rechargeable cell, comprising: a) a cathode, wherein the cathode comprises: a1) a composite of VS4 and graphene; and a2) a solid catholyte; and b) a lithium-based anode.

Abstract: An Object of the invention is to obtain an all solid lithium battery having an excellent output performance. To achieve the object, a sulfide based solid electrolyte is used as an electrolyte; an oxide containing lithium, a metal element that acts as a redox couple, and a metal element that forms an electron-insulating oxide is used as a cathode active material; and the concentration of the metal element that forms the electron-insulating oxide on the surface of the cathode active material (oxide) that is in contact with the sulfide solid electrolyte is made high.

Abstract: An Object of the invention is to obtain an all solid lithium battery having an excellent output performance. To achieve the object, a sulfide based solid electrolyte is used as an electrolyte; an oxide containing lithium, a metal element that acts as a redox couple, and a metal element that forms an electron-insulating oxide is used as a cathode active material; and the concentration of the metal element that forms the electron-insulating oxide on the surface of the cathode active material (oxide) that is in contact with the sulfide solid electrolyte is made high.