摘要:
A non-aqueous electrolyte secondary battery is provided with a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte, wherein positive electrode active material is a mixture of lithium-manganese composite oxide having spinel structure represented by a general formula Li1+zMn2O4 (wherein a relationship 0≦z≦0.2 is satisfied) and lithium-transition metal composite oxide represented by the general formula LiNi1−x−yCoxMnyO2 (wherein the relationships 0.5
摘要翻译:非水电解质二次电池具有正极,负极,夹在正极和负极之间的隔膜和非水电解质,其中正极活性物质是锂锰复合物的混合物 具有由通式Li 1 + z 2 O 2 O 4 S 4表示的尖晶石结构的氧化物(其中关系0 <= z <= 0.2是 满足)和由通式LiNi 1-xy N x Mn x O 2 O 2表示的锂 - 过渡金属复合氧化物, SUB>(其中满足0.5
摘要:
A battery including an electrode unit housed in a battery can and which generates electricity which can be taken out of the battery via a pair of negative and positive electrode terminals, wherein a terminal assembly is installed in the battery, a current collector plate is connected to an edge of an electrode of the electrode unit for connecting the electrode unit to the terminal assembly, and one or more than one connecting piece which is protrusively formed on a surface of the current collector plate is welded and secured to a base portion of the terminal assembly.
摘要:
A battery including an electrode unit which is an electricity generating element housed in a battery can, in which the electricity can be taken out of the can via a pair of negative and positive electrode terminals which are exposed outside the can, and one of the negative and positive electrode terminals has a coating layer formed on a surface thereof that is the same material as the material of which the other of the negative and positive electrode terminals is made.
摘要:
Good cycle performance and high discharge power characteristics are obtained with a non-aqueous secondary cell including a positive electrode containing as a positive electrode active material a mixture of a lithium-manganese composite oxide and a lithium-transition metal composite oxide containing at least Ni and Mn, and a negative electrode having as a negative electrode active material a material capable of intercalating and deintercalating lithium. Discharge of the non-aqueous secondary cell is controlled so that the end-of-discharge voltage of the non-aqueous secondary cell becomes equal to or higher than 2 V and lower than 3 V.
摘要:
A nonaqueous electrolyte secondary cell includes a rolled-up electrode unit composed of a positive electrode, a negative electrode and a separator interposed therebetween, and a negative electrode current collector plate and a positive electrode current collector plate joined to the respective ends of the electrode unit. The negative electrode collector plate is joined to an edge of the negative electrode projecting at one of the opposite ends of the electrode unit. The collector plate has a two-layer structure of a copper layer made of copper or an alloy consisting predominantly of copper, and a metal layer made of a metal not forming an intermetallic compound with lithium and having a lower laser beam reflectivity than copper or an alloy consisting predominantly of the metal. The collector plate has its copper layer contacted with the edge of the negative electrode and welded thereto with a laser beam.
摘要:
A lithium rechargeable battery having a superior battery performance in which manganese, being cheap and occurring in abundance, is used as an element of the positive electrode active material. The lithium rechargeable battery includes a negative electrode and a positive electrode, the negative electrode being made of a material capable or absorbing and releasing lithium, and the positive electrode being made of a lithium-containing metal oxide capable of absorbing and releasing lithium. The lithium-containing metal oxide is represented by a compositional formula LixMN1−y−zNiyFezO2, where 1≦x≦1.3, 0.05≦y
摘要翻译:作为正极活性物质的元素,使用廉价且大量发生的锰的电池性能优异的锂可充电电池。 锂可充电电池包括负极和正极,负极由能够或吸收和释放锂的材料制成,正极由能够吸收和释放锂的含锂金属氧化物制成。 含锂金属氧化物由组成式LixMN1-y-zNiyFezO2表示,其中1 <= x <= 1.3,0.05 <= y <0.9,0.05 <= z <0.9,0.1 <= y + z <= 0.9 。
摘要:
Used as the positive electrode active substance of a lithium ion secondary cell is a mixture of a lithium-nickel-cobalt-manganese composite oxide represented by the formula LiNi(1−x−y)COxMnyO2 wherein 0.5
摘要:
For use in lithium secondary cells, a positive electrode terminal 51 and a negative electrode terminal 81 are given an enhanced mechanical strength to improve the reliability of electrical connection between the cell and an external circuit, while the formation of oxide film on these terminals is inhibited to suppress the discharge voltage drop of the cell. To give these advantages to the lithium secondary cell embodying the invention, the positive electrode terminal 51 is formed from an aluminum alloy containing magnesium and silicon in a combined amount of at least 1.0 wt. % as additive elements, and the negative electrode terminal 81 is formed by plating a substrate of oxygen-free copper with nickel.
摘要:
A nonaqueous electrolyte secondary cell comprises a rolled-up electrode unit 2 composed of a positive electrode 23, a negative electrode 21 and a separator 22 interposed therebetween, and a negative electrode current collector plate 3 and a positive electrode current collector plate 30 joined to the respective ends of the electrode unit 2. The negative electrode collector plate 3 is joined to an edge of the negative electrode 21 projecting at one of the opposite ends of the electrode unit 2. The collector plate 3 has a two-layer structure comprising a copper layer 31 made of copper or an alloy consisting predominantly of copper, and a metal layer made of a metal not forming an intermetallic compound with lithium and having a lower laser beam reflectivity than copper or an alloy consisting predominantly of the metal. The collector plate 3 has its copper layer 31 contacted with the edge of the negative electrode 21 and welded thereto with a laser beam. This improves the weldability of the collector plate 3 to the rolled-up electrode unit 2 to achieve a high current collecting efficiency.
摘要:
A nonaqueous electrolyte secondary cell includes a rolled-up electrode unit composed of a positive electrode, a negative electrode and a separator interposed therebetween, and a negative electrode current collector plate and a positive electrode current collector plate joined to the respective ends of the electrode unit. The collector plate has a two-layer structure comprising a copper layer made of copper or an alloy consisting predominantly of copper, and a metal layer made of a metal not forming an intermetallic compound with lithium and having a lower laser beam reflectivity than copper or an alloy consisting predominantly of the metal. The collector plate has its copper layer contacted with an edge of the negative electrode projecting at one of the opposite ends of the electrode unit and welded thereto with a laser beam.