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    ADDITIVE FOR POSITIVE ELECTRODE OF LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
    1.
    发明公开
    ADDITIVE FOR POSITIVE ELECTRODE OF LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME 审中-公开

    公开(公告)号：EP4191711A1

    公开(公告)日：2023-06-07

    申请号：EP21898496.1

    申请日：2021-11-18

    申请人： LG Energy Solution, Ltd.

    发明人： JUNG, Hae Jung ,  LEE, Boram ,  YOO, Tae Gu ,  JUNG, Wang Mo ,  PARK, Byungchun

    IPC分类号： H01M4/62 ,  C01G53/00 ,  C01B25/30 ,  H01M10/052 ,  C01F7/04 ,  C01B35/12 ,  H01M4/02

    摘要： Provided is an additive for a positive electrode of a lithium secondary battery, the additive including a lithium transition metal oxide, Li 3 PO 4 , Li 5 AlO 4 and Li 3 BO 3 . The lithium transition metal oxide has an aluminum-doped form. The additive including Li 3 PO 4 , Li 5 AlO 4 and Li 3 BO 3 together with the lithium transition metal oxide has functionality of improving stability of a battery when used in a positive electrode of a lithium secondary battery. Specifically, a general lithium transition metal oxide causes a side reaction with an electrolyte liquid when used in a positive electrode of a lithium secondary battery causing a problem of decreasing stability such as generating gas in the battery, however, the Li 3 PO 4 , the Li 5 AlO 4 and the Li 3 BO 3 are evenly mixed with the lithium transition metal oxide or some thereof form a partial coating layer, or a portion of aluminum is doped to the lithium transition metal oxide to suppress the lithium transition metal oxide from causing a side reaction with an electrolyte liquid.

    METHOD AND EQUIPMENT FOR THE RECYCLING OF ALKALINE WASTES FROM ALUMINUM EXTRUSION INDUSTRIES FOR THE PRODUCTION OF USEFUL COAGULANTS
    3.
    发明公开
    METHOD AND EQUIPMENT FOR THE RECYCLING OF ALKALINE WASTES FROM ALUMINUM EXTRUSION INDUSTRIES FOR THE PRODUCTION OF USEFUL COAGULANTS 审中-公开

    公开(公告)号：EP3564187A3

    公开(公告)日：2020-07-29

    申请号：EP19386022.8

    申请日：2019-04-03

    申请人： Dailianis, Nikolaos

    发明人： Dailianis, Nikolaos

    IPC分类号： C01F7/04 ,  C22B21/00 ,  C23F1/46

    摘要： A comprehensive recycling method, economically optimized, simple to implement and with the simplest equipment. The alkaline wastes produced by Aluminum extrusion industries (coming from the alkaline washing of Aluminum dies, alkaline surface treatment of Aluminum, etc.), produced in any concentration are collected and stored, as well as the Alumina containing sludge (in the form of Aluminum hydroxide) that was formed at various stages of collection and processing as, also, the resulting Alumina sludge coming from Alumina- Soda recovery plants. Then, the solutions, in decreasing order of preference I) are mixed to appropriate concentrations of Al and NaOH, II) are reacted in open (atmospheric pressure) heated tanks with calculated amounts of Alumina sludge, III) are reacted in open (atmospheric pressure) tanks with calculated amounts of Aluminum metal scrap, of the same or other plants, and turns after clarification, filtration and packaging, in to all possible concentrations of sodium aluminate solution products for use as a suitable alkaline coagulant for acidic and hypo-acidic waste waters and as a concrete coagulation accelerator. The method is economically optimized and does not produce byproducts or wastes.