Abstract:
PURPOSE: A negative electrode composition for a lithium secondary battery is provided to ensure high discharge capacity, cycle property and charge and discharge efficiency, and low discharge potential for lithium. CONSTITUTION: A method for preparing a negative electrode composition for a non-aqueous lithium secondary battery comprises the steps of: (S61) mixing lithium materials and banadium materials according to Li_aV_bO_2 to form a solution, wherein 0.5
Abstract translation:目的:提供一种用于锂二次电池的负极组合物,以确保高放电容量,循环性能和充放电效率以及锂的放电电位低。 构成:用于制备非水锂二次电池用负极组合物的方法包括以下步骤:(S61)根据Li_aV_bO_2混合锂材料和钡材料以形成溶液,其中0.5 <= a <= 1.5,0.9 <= b <= 1.1; (S64)在900-1100℃通过溶液的喷雾热解形成锂钒金属氧化物的中间体; 和(S69)在800-1050℃下在惰性气氛或还原气氛中热处理中间体。
Abstract:
본 발명은 구형의 수산화코발트를 이용한 비수계 리튬이차전지용 양극재료에 관한 것으로, 액상에서의 침전반응을 이용하여 이종금속이 균일하게 치환되어 있는 구형의 수산화코발트를 제조함으로써 최종 양극재료의 고전압에서의 구조 붕괴를 억제하여 수명특성을 향상시키기 위한 것이다. 본 발명에 따르면, 코발트원료, 수산화기원료, 치환용 이종금속원료 및 아민계원료를 화학식, Co 1-x M x (OH) 2 (0.00
Abstract:
The present invention relates to a positive electrode active material for a lithium secondary battery and a method for manufacturing the same, and more particularly, to a positive electrode active material for a lithium secondary battery in which a positive electrode material in which the surface of a nickel-rich (Ni-rich) positive electrode active material is coated with manganese phosphate is provided for improved battery characteristics, and a method for manufacturing the same. According to the present invention, the surface of the nickel-rich (Ni-rich) positive electrode active material is uniformly coated with the manganese phosphate, and thus an electrolyte side reaction is suppressed. Accordingly, a lithium secondary battery having excellent output characteristics, high-temperature life characteristics, and thermal stability can be manufactured.
Abstract:
The present invention relates to an anode material for a lithium secondary battery, coated with silicon oxide and a method for manufacturing the same. More specifically, by providing an anode material coated with silicon oxide on a Ni-rich anode material, the present invention relates to an anode material for a lithium secondary battery having remarkably enhanced thermal stability and cell performance due to the silicon compound. According to the present invention, silicon oxide is evenly coated on the surface of the Ni-rich anode material, thus enabling a user to manufacture a lithium secondary battery having excellent cycle and output properties while having an effectively improved thermal stability due to the suppressing of a negative reaction of an electrolyte.