摘要:
It is to provide a cathode active material powder for a positive electrode for a lithium secondary battery, which has a large volume capacity density, high safety and excellent durability for charge and discharge cycles. A cathode active material powder for a lithium secondary battery characterized by comprising a first composite oxide powder represented by the formula (1) LipQxMyOzFa (wherein Q is Co or Mn, M is aluminum or an alkaline earth metal element or a transition metal element other than Q, provided that when Q is Co, 0.9≦p≦1.1, 0.980≦x≦1.000, 0≦y≦0.02, 1.9≦z≦2.1, x+y=1, and 0≦a≦0.02, and when Q is Mn, 1≦p≦1.3, x=2−y, 0≦y≦0.05, z=4, and a=0), having an average particle size D50 of from 5 to 30 μm, and having a compression breaking strength of at least 40 MPa; and a second composite oxide powder represented by the formula (2) LipNixCoyMnzNqOrFa (wherein N is aluminum or an alkaline earth metal element or a transition metal element other than Ni, Co and Mn, 0.9≦p≦1.1, 0.2≦x≦0.8, 0≦y≦0.4, 0≦z≦0.5, 0≦q≦0.05, 1.9≦r≦2.1, x+y+z+q=1, and 0≦a≦0.02), having an average particle size D50 of from 2 to 30 μm, and having a compression breaking strength less than 40 MPa; in a ratio (weight ratio) of the first composite oxide powder/the second composite oxide powder being from 95/5 to 30/70.
摘要翻译:本发明提供一种锂二次电池用正极用正极活性物质粉末,其具有容量密度大,安全性高,充放电循环优异的耐久性。 一种锂二次电池用正极活性物质粉末,其特征在于,含有式(1)表示的第一复合氧化物粉末, (其中Q是Co或Mn,M是铝或碱土金属元素或Q以外的过渡金属元素,条件是当Q 是Co,0.9 <= p <= 1.1,0.980 <= x <= 1.000,0 <= y <= 0.02,1.9 <= z <= 2.1,x + y = 1,0 <= a <= 0.02, 当Q为Mn时,平均粒度D50为5〜30μm,1≤p≤3.3,x = 2-y,0≤y≤0.05,z = 4,a = 0) 并且具有至少40MPa的压缩断裂强度; 和由式(2)表示的第二复合氧化物粉末LiNi x N x Mn x N (其中N为铝或碱土金属元素或Ni之外的过渡金属元素,Co和Mn, 0.9 <= p <= 1.1,0.2 <= x <= 0.8,0 <= y <= 0.4,0 <= z <= 0.5,0 <= q <= 0.05,1.9 <= r = 2.1,x + y + z + q = 1,0 <= a <= 0.02),平均粒径D50为2〜30μm,压缩断裂强度小于40MPa; 第一复合氧化物粉末/第二复合氧化物粉末的比例(重量比)为95/5〜30/70。
摘要:
Coagulated particles of nickel-cobalt-manganese hydroxide wherein primary particles are coagulated to form secondary particles are synthesized by allowing an aqueous solution of a nickel-cobalt-manganese salt, an aqueous solution of an alkali-metal hydroxide, and an ammonium-ion donor to react under specific conditions; and a lithium-nickel-cobalt-manganese-containing composite oxide represented by a general formula, LipNixMn1-x-yCoyO2-qFq (where 0.98≦p≦1.07, 0.3≦x≦0.5, 0.1≦y≦0.38, and 0≦q≦0.05), which is a positive electrode active material for a lithium secondary cell having a wide usable voltage range, a charge-discharge cycle durability, a high capacity and high safety, is obtained by dry-blending coagulated particles of nickel-cobalt-manganese composite oxyhydroxide formed by making an oxidant to act on the coagulated particles with a lithium salt, and firing the mixture in an oxygen-containing atmosphere.
