摘要:
A lithium secondary battery includes a positive electrode, a negative electrode, and an electrolyte solution. The positive electrode contains a positive electrode active material including element M2 incorporated in a crystal structure in a surface layer area of a complex oxide, the oxide including the element M1 and being represented by the following formula (1), M2 being different from M1. The element M2 is at least one kind selected from the group consisting of magnesium Mg, calcium Ca, titanium Ti, zirconium Zr, sulfur S, fluorine F, iron Fe, copper Cu, boron B, aluminum Al, phosphorus P, carbon C, manganese Mn, nickel Ni, and cobalt Co. Li1+a(MnbCocNi1−b−c)1−aM1dO2−e (1) M1 is at least one kind of aluminum, magnesium, zirconium, titanium, barium Ba, boron, silicon Si, and iron, a satisfies 0
摘要:
A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode contains a lithium composite oxide. The negative electrode contains a material including at least one of silicon Si and tin Sn as a constituent element. The lithium composite oxide includes lithium Li having a composition ratio a, a first element having a composition ratio b, and a second element having a composition ratio c as a constituent element. The first element including two kinds or more selected from among manganese Mn, nickel Ni, and cobalt Co, and including at least manganese. The second element including at least one kind selected from among aluminum Al, titanium Ti, magnesium Mg, and boron B. The composition ratios a to c satisfy the relationships of 1.1 b+c.
摘要翻译:锂离子二次电池包括正极,负极和电解液。 正极含有锂复合氧化物。 负极含有作为构成元素的包含硅Si和锡Sn中的至少一种的材料。 锂复合氧化物包括具有组成比a的锂Li,具有组成比b的第一元素和组成比c作为组成元素的第二元素。 第一元素包括选自锰锰,镍镍和钴Co中的两种或更多种,并且至少包含锰。 第二元素包括选自铝Al,钛Ti,镁Mg和硼B中的至少一种。组成比a至c满足1.1 b + c。
摘要:
A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode contains a lithium composite oxide. The negative electrode contains a material including at least one of silicon Si and tin Sn as a constituent element. The lithium composite oxide includes lithium Li having a composition ratio a, a first element having a composition ratio b, and a second element having a composition ratio c as a constituent element. The first element including two kinds or more selected from among manganese Mn, nickel Ni, and cobalt Co, and including at least manganese. The second element including at least one kind selected from among aluminum Al, titanium Ti, magnesium Mg, and boron B. The composition ratios a to c satisfy the relationships of 1.1 b+c.
摘要翻译:锂离子二次电池包括正极,负极和电解液。 正极含有锂复合氧化物。 负极含有作为构成元素的包含硅Si和锡Sn中的至少一种的材料。 锂复合氧化物包括具有组成比a的锂Li,具有组成比b的第一元素和组成比c作为组成元素的第二元素。 第一元素包括选自锰锰,镍镍和钴Co中的两种或更多种,并且至少包含锰。 第二元素包括选自铝Al,钛Ti,镁Mg和硼B中的至少一种。组成比a至c满足1.1 b + c。
摘要:
A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution, wherein the positive electrode includes a first lithium composite oxide and a second lithium composite oxide expressed by the following equation (1), as a positive electrode active material, and a charge capacity (vs lithium metal) per unit volume during a charge and discharge of a first cycle is larger in the second lithium composite oxide compared to the first lithium composite oxide, and a discharge voltage (vs lithium metal) during the charge and discharge of the first cycle is lower in the second lithium composite oxide compared to the first lithium composite oxide, Li1+a(MnbCocNi1-b-c)1-aO2 . . . (1), where a, b, and c satisfy relationships of 0
摘要:
A lithium secondary battery includes a positive electrode, a negative electrode, and an electrolyte solution. The positive electrode contains a positive electrode active material including element M2 incorporated in a crystal structure in a surface layer area of a complex oxide, the oxide including the element M1 and being represented by the following formula (1), M2 being different from M1. The element M2 is at least one kind selected from the group consisting of magnesium Mg, calcium Ca, titanium Ti, zirconium Zr, sulfur S, fluorine F, iron Fe, copper Cu, boron B, aluminum Al, phosphorus P, carbon C, manganese Mn, nickel Ni, and cobalt Co. Li1+a(MnbCocNi1−b−c)1−aM1dO2−e (1) M1 is at least one kind of aluminum, magnesium, zirconium, titanium, barium Ba, boron, silicon Si, and iron, a satisfies 0
摘要:
Disclosed herein is a positive electrode active material prepared by mixing a lithium-containing compound, a compound containing a transition metal to be put into a solid solution, and a compound containing a metallic element M2 different from the transition metal, and firing the mixture to form composite oxide particles, depositing a compound containing at least one element selected from among sulfur (S), phosphorus (P) and fluorine (F) on surfaces of the particles, and firing the particles, whereby each of the particles is provided with a concentration gradient such that the concentration of the metallic element M2 increases from the center toward the surface of the particle, and at least one element selected from among (S), (P) and (F) is made present in the form of being aggregated at the surfaces of the composite oxide particles.
摘要:
Disclosed herein is a positive electrode active material prepared by mixing a lithium-containing compound, a compound containing a transition metal to be put into a solid solution, and a compound containing a metallic element M2 different from the transition metal, and firing the mixture to form composite oxide particles, depositing a compound containing at least one element selected from among sulfur (S), phosphorus (P) and fluorine (F) on surfaces of the particles, and firing the particles, whereby each of the particles is provided with a concentration gradient such that the concentration of the metallic element M2 increases from the center toward the surface of the particle, and at least one element selected from among (S), (P) and (F) is made present in the form of being aggregated at the surfaces of the composite oxide particles.
摘要:
A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode (21) includes a cathode active material including a lithium complex oxide including Li and at least one kind selected from the group consisting of Co, Ni and Mn, and P and at least one kind selected from the group consisting of Ni, Co, Mn, Fe, Al, Mg and Zn as coating elements on a surface of the lithium complex oxide. Preferably, the contents of the coating elements are higher on the surface of the cathode active material than those in the interior thereof, and decrease from the surface to the interior.
摘要:
A cathode capable of improving battery characteristics such as continuous charge characteristics and high temperature storage characteristics and a battery using it are provided. An active material layer has a multilayer structure, in which a first layer containing a first active material and a second layer containing a second active material are layered. As the first active material, LiNiO2 or the like is preferable, and as a second active material, LiFePO4 or the like having heat stability higher than of the first active material is preferable. Thereby, heat stability can be improved without lowered capacity, and lowered capacity due to oxidation of a separator or the like can be inhibited.
摘要翻译:提供一种能够改善诸如连续充电特性和高温存储特性的电池特性的阴极和使用它的电池。 活性物质层具有多层结构,其中层叠含有第一活性物质的第一层和含有第二活性物质的第二层。 作为第一活性物质,优选LiNiO 2 N 2等,作为第二活性物质,具有比第一活性物质高的热稳定性的LiFePO 4等 优选。 因此,可以在不降低容量的情况下提高热稳定性,并且可以抑制由隔板等的氧化引起的容量降低。
摘要:
A lithium ion secondary battery capable of improving the lithium ion input-output characteristics. An active material capable of storing and releasing lithium ions is a Li complex oxide or a Li complex oxoacid salt. A plurality of primary particles have a particle size distribution with 1 nm