摘要:
Provided is a positive electrode for a lithium secondary battery including a positive active material and a conductive agent comprising a plurality of plate-structured carbon particles.
摘要:
Disclosed is a lithium secondary battery including a positive electrode comprising a combination of positive active materials. The combination includes a material represented by one or both of Formulae 1 and 2; and a material of Formula 3 as follows: LiaNibMncMdO2 (Formula 1) where 0.90≦a≦1.2; 0.5≦b≦0.9; 0
摘要:
Disclosed is a method of preparing a positive active material for a rechargeable lithium battery including adding first and second compounds to a solvent to prepare an acidic solution with a pH from 0.01 to 3, the first compound including an element that is capable of forming a double bond with an oxygen of a lithium metal oxide, and the second compound including at least one element selected from the group consisting of alkali metals, alkali earth metals, group 13 elements, group 14 elements, transition metals and rare-earth elements; adding a lithium-containing compound to the acidic coating solution to coat the lithium-containing compound; and heat-treating the coated lithium-containing compound to form a surface-treatment layer comprising a compound represented by the formula MXOk where M is an element selected from the group consisting of alkali metals, alkali earth metals, group 13 elements, group 14 elements, transition metals, rare-earth elements and combinations thereof; X is an element that is capable of forming a double bond with oxygen; and k is an integer from 2 to 4.
摘要:
The present invention relates to a positive active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery comprising the same. The positive active material includes a lithium/nickel-based compound wherein primary particles having an average particle diameter ranging from 1 μm to 4 μm are agglomerated to form secondary particles. The positive active material of the present invention has excellent electrochemical performance and outstanding inhibition to swelling at high temperatures.
摘要:
The present invention relates to a method of preparing a positive active material for a rechargeable lithium battery. The positive active material includes a lithium/nickel-based compound wherein primary particles having an average particle diameter ranging from 1 μm to 4 μm are agglomerated to form secondary particles. The positive active material of the present invention has excellent electrochemical performance and outstanding inhibition to swelling at high temperatures.
摘要:
Provided is a positive electrode for a lithium secondary battery including a positive active material and a conductive agent comprising a plurality of plate-structured carbon particles.
摘要:
Disclosed is a lithium secondary battery including a positive electrode comprising a combination of positive active materials. The combination includes a material represented by one or both of Formulae 1 and 2; and a material of Formula 3 as follows: LiaNibMncMdO2 (Formula 1) where 0.90≦a≦1.2; 0.5≦b≦0.9; 0
摘要翻译:公开了一种锂二次电池,其包括正极和正极活性材料的组合。 该组合包括由式1和2中的一个或两个表示的材料; 和式3的材料如下:<?in-line-formula description =“In-line Formulas”end =“lead”?> Li sub> (式1)<?in-line-formula description =“In-line Formulas”end =“tail” 其中0.90 <= a <= 1.2; 0.5 <= b <= 0.9; 0 Li Ni Ni Ni Ni> Mn Mn Mn Mn Mn Mn Mn Mn Mn Mn Mn Mn Mn Mn Mn Mn Mn Mn Mn (式2)<?in-line-formula description =“In-line Formulas”end =“tail” 其中0.90 <= a <= 1.2,0.5 <= b <= 0.9,0 sub> b> 式3)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中0.90 <= a <= 1.2而0 <= b <= 0.2; 式3的每个M独立地选自Mg,Ca,Sr,Ba,Ra,Sc,Y,Ti,Zr,Hf,Rf,V,Nb,Ta,Db,Cr,Mo, W,Sg,Tc,Re,Bh,Fe,Ru,Os,Hs,Rh,Ir,Pd,Pt,Cu,Ag,Au,Zn,Cd,B,Al,Ga,In, Sn,P,As,Sb,Bi,S,Se,Te,Po和组合。
摘要:
Disclosed is a method of preparing a positive active material for a rechargeable lithium battery including adding first and second compounds to a solvent to prepare an acidic solution with a pH from 0.01 to 3, the first compound including an element that is capable of forming a double bond with an oxygen of a lithium metal oxide, and the second compound including at least one element selected from the group consisting of alkali metals, alkali earth metals, group 13 elements, group 14 elements, transition metals and rare-earth elements; adding a lithium-containing compound to the acidic coating solution to coat the lithium-containing compound; and heat-treating the coated lithium-containing compound to form a surface-treatment layer comprising a compound represented by the formula MXOk where M is an element selected from the group consisting of alkali metals, alkali earth metals, group 13 elements, group 14 elements, transition metals, rare-earth elements and combinations thereof; X is an element that is capable of forming a double bond with oxygen; and k is an integer from 2 to 4.
摘要:
A method for preparing a positive active material for a rechargeable lithium battery is provided. In this method, a lithium source, a metal source, and a doping liquid including a doping element are mixed and the mixture is heat-treated.
摘要:
A tubular fuel cell module having improved current collecting efficiency. In one embodiment, the fuel cell module includes: a fuel cell unit; a first current collector extending along an outer side of the fuel cell unit; and a second current collector wound around the first current collector and around the outer side of the fuel cell unit. Here, the outer side of the fuel cell unit is a curved outer side, the first current collector has a curved inner side facing the curved outer side of the fuel cell unit, and the curved inner side of first current collector is shaped to match the curved outer side of the fuel cell unit.