摘要翻译:通过使镍 - 钴 - 锰盐的水溶液,碱金属氢氧化物的水溶液和铵离子给体合成,其中一次粒子凝结形成二次粒子的镍 - 钴 - 氢氧化锰的凝结颗粒合成 在特定条件下反应; 和由以下通式表示的锂镍钴钴锰复合氧化物:Li x Mn x Mn 1-xy Co Co, 其中0.98 <= p <= 1.07,0.3 <= x <= 0.5,0.1 <= y < = 0.38,0 <= q <= 0.05),其是具有宽的可用电压范围,充放电循环耐久性,高容量和高安全性的锂二次电池用正极活性物质 通过使锂化合物通过使氧化剂作用于凝固的颗粒而形成的镍 - 钴 - 锰复合羟基氧化物的混合的混合颗粒,并在含氧气氛中烧结该混合物。
摘要:
Coagulated particles of nickel-cobalt-manganese hydroxide wherein primary particles are coagulated to form secondary particles are synthesized by allowing an aqueous solution of a nickel-cobalt-manganese salt, an aqueous solution of an alkali-metal hydroxide, and an ammonium-ion donor to react under specific conditions; and a lithium-nickel-cobalt-manganese-containing composite oxide represented by a general formula, LipNixMn1-x-yCoyO2-qFq (where 0.98≦p≦1.07, 0.3≦x≦0.5, 0.1≦y≦0.38, and 0≦q≦0.05), which is a positive electrode active material for a lithium secondary cell having a wide usable voltage range, a charge-discharge cycle durability, a high capacity and high safety, is obtained by dry-blending coagulated particles of nickel-cobalt-manganese composite oxyhydroxide formed by making an oxidant to act on the coagulated particles with a lithium salt, and firing the mixture in an oxygen-containing atmosphere.
摘要:
Coagulated particles of nickel-cobalt-manganese hydroxide wherein primary particles are coagulated to form secondary particles are synthesized by allowing an aqueous solution of a nickel-cobalt-manganese salt, an aqueous solution of an alkali-metal hydroxide, and an ammonium-ion donor to react under specific conditions; and a lithium-nickel-cobalt-manganese-containing composite oxide represented by a general formula, LipNixMn1-x-yCoyO2-qFq (where 0.98≦p≦1.07, 0.3≦x≦0.5, 0.1≦y≦0.38, and 0≦q≦0.05), which is a positive electrode active material for a lithium secondary cell having a wide usable voltage range, a charge-discharge cycle durability, a high capacity and high safety, is obtained by dry-blending coagulated particles of nickel-cobalt-manganese composite oxyhydroxide formed by making an oxidant to act on the coagulated particles with a lithium salt, and firing the mixture in an oxygen-containing atmosphere.
摘要翻译:通过使镍 - 钴 - 锰盐的水溶液,碱金属氢氧化物的水溶液和铵离子给体合成,其中一次粒子凝结形成二次粒子的镍 - 钴 - 氢氧化锰的凝结颗粒合成 在特定条件下反应; 和由以下通式表示的锂镍钴钴锰复合氧化物:Li x Mn x Mn 1-xy Co Co, 其中0.98 <= p <= 1.07,0.3 <= x <= 0.5,0.1 <= y < = 0.38,0 <= q <= 0.05),其是具有宽的可用电压范围,充放电循环耐久性,高容量和高安全性的锂二次电池用正极活性物质 通过使锂化合物通过使氧化剂作用于凝固的颗粒而形成的镍 - 钴 - 锰复合羟基氧化物的混合的混合颗粒,并在含氧气氛中焙烧该混合物。
摘要:
To provide a lithium-nickel-cobalt-manganese composite oxide powder for a positive electrode of a lithium secondary battery, which has a large volume capacity density and high safety and is excellent in the charge and discharge cyclic durability. A positive electrode active material powder for a lithium secondary battery characterized by comprising a first granular powder having a compression breaking strength of at least 50 MPa and a second granular powder having a compression breaking strength of less than 40 MPa, formed by agglomeration of many fine particles of a lithium composite oxide represented by the formula LipNixCoyMnzMqO2-aFa (wherein M is a transition metal element other than Ni, Co and Mn, Al or an alkaline earth metal element, 0.9≦p≦1.1, 0.2≦x≦0.8, 0≦y≦0.4, 0≦z≦0.5, y+z>0, 0≦q≦0.05, 1.9≦2−a≦2.1, x+y+z+q=1 and 0≦a≦0.02) to have an average particle size D50 of from 3 to 15 μm, in a weight ratio of the first granular powder/the second granular powder being from 50/50 to 90/10.
