Abstract:
A positive electrode plate for a lithium ion secondary battery is made of aluminum and includes a positive current collecting foil made of aluminum, in which at least a main surface portion constituting a main surface is porous, a positive active material layer formed on the main surface portion of the positive current collecting foil, and a coating layer, having electrical conductivity and corrosion resistance, formed between the positive current collecting foil and the positive active material layer to directly coat the main surface of the positive current collecting foil.
Abstract:
A main object of the present invention is to provide a solid electrolyte material having excellent Li ion conductivity. To attain the object, the present invention provides a solid electrolyte material represented by a general formula: Lix(La1-aM1a)y(Ti1-bM2b)zOδ, characterized in that “x”, “y”, and “z” satisfy relations of x+y+z=1, 0.652≦x/(x+y+z)≦0.753, and 0.167≦y/(y+z)≦0.232; “a” is 0≦a≦1; “b” is 0≦b≦1; “δ” is 0.8≦δ≦1.2; “M1” is at least one selected from the group consisting of Sr, Na, Nd, Pr, Sm, Gd, Dy, Y, Eu, Tb, and Ba; and “M2” is at least one selected from the group consisting of Mg, W, Mn, Al, Ge, Ru, Nb, Ta, Co, Zr, Hf, Fe, Cr, and Ga.
Abstract translation:本发明的主要目的是提供具有优异的Li离子传导性的固体电解质材料。 为了达到上述目的,本发明提供一种由通式Lix(La1-aM1a)y(Ti1-bM2b)zOδ表示的固体电解质材料,其特征在于“x”,“y”和“z”满足关系 x + y + z = 1,0.652≦̸ x /(x + y + z)≦̸ 0.753和0.167< lE; y /(y + z)≦̸ 0.232; “a”为0≦̸ a≦̸ 1; “b”为0≦̸ b≦̸ 1; “δ”为0.8≦̸δ≦̸ 1.2; “M1”是选自Sr,Na,Nd,Pr,Sm,Gd,Dy,Y,Eu,Tb和Ba中的至少一种; “M2”为选自Mg,W,Mn,Al,Ge,Ru,Nb,Ta,Co,Zr,Hf,Fe,Cr和Ga中的至少一种。
Abstract:
A main object of the present invention is to provide a Li—La—Zr—O-based solid electrolyte material having favorable denseness. The present invention solves the problem by providing a solid electrolyte material including Li, La, Zr, Al, Si and O, having a garnet structure, and being a sintered body.
Abstract:
Solid state, thin film, electrochemical devices (10) and methods of making the same are disclosed. An exemplary device 10 includes at least one electrode (14) and an electrolyte (16) deposited on the electrode (14). The electrolyte (16) includes at least two homogenous layers of discrete physical properties. The two homogenous layers comprise a first dense layer (15) and a second porous layer (16).
Abstract:
To provide with high productivity a non-aqueous electrolyte secondary battery having high capacity.The present invention is a non-aqueous electrolyte secondary battery provided with an electrode assembly and a non-aqueous electrolyte including a non-aqueous solvent, the electrode assembly including a positive electrode and a negative electrode. In the positive electrode, a positive electrode active material layer is formed on a positive electrode core. In the non-aqueous electrolyte secondary battery, the non-aqueous solvent includes 30 to 70 vol % ethylene carbonate at 25° C. and 1 atm, the non-aqueous electrolyte includes lithium bis(oxalato)borate, and the packing density of the positive electrode active material layer is from 2.0 to 2.8 g/ml.
Abstract:
To provide a non-aqueous electrolyte secondary battery having high capacity and superior safety.The present invention is a non-aqueous electrolyte secondary including having a wound electrode assembly of a positive electrode, negative electrode and separator housed in an outer can having both a bottom and an opening, the opening being sealed by a sealing plate. This non-aqueous electrolyte secondary battery is characterized in that the battery further comprises a current interrupt device activated by rising pressure inside the battery, the bottom surface of the outer can is parallel to the direction of the winding axis of the wound electrode assembly, the thickness of the negative electrode at a state of charge of 100% is equal to or less than 130% of the thickness of the negative electrode at the time of battery assembly, the maximum width of the wound electrode assembly perpendicular to the winding axis direction during assembly is from 90 to 98% of the distance from the bottom surface of the outer can to the current interrupt device, and the battery capacity of the non-aqueous electrolyte secondary battery is equal to or greater than 4 Ah.
Abstract:
According to one embodiment, a non-aqueous electrolyte battery includes an outer case, a negative electrode, a positive electrode including a current collector and a positive electrode layer formed on surface of the current collector and opposed to the negative electrode layer, and a non-aqueous electrolyte, wherein the positive electrode layer includes a layered lithium nickel cobalt manganese composite oxide and a lithium cobalt composite oxide, the positive electrode layer has a pore volume with a pore diameter of 0.01 to 1.0 μm, the pore volume being 0.06 to 0.25 mL per 1 g of a weight of the positive electrode layer, and a pore surface area within the pore volume range is 2.4 to 8 m2/g.
Abstract:
LiPO2F2, an electrolyte salt additive for batteries, is manufactured by the reaction of POF3, PF5 or mixtures thereof, with Li3PO4 forming a reaction mixture comprising LiPO2F2. When POF3 is applied, the reaction mixture which contains essentially only LiPO2F2 is preferably extracted from the reaction mixture with a solvent which also is applicable as solvent for lithium ion batteries. If PF5 is applied, then, depending on the molar ratio of PF5 and Li3PO4, the reaction mixture also contains LiF and/or LiPF6. To isolate pure LiPO2F2 from LiF, the reaction mixture containing essentially only LiPO2F2 and LiF may for example, be extracted with dimethoxyethane, acetone, dimethyl carbonate or propylene carbonate. To isolate pure LiPO2F2 from LiPF6, the reaction mixture containing essentially only these constituents is preferably extracted with a solvent which also is applicable as solvent for the LiPF6 in lithium ion batteries to dissolve and remove LiPF6.
Abstract:
In a rechargeable non-aqueous electrolyte secondary battery using positive electrodes, negative electrodes and a non-aqueous electrolytic solution, additives to the electrolytic solution are used in combination, preferably in combination of at least two compounds selected from o-terphenyl, triphenylene, cyclohexylbenzene and biphenyl, and thus there are provided batteries excellent in safety and storage characteristics.
Abstract:
Set forth herein are garnet material compositions, e.g., lithium-stuffed garnets and lithium-stuffed garnets doped with alumina, which are suitable for use as electrolytes and catholytes in solid state battery applications. Also set forth herein are lithium-stuffed garnet thin films having fine grains therein. Disclosed herein are novel and inventive methods of making and using lithium-stuffed garnets as catholytes, electrolytes and/or anolytes for all solid state lithium rechargeable batteries. Also disclosed herein are novel electrochemical devices which incorporate these garnet catholytes, electrolytes and/or anolytes. Also set forth herein are methods for preparing novel structures, including dense thin (