摘要:
A nonaqueous secondary electrolytic battery comprising an electricity-generating element formed by spirally winding a laminate of a positive electrode plate, a separating material and a negative electrode plate, and an electrolytic solution with which the separating material, if it is a separator, is impregnated. The electricity-generating element is sealed in a battery case formed by a resin-laminated sheet comprising a metal layer as a barrier layer. Only a pair of lead terminals are drawn to the exterior of the battery case. The resin sheet comprises an oriented resin layer laminated on both surfaces of the metal layer. The inner heat-fused layers are opposed and heat-fused to each other. A molten and solidified resin mass is formed protruding from the inner end of the welded portion toward the inner space of the battery by 0.1 mm or more. Alternatively, the welded portion is formed thinner at the outer end thereof than at the inner end thereof.
摘要:
The object of the present invention is to provide a nickel metal-hydride battery excellent in cycle performance, high-rate discharging ability, and output power performance, by utilizing a hydrogen absorbing electrode comprising a hydrogen absorbing alloy powder as an active material, which is excellent in resistance to corrosion and high-rate discharging performance. Provided are a hydrogen absorbing electrode comprising 100 parts by weight of a hydrogen absorbing alloy powder which contains, as a main component, a rare earth element and a transition metal element, and has a saturation mass susceptibility of 1.0 to 6.5 emu/g, and 0.3 to 1.5 part by weight of an oxide or hydroxide of a rare earth element, the oxide or hydroxide has as a main component one or two or more rare earth elements selected from a group consisting of Dy, Ho, Er, Tm, Yb, and Lu and is in the form of powder whose average diameter is equal to or less than 5 μm, and a nickel metal-hydride battery comprising a nickel electrode as a positive electrode and a hydrogen absorbing electrode as a negative electrode.
摘要:
A nonaqueous secondary electrolytic battery comprising an electricity-generating element formed by spirally winding a laminate of a positive electrode plate, a separating material and a negative electrode plate, and an electrolytic solution with which the separating material, if it is a separator, is impregnated. The electricity-generating element is sealed in a battery case formed by a resin-laminated sheet comprising a metal layer as a barrier layer. Only a pair of lead terminals are drawn to the exterior of the battery case. The resin sheet comprises an oriented resin layer laminated on both surfaces of the metal layer. The inner heat-fused layers are opposed and heat-fused to each other. A molten and solidified resin mass is formed protruding from the inner end of the welded portion toward the inner space of the battery by 0.1 mm or more. Alternatively, the welded portion is formed thinner at the outer end thereof than at the inner end thereof.
摘要:
Elution of a fuel electrode material into a fuel in a direct methanol fuel cell is monitored. The elution arises resulting from elution of a perfluorosulfonic acid polymer in the fuel electrode into the fuel in a high-concentration fuel equal to or more than 2 M or at an operating temperature equal to or more than 80° C. The electrode catalyst elutes into the fuel and the characteristic degrades. Operating conditions of the fuel cell, i.e., the fuel concentration and the operating temperature are limited to be less than 2 M and 80° C. or less, respectively. In addition, the elution characteristic is evaluated at the time of manufacture of the fuel cell and quality control is conducted. Further, existence of the elution is detected by a color of the fuel etc., and when the elution is detected, the upper limits of the operating temperature and the fuel concentration are decreased, so that further elution is prevented.
摘要:
It is an object of the present invention to provide an active material for lithium ion battery capable of producing a lithium ion battery having an excellent high rate charge and discharge performance and a lithium ion battery having an excellent high rate charge and discharge performance. The present invention provides an active material for lithium ion battery represented by a composition formula: Li[Li(1-x)/3AlxTi(5-2x)/3]O4 (⅛≦x
摘要翻译:本发明的目的是提供一种锂离子电池用活性物质,该锂离子电池能够制造具有优异的高速充放电性能的锂离子电池和具有优异的高速充放电性能的锂离子电池。 本发明提供由Li [Li(1-x)/ 3AlxTi(5-2x)/ 3] O4(⅛&nlE; x <1)钛酸锂代替的锂离子电池用活性物质, 以及使用该活性物质作为负极活性物质的锂离子电池。
摘要:
A grid for a battery plate is made by forming a metal sheet is formed into a grid-like shape. Rupture due to torsion or stress concentration does not occur in a basal portion of a wire which is drawn out from a node of the grid, thereby preventing corrosion due to electrolyte from advancing so as not to cause a crack of corrosion in an early stage. The invention provides also a battery using the grid for a battery plate, a method of producing the grid for a battery plate, and a battery using it.
摘要:
The metal foil of the positive electrode 1a or the negative electrode 1b in the power generating element 1 is connected along the connecting plate portion 2b which is folded, twisted, and provided in a protruding condition from the main portion 2a of the current-collector connector 2; hence the shape of the current-collector connector 2 becomes easy to form, and a battery capable of enhancing current collection efficiency, reliability and workability can be provided.
摘要:
An object is to provide a positive electrode material capable of increasing a discharge capacity of a nonaqueous electrolyte secondary battery, a production method thereof, and the like. Provided are a positive electrode material having a particulate active substance containing lithium manganese phosphate, wherein the particulate active substance is provided with a membranous material containing carbon and attached to the surface of the particulate active substance, and a projecting material containing carbon and projecting outward from the surface of the particulate active substance or the membranous material, a method for producing a positive electrode material having a particulate active substance containing lithium manganese phosphate, which performs a hydrothermal synthesis step of forming a particle containing lithium manganese phosphate by a hydrothermal method in the presence of a first organic compound with a molecular weight of 350 or less, which has two or more hydroxy groups in a molecule, and a calcination step of calcinating the particle in the presence of a second organic compound with a molecular weight of 500 or more, which has a hydroxy group in a molecule, and the like.
摘要:
A positive active material is provided which can give a battery having a high energy density and excellent high-rate discharge performance and inhibited from decreasing in battery performance even in the case of high-temperature charge. Also provided is a non-aqueous electrolyte battery employing the positive active material. The positive active material contains a composite oxide which is constituted of at least lithium (Li), manganese (Mn), nickel (Ni), cobalt (Co), and oxygen (O) and is represented by the following chemical composition formula: LiaMnbNicCodOe (wherein 0