摘要翻译:为了提供一种锂二次电池的正极用锂镍钴锰复合氧化物粉末,其具有大容量密度和高安全性,并且充放电循环耐久性优异。 一种锂二次电池用正极活性物质粉末,其特征在于,具有压缩断裂强度为50MPa以上的第一粒状粉末和压缩断裂强度小于40MPa的第二粒状粉末,其特征在于, 由下式表示的锂复合氧化物的颗粒:由下式表示的锂复合氧化物颗粒:Mn x Mn x Mn (其中M是不同于Ni,Co和Mn,Al或碱土金属元素的过渡金属元素,0.9 <= p <= 1.1,0.2 <= x <= 0.8,0 <= y <= 0.4,0 <= z <= 0.5,y + z> 0,0 <= q <= 0.05,1.9 <= 2- a = 1.1,x + y + z + q = 1,0 <= a <= 0.02),平均粒径D50为3〜15μm,第一粒状粉末/ 粉末为50/50至90/10。
摘要:
A lithium-nickel-cobalt-manganese composite oxide powder for a positive electrode of a lithium secondary battery, which has a large volume capacity density and high safety and is excellent in the charge and discharge cyclic durability, is presented. It is a lithium-nickel-cobalt-manganese composite oxide powder for a lithium secondary battery, represented by the formula LipNixCoyMnzMqO2-aFa (wherein M is a transition metal element other than Ni, Co or Mn, or an alkaline earth metal element, 0.9≦p≦1.1, 0.2≦x≦0.5, 0.1≦y≦0.4, 0.2≦z≦0.5, 0≦q≦0.05, 1.9≦2-a≦2.1, x+y+z+q=1, and 0≦a≦0.02). The lithium-nickel-cobalt-manganese composite oxide is an agglomerated granular composite oxide powder having an average particle size D50 of from 3 to 15 μm, formed by agglomeration of many fine particles, and the compression breaking strength of the powder is at least 50 MPa.
摘要翻译:本发明提供一种锂二次电池正极用锂镍钴锰复合氧化物粉末,其具有体积容量密度大,安全性高,充放电循环耐久性优异。 作为锂二次电池用锂镍钴锰复合氧化物粉末,用下式表示:式Li- (其中M是除了Ni之外的过渡金属元素,其中M是除Ni之外的过渡金属元素, Co或Mn或碱土金属元素,0.9 <= p <= 1.1,0.2 <= x <= 0.5,0.1 <= y <= 0.4,0.2 <= z <= 0.5,0 <= q <= 0.05 ,1.9 <= 2-a <= 2.1,x + y + z + q = 1,0 <= a <= 0.02)。 锂镍钴锰复合氧化物是通过许多细颗粒附聚而形成的平均粒径D50为3〜15μm的凝聚颗粒状复合氧化物粉末,粉末的压缩断裂强度为至少50 MPa。
摘要:
Coagulated particles of nickel-cobalt-manganese hydroxide wherein primary particles are coagulated to form secondary particles are synthesized by allowing an aqueous solution of a nickel-cobalt-manganese salt, an aqueous solution of an alkali-metal hydroxide, and an ammonium-ion donor to react under specific conditions; and a lithium-nickel-cobalt-manganese-containing composite oxide represented by a general formula, LipNixMn1-x-yCoyO2-qFq (where 0.98≦p≦1.07, 0.3≦x≦0.5, 0.1≦y≦0.38, and 0≦q≦0.05), which is a positive electrode active material for a lithium secondary cell having a wide usable voltage range, a charge-discharge cycle durability, a high capacity and high safety, is obtained by dry-blending coagulated particles of nickel-cobalt-manganese composite oxyhydroxide formed by making an oxidant to act on the coagulated particles with a lithium salt, and firing the mixture in an oxygen-containing atmosphere.
