Abstract:
본 발명은 리튬 이차 전지 및 그의 제조 방법에 관한 것으로, 이러한 본 발명은 케이스와, 상기 케이스 내측에 일정 간격을 가지는 배치되며 리튬 복합금속계 양극을 포함하는 전극부와, 상기 다수의 전극부들 사이에 배치되는 분리막과 설폰계 물질의 적어도 일부가 혼합된 전해액으로 구성된 전해질층, 및 상기 양극 상에 형성되며 설폰계 물질에 대응한 부반응에 의하여 형성된 피막을 포함하며, 상기 양극은 Li 2 [Ni 0.6~0.9 Co 0.2~0.05 Mn 0.2~0.05 ]O 2 인 것을 특징으로 하는 리튬 이차 전지 및 이의 제조 방법을 제공한다.
Abstract:
The present invention relates to a precursor to manufacture a rich positive electrode material of lithium, and a rich positive active material of lithium manufactured thereby. More specifically, the present invention relates to a new precursor to manufacture rich positive electrode active material of lithium whose capacity and lifetime are remarkably improved by improving an existing problem of rich positive active material of lithium, and the present invention relates to a rich positive active material of lithium manufactured thereby.
Abstract:
The present invention relates to a precursor for manufacturing a lithium-rich positive electrode material and a lithium-rich positive electrode material manufactured thereby. More specifically, the present invention relates to a new precursor for manufacturing a lithium-rich positive electrode material and a lithium-rich positive electrode material manufactured thereby, whose capacity and life service are significantly improved by resolving existing problems of the lithium-rich positive electrode material with replacing AI and A which are dissimilar metals.
Abstract:
The present invention relates to a cathode material for a non-aqueous lithium secondary battery using spherical porous cobalt oxide and a manufacturing method thereof. The lifetime characteristics of the final cathode material can be improved by inhibiting the structural collapse of the final cathode material at a high voltage because the spherical porous cobalt oxide including nanosized titanium dioxide uniformly is manufactured using a sedimentation reaction in a liquid state. According to the present invention, the spherical cobalt oxide in a size of 5 to 25 μm can be manufactured by the sedimentation of a cobalt material, a hydroxyl group material, a dissimilar metal material for substitution and an ammonia material so as to have a composition ratio of Co1-xTix(OH)2 (0.00
Abstract:
PURPOSE: A positive electrode material has high sphericity, has extremely low specific surface area, and prevents side-reactions with electrolyte solution at high temperatures. CONSTITUTION: A positive electrode material includes spherical cobalt hydroxide which is manufactured by coprecipitating an aqueous solution mixed of a cobalt raw material, a hydroxide raw material, a heterometal raw material for substitution, and amine raw material. The cobalt hydroxide has a composition ratio represented by Co_(1-x)M_x(OH)_2 where x is 0.00
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。