2 results about "Aluminum Ion" patented technology

Belonging to the technical field of batteries, the invention relates to a non-aqueous solution aluminum ion secondary battery and a preparation method thereof. The secondary battery can be widely applied in electronics, communication, electric vehicle and other fields. The aluminum ion battery provided by the invention contains a battery anode, a battery cathode, a diaphragm and an aluminum-containing non-aqueous solution electrolyte. Specifically, the cathode active material can be carbon, graphite, carbon nanotube, graphene, super carbon, WS2 and MoS2, V2O5, TiO2 and other materials having nano-layered, tubular, linear and other structures, and the anode is aluminum-containing metal or alloy. The non-aqueous solution aluminum ion secondary battery provided by the invention has the characteristics of high specific capacity, high coulomb efficiency, long service life and environmental protection, safety and reliability, stable cycle performance, and quick charging, etc.

The invention discloses a preparation method of battery cathode material lithium nickel cobalt aluminum oxide precursor and relates to the technical field of batteries. The preparation method comprises the steps of (1) preparing nickel-cobalt solution; (2) preparing precipitate; (3) purifying the precipitate; (4) preparing a premix; (5) roasting an end product. The lithium nickel cobalt aluminum oxide precursor is prepared by means of aluminum nitrate roasting; the difficulty in forming large particulate precipitate due to high precipitating speed of trivalent aluminum ions is avoided; the lithium nickel cobalt aluminum oxide precursor that is roasted has high true density. In addition, roasting allows fewer acid radicals to be left in the precipitate, and the purity of the lithium nickelcobalt aluminum oxide precursor is further improved accordingly.