摘要:
A battery capable of improving the energy density and improving the battery characteristics such as cycle characteristics and high temperature storage characteristics is provided. A cathode and an anode are oppositely arranged with a separator in between. The open circuit voltage in full charge is in the range from 4.25 V to 6.00 V. The separator has a base material layer and a surface layer. The surface layer opposed to the cathode is formed from at least one from the group consisting of polyvinylidene fluoride, polytetrafluoroethylene, polypropylene, and aramid.
摘要:
A battery capable of improving the energy density and improving the cycle characteristics is provided. The battery includes a spirally wound electrode body, in which a cathode and an anode are wound with a separator and an electrolyte in between. The open circuit voltage in full charge is in the range from 4.25 V to 6.00 V. The electrolyte contains an electrolytic solution and a polymer containing vinylidene fluoride as a component. The polymer containing vinylidene fluoride as a component has high oxidation stability. Therefore, even when the battery voltage is raised, oxidation and decomposition of the electrolyte and the separator can be inhibited.
摘要:
A battery capable of improving the energy density and improving the cycle characteristics is provided. The battery includes a cathode, an anode arranged opposite of the cathode and an electrolyte in between the cathode and the anode. The amount of cathode active material and the amount of anode active material is such that the open circuit battery voltage is within the range from 4.25 volts to 6.00 volts, the electrolyte contains an electrolytic solution and a polymer containing vinylidene fluoride, and the cathode contains lithium complex oxides.
摘要:
A cathode active material capable of increasing a capacity and improving high temperature characteristics or cycle characteristics, a method of manufacturing it, a cathode using the cathode active material, and a battery using the cathode active material are provided. In a cathode active material contained in a cathode, a coating layer is provided on at least part of a complex oxide particle containing at least lithium (Li) and cobalt (Co). The coating layer is an oxide which contains lithium (Li) and at least one of nickel (Ni) and manganese (Mn).
摘要:
A positive active material including a compound expressed by a general formula LimMxM′yM″zO2 (here, M designates at least one kind of element selected from Co, Ni and Mn, M′ designates at least one kind of element selected from Al, Cr, V, Fe, Cu, Zn, Sn, Ti, Mg, Sr, B, Ga, In, Si and Ge, and M″ designates at least one kind of element selected from Mg, Ca, B and Ga. Further, x is designated by an expression of 0.9≦x
摘要:
A cathode active material having a large capacity and improved charge/discharge cycle characteristics is disclosed. A battery has a cathode (2) having a cathode active material, an anode (3) and a non-aqueous electrolyte, and uses a cathode active material composed of a mixture of a first lithium-transition metal composite oxide containing Ni and Co and comprising a layer structure and a second lithium-transition metal composite oxide containing Ni and Mn and comprising a layer structure.
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 active material has: a composite oxide particle containing at least lithium and one or a plurality of transition metals; and a coating layer provided on at least a part of the composite oxide particle. The coating layer contains at least one kind of element M differing from a main transition metal element A forming the composite oxide particle and selected from Groups 2 to 16 of the periodic table and a halogen element X. In the coating layer, the element M and the halogen element X exhibit different distribution states.
摘要:
A cathode active material includes: (a) first oxide including (1) lithium (Li), nickel (Ni) and manganese, (2) a first element MI selected from Group 2 to Group 14 elements, and (3) oxygen; (b) a second oxide including (1) lithium, (2) a second element MII including nickel and cobalt, (3) manganese, (4) a third element including at least one of the elements of Group 2 to Group 14 elements, except for nickel, cobalt and manganese, and (5) oxygen.
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。