摘要:
A non-aqueous electrolyte battery comprises a negative electrode comprising a current collector, and a negative electrode layer formed on one or both surfaces of the current collector, a positive electrode, and a separator interposed between the negative electrode and the positive electrode. The negative electrode layer comprises a plurality of layers laminated each other and containing a different active material each other, the layers comprising a first layer which is contacted with the current collector and contains spinel-type lithium titanate as an active material, and a second layer which is disposed to face the separator and contains Ramsdellite-type lithium titanate or anatase-type titanium oxide as an active material.
摘要:
According to one embodiment, it is provided with a positive electrode active material for a non-aqueous electrolyte secondary battery represented by a general formula Li(LiaMnbNicCodFee)O2-xFx, wherein a, b, c, d, e and x in the general formula are values such that 0
摘要:
According to one embodiment, a negative electrode active material for nonaqueous electrolyte battery includes a titanium oxide compound having a crystal structure of monoclinic titanium dioxide. When a monoclinic titanium dioxide is used as the active material, the effective capacity is significantly lower than the theoretical capacity though the theoretical capacity was about 330 mAh/g. The invention comprises a titanium oxide compound which has a crystal structure of monoclinic titanium dioxide and a (001) plane spacing of 6.22 Å or more in the powder X-ray diffraction method using a Cu-Kα radiation source, thereby making an attempt to improve effective capacity.
摘要:
A nonaqueous electrolyte battery, containing a case and provided in the case, a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode comprises a lithium-titanium composite oxide, wherein a crystallite diameter of the lithium-titanium composite oxide is not larger than 6.9×102 Å. The lithium-titanium composite oxide comprises: rutile TiO2; anatase TiO2; Li2TiO3; and a lithium titanate having a spinel structure. A main peak intensity relative to lithium titanate set at 100, as determined by X-ray diffractometry, of each of lithium titanate having a spinel structure, the rutile TiO2, the anatase TiO2 and Li2TiO3 is not larger than 7.
摘要:
A nonaqueous electrolyte battery includes a negative electrode including a current collector and a negative electrode active material having a Li ion insertion potential not lower than 0.4V (vs. Li/Li+). The negative electrode has a porous structure. A pore diameter distribution of the negative electrode as determined by a mercury porosimetry, which includes a first peak having a mode diameter of 0.01 to 0.2 μm, and a second peak having a mode diameter of 0.003 to 0.02 μm. A volume of pores having a diameter of 0.01 to 0.2 μm as determined by the mercury porosimetry is 0.05 to 0.5 mL per gram of the negative electrode excluding the weight of the current collector. A volume of pores having a diameter of 0.003 to 0.02 μm as determined by the mercury porosimetry is 0.0001 to 0.02 mL per gram of the negative electrode excluding the weight of the current collector.
摘要翻译:非水电解质电池包括具有集电体的负极和Li离子插入电位不低于0.4V(相对于Li / Li +)的负极活性物质。 负极具有多孔结构。 通过水银孔率法测定的负极的孔径分布,其包括模式直径为0.01〜0.2μm的第一峰值和模式直径为0.003〜0.02μm的第二峰值。 通过水银孔率法测定的直径为0.01〜0.2μm的孔的体积,除了集电体的重量以外,为每克负极0.05〜0.5mL。 通过水银孔率法测定的直径为0.003〜0.02μm的孔的体积为除了集电体重量以外的每1g负极为0.0001〜0.02mL。
摘要:
A protection device for an assembled battery includes a sampling unit which individually samples voltages of batteries of the assembled battery to generate sampled voltages, a holding unit which holds the sampled voltages to generate a plurality of holding voltages, a multiplexer which sequentially reads the holding voltages and outputs each voltage to a common output node, a measuring unit configured to measure the individual voltages and the state of charges of the batteries based on a voltage of the node in a measuring period within a constant measuring cycle, and a control unit configured to turn on/off the sample switches at the same time within the measuring period and repeatedly turn on/off at least one sample switch selected from the plurality of sample switches in accordance with the state of charge in a term other than the measuring period.
