摘要:
A high-input and high-output battery having a large capacity while guaranteeing safety is provided. As a composition of an electrolytic solution, a composition ratio of ethylene carbonate (EC) is 20 vol % or more and 30 vol % or less, and a composition ratio of dimethyl carbonate (DMC) is 36 vol % or more and 50 vol % or less, and a composition ratio η (DMC/EMC) of dimethyl carbonate (DMC) and ethyl methyl carbonate (EMC) is 1.05≦η≦1.7. Furthermore, a composition ratio of an additive is 0.1 wt. % or more and 1.0 wt. % or less, and a concentration of lithium salt is 1.0 mol/L or more and 1.5 mol/L or less.
摘要:
A high-input and high-output battery having a large capacity while guaranteeing safety is provided. In a lithium ion battery having an electrode wound group in which a positive electrode, a negative electrode, and a separator are wound and an electrolytic solution provided in a battery container, a discharge capacity of the battery being 30 Ah or more, the positive electrode has a current collector and a positive electrode composite applied to both surfaces of the current collector, and the positive electrode composite has following configuration. The positive electrode composite contains a mixed active material of layered lithium nickel manganese cobalt composite oxide (NMC) and spinel lithium manganese oxide (sp-Mn), a density of the positive electrode composite is 2.4 g/cm3 or more and 2.7 g/cm3 or less, and an application quantity of the positive electrode composite is 175 g/m2 or more and 250 g/m2 or less.
摘要翻译:提供了具有大容量的高输入和高输出电池,同时保证了安全性。 在其中缠绕有正极,负极和隔膜的电极卷绕组的锂离子电池和设置在电池容器中的电解液,电池的放电容量为30Ah以上,正极 具有应用于集电体的两面的集电体和正极复合体,正极复合体具有以下构造。 正极复合体含有层状锂镍锰钴复合氧化物(NMC)和尖晶石锂锰氧化物(sp-Mn)的混合活性物质,正极复合体的密度为2.4g / cm 3以上2.7g / cm 3 以下,正极复合体的涂布量为175g / m 2以上且250g / m 2以下。
摘要:
In a lithium ion battery provided with a cleavage valve that discharges gas in accordance with an internal pressure rise, and a discharge capacity X of the battery being 30 Ah or more and less than 100 Ah, a positive electrode composite contains a mixed active material of layered lithium nickel manganese cobalt composite oxide (NMC) and spinel lithium manganese oxide (sp-Mn). A density of the positive electrode composite is 2.4 to 2.7 g/cm3, an application quantity of the positive electrode composite is 175 to 250 g/cm2, and when a weight ratio (NMC/sp-Mn) is defined as Y, a relation of Y
摘要翻译:在设置有根据内部压力升高排出气体并且电池的放电容量X为30Ah以上且小于100Ah的分解阀的锂离子电池中,正极复合体含有 层状锂镍锰复合氧化物(NMC)和尖晶石锂锰氧化物(sp-Mn)。 正极复合体的密度为2.4〜2.7g / cm 3,正极复合体的涂布量为175〜250g / cm 2,当重量比(NMC / sp-Mn)为Y时, 的Y <-0.0062X + 1.05。 此外,当X大于40Ah和80Ah以下时,当排出能力X为30Ah以上且40Ah以下时,分割阀的工作压力为1.0〜5.0MPa。
摘要:
A high-input and high-output battery having a large capacity while guaranteeing safety is provided. In a lithium ion battery having an electrode wound group in which a positive electrode, a negative electrode, and a separator are wound and an electrolytic solution provided in a battery container, a discharge capacity of the battery being 30 Ah or more, the positive electrode has a current collector and a positive electrode composite applied to both surfaces of the current collector, and the positive electrode composite has following configuration. The positive electrode composite contains a mixed active material of layered lithium nickel manganese cobalt composite oxide (NMC) and spinel lithium manganese oxide (sp-Mn), a density of the positive electrode composite is 2.4 g/cm3 or more and 2.7 g/cm3 or less, and a porosity of the active electrode composite is 29.5% or more and 40.0% or less. Furthermore, a weight ratio (NMC/sp-Mn) of the mixed active materials is set to 10/90 or more and 60/40 or less.
