摘要:
Provided is a method for preparing a positive electrode active material for a lithium secondary battery, the method comprising: mixing and reacting a nickel source, a cobalt source, and an aluminum source, ammonia water, sucrose, and a pH adjusting agent to prepare a mixed solution; drying and oxidizing the mixed solution to prepare a positive electrode active material precursor; and adding a lithium source to the positive electrode active material precursor and firing them to prepare a positive electrode active material for a lithium secondary battery.
摘要:
Provided is a method for preparing a positive electrode active material for a lithium secondary battery, the method comprising: mixing and reacting a nickel source, a cobalt source, and an aluminum source, ammonia water, sucrose, and a pH adjusting agent to prepare a mixed solution; drying and oxidizing the mixed solution to prepare a positive electrode active material precursor; and adding a lithium source to the positive electrode active material precursor and firing them to prepare a positive electrode active material for a lithium secondary battery.
摘要:
The present invention relates to a positive electrode active material for a lithium secondary battery having improved thermal stability, a method for producing the positive electrode active material, and a lithium secondary battery containing the same. The positive electrode active material may be represented by the following Chemical Formula 1 and contain particles having an average particle size of 200 nm to 1 μm, wherein the surfaces of the particles are coated with a uniform carbon coating layer. LiaMn1-xMxPO4 [Chemical Formula 1] (Where, M is any one or a mixture of two or more selected from Mg, Fe, Co, Cr, Ti, Ni, Cu, Zn, Zr, Nb, and Mo, and a and x satisfy the following Equations: 0.9≦a≦1.1 and 0≦x
摘要翻译:本发明涉及具有改善的热稳定性的锂二次电池用正极活性物质,正极活性物质的制造方法和含有该正极活性物质的锂二次电池。 正极活性物质可以由以下化学式1表示,并且含有平均粒径为200nm〜1μm的颗粒,其中颗粒的表面涂覆均匀的碳涂层。 LiaMn1-xMxPO4 [化学式1](其中,M是选自Mg,Fe,Co,Cr,Ti,Ni,Cu,Zn,Zr,Nb和Mo中的任一种或两种以上的混合物,以及a和 x满足以下等式:0.9&nlE; a&nlE; 1.1和0&nlE; x <0.5。
摘要:
The present invention relates to a cooling structure of a lithium ion secondary battery system. The cooling structure of a lithium ion secondary battery system according to the present invention provides cooling channels for lithium battery unit cells accommodated by a laterally partitioned arrangement of main frames, each having a heat radiation part and lattice-shaped paths, and partitioning frames, and allows air, blown by a cooling fan, to cool the lithium battery unit cells while passing through the cooling channels and the lattice-shaped paths. Each of the main frames has a pair of passage slots formed in both sides thereof to allow the air blown by the cooling fan to be directly blown to each accommodated lithium battery unit cell, thus forming each secondary cooling channel communicating with the pair of passage slots.
摘要:
The present invention relates to a cooling structure of a lithium ion secondary battery system. The cooling structure of a lithium ion secondary battery system according to the present invention provides cooling channels for lithium battery unit cells accommodated by a laterally partitioned arrangement of main frames, each having a heat radiation part and lattice-shaped paths, and partitioning frames, and allows air, blown by a cooling fan, to cool the lithium battery unit cells while passing through the cooling channels and the lattice-shaped paths. Each of the main frames has a pair of passage slots formed in both sides thereof to allow the air blown by the cooling fan to be directly blown to each accommodated lithium battery unit cell, thus forming each secondary cooling channel communicating with the pair of passage slots.
摘要:
The present invention relates to a positive electrode active material for a lithium secondary battery having improved thermal stability, a method for producing the positive electrode active material, and a lithium secondary battery containing the same. The positive electrode active material may be represented by the following Chemical Formula 1 and contain particles having an average particle size of 200 nm to 1 μm, wherein the surfaces of the particles are coated with a uniform carbon coating layer. LiaMn1-xMxPO4 [Chemical Formula 1] (Where, M is any one or a mixture of two or more selected from Mg, Fe, Co, Cr, Ti, Ni, Cu, Zn, Zr, Nb, and Mo, and a and x satisfy the following Equations: 0.9≦a≦1.1 and 0≦x
摘要翻译:本发明涉及具有改善的热稳定性的锂二次电池用正极活性物质,正极活性物质的制造方法和含有该正极活性物质的锂二次电池。 正极活性物质可以由以下化学式1表示,并且含有平均粒径为200nm〜1μm的颗粒,其中颗粒的表面涂覆均匀的碳涂层。 LiaMn1-xMxPO4 [化学式1](其中,M是选自Mg,Fe,Co,Cr,Ti,Ni,Cu,Zn,Zr,Nb和Mo中的任一种或两种以上的混合物,以及a和 x满足以下等式:0.9 @ a @ 1.1和0 @ x <0.5。
摘要:
Provided is a high-capacity positive electrode active material, and more particularly, a high-capacity positive electrode active material for a lithium secondary battery containing a composite oxide of the following Chemical Formula 1. LixNiyFezMnwO2 [Chemical Formula 1] (Where, x, y, and z satisfy the following Equations, respectively: 1≦x≦1.8, 0
摘要翻译:本发明提供一种高容量正极活性物质,更具体地说,涉及含有以下化学式1的复合氧化物的锂二次电池用高容量正极活性物质.LixNiyFezMnwO2 [化学式1](式中,x, y和z分别满足以下等式:1 @ x @ 1.8,0
摘要:
Disclosed is a safety apparatus for responding to a battery short-circuit, and more particularly a safety apparatus for use in the event of a short-circuited of a high power battery, in which a PTC function is integrated into a tab of a high power battery. The safety apparatus for responding to a short-circuit of a high power battery comprises a casing, a battery part including a first electrode plate, a separator, and a second electrode plate arranged in that order and disposed inside the casing, a first tab connected to one of four edges of the first electrode plate via a first tab welding part and protruding from the casing, and a second tab connected to one of four edges of the second electrode plate via a second tab welding part and protruding from the casing, wherein a portion of the first tab ruptures when the first tab and the second tab are short-circuited, thus preventing the first electrode plate and the second electrode plate from being short-circuited.