摘要翻译:通过使镍 - 钴 - 锰盐的水溶液,碱金属氢氧化物的水溶液和铵离子给体合成,其中一次粒子凝结形成二次粒子的镍 - 钴 - 氢氧化锰的凝结颗粒合成 在特定条件下反应; 和由以下通式表示的锂镍钴钴锰复合氧化物:Li x Mn x Mn 1-xy Co Co, 其中0.98 <= p <= 1.07,0.3 <= x <= 0.5,0.1 <= y < = 0.38,0 <= q <= 0.05),其是具有宽的可用电压范围,充放电循环耐久性,高容量和高安全性的锂二次电池用正极活性物质 通过使锂化合物通过使氧化剂作用于凝固的颗粒而形成的镍 - 钴 - 锰复合羟基氧化物的混合的混合颗粒,并在含氧气氛中焙烧该混合物。
摘要:
There is obtained an active material for a lithium secondary battery that has a wide usable voltage range, a high charge-discharge cycle durability, a high capacity and high safety and availability. The particles of a lithium-nickel-cobalt-manganese-fluorine-containing composite oxide having an R-3m rhombohedral structure represented by a general formula LipNixMn1-x-yCoyO2-qFq (where 0.98≦p≦1.07, 0.3≦x≦0.5, 0.1≦y≦0.38, and 0≦q≦0.05), and the particles of the lithium-nickel-cobalt-manganese-fluorine-containing composite oxide characterized in that the half-width of the diffraction peak of a (110) plane whose 2θ is 65±0.5° in the X-ray diffraction using a Cu—Kα line is, 0.12 to 0.25° are used as an active substance for a positive electrode.
摘要:
To provide a lithium-nickel-cobalt-manganese composite oxide powder for a positive electrode of a lithium secondary battery, which has a large volume capacity density and high safety and is excellent in the charge and discharge cyclic durability. A positive electrode active material powder for a lithium secondary battery characterized by comprising a first granular powder having a compression breaking strength of at least 50 MPa and a second granular powder having a compression breaking strength of less than 40 MPa, formed by agglomeration of many fine particles of a lithium composite oxide represented by the formula LipNixCoyMnzMqO2-aFa (wherein M is a transition metal element other than Ni, Co and Mn, Al or an alkaline earth metal element, 0.9≦p≦1.1, 0.2≦x≦0.8, 0≦x≦0.4, 0≦z≦0.5, y+z>0, 0≦q≦0.05, 1.9≦2−a≦2.1, x+y+z+q=1, and 0≦a≦0.02) to have an average particle size D50 of from 3 to 15 μm, in a weight ratio of the first granular powder/the second granular powder being from 50/50 to 90/10.
摘要翻译:为了提供一种锂二次电池的正极用锂镍钴锰复合氧化物粉末,其具有大容量密度和高安全性,并且充放电循环耐久性优异。 一种锂二次电池用正极活性物质粉末,其特征在于,具有压缩断裂强度为50MPa以上的第一粒状粉末和压缩断裂强度小于40MPa的第二粒状粉末,其特征在于, 由下式表示的锂复合氧化物的颗粒:由下式表示的锂复合氧化物颗粒:Mn x Mn x Mn (其中M是不同于Ni,Co和Mn,Al或碱土金属元素的过渡金属元素,0.9 <= p <= 1.1,0.2 <= x <= 0.8,0 <= x <= 0.4,0 <= z <= 0.5,y + z> 0,0 <= q <= 0.05,1.9 <= 2- a = 2.1,x + y + z + q = 1,0 <= a <= 0.02),平均粒径D50为3〜15μm,以第1粒状粉末/ 粒状粉末为50/50至90/10。
摘要:
A lithium/nickel/cobalt/manganese-containing composite oxide powder represented by the formula LipNixCoyMnzMqO2-aFa (wherein M is at least one element selected from the group consisting of Al, Ge, Sn, alkaline earth metal elements and transition metal elements other than Co, Mn and Ni, 0.9≦p≦1.1, 0.2≦x≦0.5, 0.2≦y≦0.5, 0.1≦z≦0.4, 0≦q≦0.5, 1.9≦a≦2.1, p+x+y+z+q=2, and 0≦a≦0.02), characterized in that when the powder is classified into small particle size-classified particles with an average particle size 2 μm≦D50≦8 μm and large particle size-classified particles with an average particle size of 10 μm≦D50≦75 μm, the ratio of (% by weight of the small particle size-classified particles)/(% by weight of the large particle size-classified particles) is from 15/85 to 40/60.