摘要翻译:提供了具有大容量的高输入和高输出电池,同时保证了安全性。 在其中缠绕有正极,负极和隔膜的电极卷绕组的锂离子电池和设置在电池容器中的电解液,电池的放电容量为30Ah以上,正极 具有应用于集电体的两面的集电体和正极复合体,正极复合体具有以下构造。 正极复合体含有层状锂镍锰钴复合氧化物(NMC)和尖晶石锂锰氧化物(sp-Mn)的混合活性物质,正极复合体的密度为2.4g / cm 3以上2.7g / cm 3 以下,活性电极复合体的孔隙率为29.5%以上且40.0%以下。 此外,混合活性物质的重量比(NMC / sp-Mn)设定为10/90以上且60/40以下。
摘要:
A high-input and high-output battery having a large capacity while guaranteeing safety is provided. In a lithium ion battery having an electrode wound group in which a positive electrode, a negative electrode, and a separator are wound and an electrolytic solution provided in a battery container, a discharge capacity of the battery being 30 Ah or more, the positive electrode has a current collector and a positive electrode composite applied to both surfaces of the current collector, and the positive electrode composite has following configuration. The positive electrode composite contains a mixed active material of layered lithium nickel manganese cobalt composite oxide (NMC) and spinel lithium manganese oxide (sp-Mn), a density of the positive electrode composite is 2.4 g/cm3 or more and 2.7 g/cm3 or less, and a porosity of the active electrode composite is 29.5% or more and 40.0% or less. Furthermore, a weight ratio (NMC/sp-Mn) of the mixed active materials is set to 10/90 or more and 60/40 or less.
摘要翻译:提供了具有大容量的高输入和高输出电池,同时保证了安全性。 在其中缠绕有正极,负极和隔膜的电极卷绕组的锂离子电池和设置在电池容器中的电解液,电池的放电容量为30Ah以上,正极 具有应用于集电体的两面的集电体和正极复合体,正极复合体具有以下构造。 正极复合体含有层状锂镍锰钴复合氧化物(NMC)和尖晶石锂锰氧化物(sp-Mn)的混合活性物质,正极复合体的密度为2.4g / cm 3以上2.7g / cm 3 以下,活性电极复合体的孔隙率为29.5%以上且40.0%以下。 此外,混合活性物质的重量比(NMC / sp-Mn)设定为10/90以上且60/40以下。
摘要:
Disclosed are an electrode for a lithium secondary battery which includes a metal substrate and a plated layer arranged on the metal substrate and bearing active material particles and resin particles embedded therein, in which a part of the active material particles and the resin particles has a protruding portion beyond the plated layer; and a lithium secondary battery using the electrode. The electrode helps the lithium secondary battery to be resistant to deterioration and property degradation at high temperature and allows the battery to have high input-output performance and to be suitable typically for hybrid electric vehicles.
摘要:
This invention provides electrochemical devices that facilitate formation of an electric double layer, i.e., a reaction field at the electrode interface, for the purpose of reducing interface resistance. Such electrochemical devices each independently have a positive electrode and a negative electrode, wherein the positive electrode and the negative electrode are each in contact with a polymer, and wherein the Lewis acid properties of a polymer that is in contact with the positive electrode are different from those of a polymer that is in contact with the negative electrode.
摘要:
An electrolyte with excellent ionic conductivity, and a lithium secondary battery utilizing the electrolyte for increased level of safety. The lithium secondary battery comprises a positive and a negative electrode that reversibly intercalate and deintercalate lithium, and an electrolyte containing a lithium ion. The electrolyte comprises: a polymer having a carbonate group represented by formula 1 below: where R1 is a hydrocarbon group with a carbon number of 2 to 7, and n is an integer from 10 to 10000; an electrolyte salt; and an organic solvent. The electrolyte salt is contained with a molar ratio of 0.2 or more with respect to the carbonate group, thereby providing the battery with an excellent ionic conductivity and high levels of safety.
摘要:
A lithium-ion rechargeable battery module having a plurality of lithium-ion battery cells, arranged that battery cells located at an high temperature portion of the module are electrically connected in parallel with battery cells located at a low temperature portion of the module. The battery cells at the high temperature portion have a higher electric resistance at 20° C. and a better high-temperature storage characteristic at 50° C. than those of the battery cells located at the low temperature portion.
摘要:
A lithium secondary battery is intended to suppress deterioration upon storage at high temperature of 50° C. or higher without deteriorating the output characteristics at a room temperature. The battery includes a positive electrode capable of occluding and releasing lithium ions, a negative electrode capable of occluding and releasing lithium ions, a separator disposed between the positive electrode and the negative electrode, and an electrolyte. The electrolyte contains a compound having a double bond in the molecule and a compound having a plurality of polymerizable functional groups in the molecule, and the electrolyte contains a compound represented by formula (4): (in which Z1 and Z2 each represent any one of an allyl group, a methallyl group, a vinyl group, an acryl group, and a methacryl group).