摘要:
A nonaqueous electrolyte battery includes a negative electrode including a current collector and a negative electrode active material having a Li ion insertion potential not lower than 0.4V (vs. Li/Li+). The negative electrode has a porous structure. A pore diameter distribution of the negative electrode as determined by a mercury porosimetry, which includes a first peak having a mode diameter of 0.01 to 0.2 μm, and a second peak having a mode diameter of 0.003 to 0.02 μm. A volume of pores having a diameter of 0.01 to 0.2 μm as determined by the mercury porosimetry is 0.05 to 0.5 mL per gram of the negative electrode excluding the weight of the current collector. A volume of pores having a diameter of 0.003 to 0.02 μm as determined by the mercury porosimetry is 0.0001 to 0.02 mL per gram of the negative electrode excluding the weight of the current collector.
摘要:
A nonaqueous electrolyte battery includes a negative electrode including a current collector and a negative electrode active material having a Li ion insertion potential not lower than 0.4V (vs. Li/Li+). The negative electrode has a porous structure. A pore diameter distribution of the negative electrode as determined by a mercury porosimetry, which includes a first peak having a mode diameter of 0.01 to 0.2 μm, and a second peak having a mode diameter of 0.003 to 0.02 μm. A volume of pores having a diameter of 0.01 to 0.2 μm as determined by the mercury porosimetry is 0.05 to 0.5 mL per gram of the negative electrode excluding the weight of the current collector. A volume of pores having a diameter of 0.003 to 0.02 μm as determined by the mercury porosimetry is 0.0001 to 0.02 mL per gram of the negative electrode excluding the weight of the current collector.
摘要翻译:非水电解质电池包括具有集电体的负极和Li离子插入电位不低于0.4V(相对于Li / Li +)的负极活性物质。 负极具有多孔结构。 通过水银孔率法测定的负极的孔径分布,其包括模式直径为0.01〜0.2μm的第一峰值和模式直径为0.003〜0.02μm的第二峰值。 通过水银孔率法测定的直径为0.01〜0.2μm的孔的体积,除了集电体的重量以外,为每克负极0.05〜0.5mL。 通过水银孔率法测定的直径为0.003〜0.02μm的孔的体积为除了集电体重量以外的每1g负极为0.0001〜0.02mL。
摘要:
A nonaqueous electrolyte secondary battery includes a case, a nonaqueous electrolyte provided in the case, a positive electrode provided in the case, and a negative electrode provided in the case, the negative electrode comprising a negative electrode current collector and a negative electrode layer that is carried on the negative electrode current collector and contains negative electrode active material particles, and the negative electrode current collector comprising an aluminum foil having an average crystal grain size of 50 μm or less or an aluminum alloy foil having an average crystal grain size of 50 μm or less.
摘要:
A nonaqueous electrolyte battery includes a negative electrode including a current collector and a negative electrode active material having a Li ion insertion potential not lower than 0.4V (vs. Li/Li+). The negative electrode has a porous structure. A pore diameter distribution of the negative electrode as determined by a mercury porosimetry, which includes a first peak having a mode diameter of 0.01 to 0.2 μm, and a second peak having a mode diameter of 0.003 to 0.02 μm. A volume of pores having a diameter of 0.01 to 0.2 μm as determined by the mercury porosimetry is 0.05 to 0.5 mL per gram of the negative electrode excluding the weight of the current collector. A volume of pores having a diameter of 0.003 to 0.02 μm as determined by the mercury porosimetry is 0.0001 to 0.02 mL per gram of the negative electrode excluding the weight of the current collector.
摘要翻译:非水电解质电池包括具有集电体的负极和Li离子插入电位不低于0.4V(相对于Li / Li +)的负极活性物质。 负极具有多孔结构。 通过水银孔率法测定的负极的孔径分布,其包括模式直径为0.01〜0.2μm的第一峰和模式直径为0.003〜0.02μm的第二峰。 通过水银孔隙率法测定的直径为0.01〜0.2μm的孔的体积,除了集电体的重量以外,每克负极为0.05〜0.5mL。 通过水银孔率法测定的直径为0.003〜0.02μm的孔体积为除了集电体重量以外的每1g负极为0.0001〜0.02mL。