Abstract:
The present invention relates to a cathode active material for a non-aqueous lithium secondary battery surface-treated with solid superacid and a method for producing same. The method for producing a cathode active material for a non-aqueous lithium secondary battery surface-treated with solid superacid according to the present invention includes a preparation step for preparing a lithium transition metal oxide containing at least one transition metal among nickel (Ni), manganese (Mn), and cobalt (Co); and a coating step for forming a coating layer with solid superacid on a surface of the lithium transition metal oxide. The lithium secondary battery using the cathode active material that is produced by the production method of the present invention has improved electrochemical characteristics at a high voltage and at a high temperature, improved safety, and improved chemical resistance in an electrolyte.
Abstract:
The present invention relates to a positive electrode for magnesium rechargeable batteries and magnesium rechargeable batteries comprising the same and more specifically, to a positive electrode for magnesium rechargeable batteries and magnesium rechargeable batteries comprising the same which uses polytetrafluoroethylene as a binder, and which uses an excessive amount of conductive material for the masses of both poles, so as to possess a high capacity and a long lifespan.
Abstract:
The present invention provides a cathode active material for a magnesium secondary battery and a manufacturing method thereof, wherein the cathode active material is represented by a chemical formula (Mg_xMn_1-yCo_ySiO_4 (0.5
Abstract translation:设置在本发明之间涉及的锂二次电池和制造方法,本发明是的情况下,并且包括一个锂复合金属类阳极电极部被布置在壳体内有一定的距离,其中,所述多个电极部 电解质层由隔板和设置至少pongye材料的混合电解质的一部分,以及形成在阳极包括由副反应形成的涂膜,对应于所设置pongye材料,在该阳极是锂[的NiMn] O 本发明还提供锂二次电池及其制造方法。
Abstract:
본 발명은 마그네슘 이차전지용 집전체의 제조 방법, 이에 의하여 제조된 마그네슘 이차전지 및 이를 포함하는 마그네슘 이차전지에 관한 것이다. 본 발명에 의한 마그네슘 이차전지용 집전체의 제조 방법은 집전체의 표면의 조도 변화로 인해 집전체의 비표면적을 증가시키고, 이로 인해 양극 활물질과 집전체층 사이의 접촉 면적을 증가시킴으로써 본 발명에 의하여 제조된 마그네슘 이차전지용 집전체를 포함하는 마그네슘 이차전지의 전기 저항을 저하시키고, 율별 및 출력 특성 등의 전기화학적 특성을 향상시킨다.
Abstract:
The present invention relates to an anode active material, a non-aqueous lithium secondary battery having the same and a method for producing the same in order to improve high temperature storage properties and low temperature properties and to secure long life span without deterioration in charging and discharging efficiency and high yield properties by modifying the surface of carbon-based material without using electrolyte additives to enhance surface reactivity and structural stability when applying the anode active material to the non-aqueous lithium secondary battery. According to the present invention, the anode active material includes carbon-based materials and a coating layer of phosphorus (P) or boron (B) formed on the surface of the carbon-based materials. The coating layer has compounds of phosphorus (P) or said boron (B) by treating phosphoric acid (H3PO4) or boric acid (H3BO3). [Reference numerals] (AA) Start; (BB) End; (S10) Prepare carbon-based materials; (S20) Produce phosphoric acid (H3PO4) or boric acid (H3BO3) solution; (S30) Mix the carbon-based materials in the solution; (S40) Dry the carbon-based materials mixed in solution; (S50) Form a coating layer containing phosphorus (P) or boron on surface of the carbon-based materials by heat-treating the dried carbon-based materials
Abstract translation:本发明涉及一种阳极活性物质,具有该阳极活性物质的非水锂二次电池及其制造方法,以提高高温保存性能和低温性能,并确保长寿命而不会使充电劣化 通过改变碳基材料的表面而不使用电解质添加剂来提高表面反应性和将阳极活性材料应用于非水性锂二次电池时的结构稳定性,可以提高排出效率和高收率性能。 根据本发明,阳极活性物质包括碳基材料和形成在碳基材料表面上的磷(P)或硼(B)的涂层。 通过处理磷酸(H 3 PO 4)或硼酸(H 3 BO 3),涂层具有磷(P)或所述硼(B)的化合物。 (附图标记)(AA)开始; (BB)结束; (S10)准备碳基材料; (S20)生产磷酸(H 3 PO 4)或硼酸(H 3 BO 3)溶液; (S30)将碳基材料混合在溶液中; (S40)干燥混合在溶液中的碳基材料; (S50)通过对干燥的碳基材料进行热处理,在碳基材料的表面上形成含有磷(P)或硼的涂层