摘要:
According to one embodiment, an active material for batteries includes monoclinic β-type titanium composite oxide containing at least one element selected from the group consisting of V, Nb, Ta, Al, Ga, and In, the at least one element being contained in an amount of 0.03 wt % or more and 3 wt % or less.
摘要:
A power supply system includes a first battery module and a second battery module. The first battery module comprises a first nonaqueous electrolyte battery comprising a negative electrode containing a carbonaceous material. The second battery module comprises a second nonaqueous electrolyte battery comprising a negative electrode and a positive electrode. The negative electrode contains a negative electrode active material that has a lithium ion absorbing potential of 0.4V (vs.Li/Li+) or more and an average particle diameter of 1 μm or less. The positive electrode contains lithium metallic oxide represented by LixCoyM1-yO2. The second battery module is chargeable in a range of 20 to 80% of charging depth so that a charging current density (A/kg) of the second nonaqueous electrolyte battery becomes higher that that of the first nonaqueous electrolyte battery.
摘要翻译:电源系统包括第一电池模块和第二电池模块。 第一电池模块包括第一非水电解质电池,其包含含有碳质材料的负电极。 第二电池模块包括第二非水电解质电池,其包括负电极和正电极。 负极含有负极活性物质,其锂离子吸收电位为0.4V(相对于L i / L i S S UP + +)以上,平均粒径为1μm以下。 正极含有由Li x Si y O 1-y O 2 O 2表示的锂金属氧化物。 第二电池模块可以在充电深度的20至80%的范围内充电,使得第二非水电解质电池的充电电流密度(A / kg)变得高于第一非水电解质电池的充电电流密度(A / kg)。
摘要:
A battery module system includes a battery module and a control member. The battery module comprises battery units are connected in series. Each of the battery units comprises a unit cell having a voltage variation rate A (mV/% SOC) at a full charge voltage VH1 (V) is larger than 20 (mV/% SOC), which is a value obtained when the unit cell is charged at a current of 1 C at 25° C. The control member controls current to a current I1 until a maximum value Vmax (V) among the voltage of each unit cell reaches the full charge voltage VH1 (V) and then controls a voltage of the battery module to a voltage V2 (V) given by the following equation (1): V2=VH2×n (1)
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:
According to one embodiment, an active material includes a monoclinic system β-type titanium composite oxide. The monoclinic system β-type titanium composite oxide includes a first element including at least one of Mo and W and satisfies the following formula (1): B>A (1) In the formula, A is an intensity of a peak which is derived from (110) plane of the monoclinic system β-type titanium composite oxide in a wide-angle X-ray diffraction pattern. B is an intensity of a peak which is derived from (002) plane of the monoclinic system β-type titanium composite oxide in the wide-angle X-ray diffraction pattern.
摘要:
According to one embodiment, a non-aqueous electrolyte secondary battery includes a positive electrode which inserts and extracts lithium, a negative electrode containing a negative electrode material including a porous conductive particle and an active material formed on the surface and/or within the pores of the porous conductive particle and composed of a lithium titanium complex oxide having at least one structure selected from the group consisting of nanotubes and nanowires, the lithium titanium complex oxide being expressed by a general formula LixTiO2 (where 0≦x
摘要翻译:根据一个实施方案,非水电解质二次电池包括插入和提取锂的正极,含有包含多孔导电颗粒的负极材料的负极和形成在表面上和/或孔内的活性材料 所述多孔导电粒子由具有选自由纳米管和纳米线组成的组中的至少一种结构的锂钛复合氧化物构成,所述锂钛复合氧化物由通式LixTiO 2(其中0&lt; 1lE; x <1)表示, 非水电解质。
摘要:
According to one embodiment, a negative electrode active material for a nonaqueous electrolyte battery is provided. The active material includes a titanium oxide compound having a crystal structure of a monoclinic titanium dioxide and having a crystallite, the crystallite having a crystallite size of 5 to 25 nm when it is calculated by using the half width of the peak of a (110) plane obtained by a powder X-ray diffraction (XRD) method using a Cu—Kα ray.
摘要:
According to one embodiment, a nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode includes a compound, which is represented by LiFe1−xMnxSO4F wherein 0≦x≦0.2, and has at least one kind of crystal structure selected from tavoraite and triplite. The negative electrode includes a titanium-containing oxide.
摘要:
According to one embodiment, an active material includes a monoclinic system β-type titanium composite oxide. The monoclinic system β-type titanium composite oxide includes a first element including at least one of Mo and W and satisfies the following formula (1): B>A (1) In the formula, A is an intensity of a peak which is derived from (110) plane of the monoclinic system β-type titanium composite oxide in a wide-angle X-ray diffraction pattern. B is an intensity of a peak which is derived from (002) plane of the monoclinic system β-type titanium composite oxide in the wide-angle X-ray diffraction pattern.
摘要:
According to one embodiment, there is provided an active material including a titanium oxide compound having a monoclinic titanium dioxide crystal structure and satisfying the equation (I). S1/(S2+S3)≦1.9 (I). In the above equation, S1 is the peak area of a peak existing in a wavelength range from 1430 cm−1 to 1460 cm−1, S2 is the peak area of a peak existing in a wavelength range from 1470 cm−1 to 1500 cm−1, and S3 is the peak area of a peak existing in a wavelength range from 1520 cm−1 to 1560 cm−1, in the infrared diffusion reflective spectrum of the active material after pyridine is absorbed and then released.