摘要:
In order to provide a positive electrode for a secondary battery having a low electric resistance and a large mechanical strength, and a secondary battery capable of charge and discharge using a large current and having a large capacity and excellent in storage characteristics, there is used a positive electrode for a secondary battery comprising an active material layer at least comprising a radical compound and a carbon fiber in which a graphite structure has an average value of interlayer distances d002 in the range of not less than 0.335 nm and not more than 0.340 nm. Such a carbon fiber having the interlayer distance has a modulus of elongation in the range of not less than 200 GPa and not more than 800 GPa. Particularly the carbon fiber preferably has a volume resistivity in the range of not less than 200μΩ·cm and not more than 2000μΩ·cm. The carbon fiber is preferably a vapor-grown carbon fiber or a graphitized carbon fiber derived from a mesophase pitch as a precursor.
摘要:
An object of the present invention is to provide a battery which is high in capacity density and superior in stability. An electrode containing a compound having a diazine-N,N′-dioxide structure shown by a general formula (1) described below as an electrode active material is used, where x, y, x′, and y′ independently shows integer numbers of 0 or more respectively, and the order of condensation of diazine rings and benzene rings may be alternate or random. One of substituents R1, R2, R3, R4, Ra, Rb, Rc, and Rd shows a part of main chain or side chain of oligomer or polymer, and the other independently shows hydrogen atom, halogen atom, or a specific group.
摘要:
An object of the present invention is to provide a power storage device with low internal resistance, employing a cathode containing a nitroxyl polymer. To attain the object in the present invention, in the power storage device employing a cathode comprising a nitroxyl polymer, a cathode collector having a conductive auxiliary layer comprising carbon as a main component formed and integrated on an aluminum electrode is used.
摘要:
An object of the present invention is to provide a power storage device with excellent cycle property, employing a cathode containing a nitroxyl polymer. To attain the object in the present invention, in the power storage device employing a cathode comprising a nitroxyl polymer, a lithium or lithium alloy anode is used as an anode active material and the cathode is in direct contact with the anode.
摘要:
An object of the present invention is to provide a power storage device with excellent cycle property, employing a cathode containing a nitroxyl polymer. To attain the object in the present invention, in the power storage device employing a cathode comprising a nitroxyl polymer, a lithium or lithium alloy anode is used as an anode active material and the cathode is in direct contact with the anode.
摘要:
An electrode including a compound acting as an electrode active material and represented by a general formula (1) having a diazine N,N′-dioxide structure. A novel battery with the higher specific density and the excellent charge and discharge stability can be provided by incorporating the electrode having the compound represented by the general formula (1). [General Formula 1]
摘要:
A charge storage device such as a battery, wherein a positive electrode comprises a nitroxyl compound having a structure of a nitroxyl cation moiety represented by formula (I) in an oxidized state while having a structure of a nitroxyl radical moiety represented by formula (II) in a reduced state and a reaction represented by reaction formula (A) in which an electron is transferred between these states is used as a positive electrode reaction. The charge storage device can have a higher energy density and can be used at a large current.
摘要:
A secondary battery is provided which has a high energy density, a high capacity, an excellent stability in charge-discharge cycle as well as an excellent safety. The secondary battery comprises at least a positive electrode, a negative electrode and an electrolyte, wherein an active material of at least one of the positive and negative electrodes includes at least one compound selected from the group consisting of radical compounds represented by the formula (1) or the formula (3): (in the formula (1), X1 and X2 each independently represent a group represented by the formula (3), alkoxyl group, halogen atom, hydroxyl group or cyano group, and R1˜R8 each independently represent hydrogen atom or alkyl group.) (in the formula (3), R10 represents alkyl group or substituted or unsubstituted phenyl group.)
摘要:
A battery, which has excellent safety in an overcharged state and is excellent in low-temperature characteristics and cycle characteristics, is provided.The electrolytic solution of the secondary battery contains a compound which has a diazine N,N′-dioxide structure represented by general formula (1). in which, n, m, n′, and m′ each independently are an integer 0 or larger; the diazine rings and the benzene rings may be condensed alternately or randomly; and substituents R1, R2, R3, R4, Ra, Rb, Rc, and Rd each independently represent hydrogen atom, halogen atom, or specific group. However, when n is 2 or larger, then Ra and Rb may be the same or different, and when n′ is 2 or larger, then Rc and Rd may be the same or different. In addition, these substituents, in cooperation with each other, may form a ring structure.
摘要:
The present invention relates to a battery comprising at least a positive electrode, a negative electrode and an electrolyte as composing elements, wherein the positive electrode and/or the negative electrode comprise an active material of nitroxyl radical compound represented by the following general formula (1) as a starting material or a reaction product of at least a discharge reaction of electrode reactions: wherein Ar represents substituted or unsubstituted aromatic heterocyclic group containing nitrogen wherein one endocyclic nitrogen atom or at least one of plural endocyclic nitrogen atoms exists as N-oxide; the substituent R1 represents hydrogen atom, halogen atom, hydroxyl group, nitro group, nitroso group, cyano group, carboxyl group, substituted or unsubstituted alkyl group, substituted or unsubstituted alkenyl group, substituted or unsubstituted cycloalkyl group, substituted or unsubstituted aromatic hydrocarbon group, substituted or unsubstituted aromatic heterocyclic group, substituted or unsubstituted aralkyl group, substituted or unsubstituted amino group, substituted or unsubstituted alkoxy group, substituted or unsubstituted aryloxy group, substituted or unsubstituted alkoxycarbonyl group, substituted or unsubstituted aryloxycarbonyl group, or substituted or unsubstituted acyl group, wherein one or more of the atoms may be substituted with sulfur atom, silicon atom, phosphorus atom or boron atom; R1 may be the identical with Ar and a ring structure may be formed between R1 and Ar.
摘要翻译:本发明涉及至少包含作为组成元素的正极,负极和电解质的电池,其中正极和/或负极包含由以下通式(1)表示的硝酰自由基化合物的活性材料 )作为原料或电极反应的放电反应的反应产物:其中Ar表示取代或未取代的含氮的芳族杂环基,其中一个环内氮原子或多个环内氮原子中的至少一个作为N-氧化物存在; 取代基R 1表示氢原子,卤素原子,羟基,硝基,亚硝基,氰基,羧基,取代或未取代的烷基,取代或未取代的烯基,取代或未取代的环烷基 取代或未取代的芳族烃基,取代或未取代的芳族杂环基,取代或未取代的芳烷基,取代或未取代的氨基,取代或未取代的烷氧基,取代或未取代的芳氧基,取代或未取代的烷氧基羰基,取代或未取代的芳氧基羰基 或取代或未取代的酰基,其中一个或多个原子可以被硫原子,硅原子,磷原子或硼原子取代; R 1可以与Ar相同,并且可以在R 1和Ar之间形成环结构。