摘要:
The accumulator comprises a body, a separator, negative and positive electrodes made of carbon material and an electrolyte solution containing halogenide ions. The accumulator is characterised in that the positive electrode contains absorbed halogen when charged
摘要:
In a non-aqueous electrolyte secondary cell including a positive electrode, a negative electrode and a non-aqueous electrolyte, the negative electrode includes a material capable of absorbing or releasing lithium and wherein the non-aqueous electrolyte contains a room-temperature molten salt having a melting point of 60null C. or less and a lithium salt.
摘要:
Proton conducting gel, and proton conductor having high ionic conductivity near room temperature, which can be reduced in the thickness and enlarged in the size easily and which can provide excellent practical effect for products such as fuel cells, as well as a production process for them are provided. A gel having a dispersion phase comprising a phosphate molecular chains and a dispersion medium comprising water is used.
摘要:
A lithium-secondary-battery negative electrode having a protective layer to prevent the surface deterioration of the inorganic solid electrolytic layer. The negative electrode comprises metallic lithium or a lithium-containing metal, a first inorganic solid electrolytic layer (thickness: a) formed on the metal, and a second inorganic solid electrolytic layer (thickness: b) formed on the first inorganic solid electrolytic layer. The thickness ratio b/a is specified to be more than 0.5.
摘要:
Rechargeable battery cell operable at normal temperature, with an SO2 based electrolyte system, a negative electrode and a positive electrode, wherein one of the electrodes has an electronically conductive discharge element. An improved cycle stability and consequently a longer useful lifetime is achieved in that, as a reaction protection material to protect the discharge element against unwanted reactions with constituents of the SO2 based electrolyte system, at least a surface layer of the electronically conductive discharge element contains an alloy of chrome with another metal and/or a protective metal, selected from rhodium, tungsten, rhenium, tantalum, platinum, iridium, osmium or technetium in pure form, as an alloy or as a constituent of a compound and/or a carbide, nitride or phosphide of titanium, nickel, cobalt, molybdenum, iron, vanadium, zircon or manganese.
摘要:
In the bipolar battery, any one of a positive electrode active material layer and a negative electrode active material layer is made of a changeable electrode active material, and the other is made of an unchangeable electrode active material. The changeable electrode active material is an active material having a characteristic in which, once a maximum charging capacity of the changeable electrode active material is almost reached during charge, a change in voltage of the changeable electrode active material becomes greater than that before the maximum charging capacity thereof is almost reached, and the unchangeable electrode active material is an active material having a characteristic in which, even when the maximum charging capacity of the changeable electrode active material is almost reached during the charge, a voltage of the unchangeable electrode active material is almost the same as that before the maximum charging capacity of the changeable electrode active material is almost reached.
摘要:
A solid-stated rechargeable battery or other electrochemical element for use at high (>40null C.) temperature comprises a cathodic and/or anodic electrode comprising, as a host material for alkali metal ions, a normal or inverse spinel type material and an electrolyte layer sandwiched between said electrodes, which layer comprises ceramic electrolyte particles that are essentially free of electronically conductive components, and which comprise less that 1% by weight of dissolved alkali containing salt thereby maintaining good performance as regards the capacities delivered during various charge/discharge cycles at a high temperature.
摘要:
A battery comprises an acid electrolyte in which a compound provides acidity to the electrolyte and further increases solubility of at least one metal in the redox pair. Especially preferred compounds include alkyl sulfonic acids and alkyl phosphonic acids, and particularly preferred redox coupled include Co3null/Zn0, Mn3null/Zn0, Ce4null/V2null, Ce4null/Ti3null, Ce4null/Zn0, and Pb4null/Pb0.
摘要:
An electrolyte comprising a cationic species disposed in a polyoxometalate network. A composition comprising cationic species and polyoxometalate anionic species, wherein the polyoxometalate anionic species are coupled through a network of bridge ligands. An apparatus comprising a first electrode and a second electrode; a current collector coupled to one of the first and the second electrode; and an electrolyte disposed between the first electrode and the second electrode, the electrolyte comprising a cationic species disposed in a polyoxometalate network.
摘要:
To provide a lithium secondary cell, which is excellent in productivity since a cell structure is simple and easy for assembly. Provided is a lithium secondary cell having: an internal electrode body including a positive electrode plate, a negative electrode plate, the positive electrode plate and the negative electrode plate being wound and laminated around an external periphery wall of a hollow cylindrical winding core, and inside the internal electrode body a nonaqueous electrolyte solution being impregnated, a cylindrical cell case contained in this internal electrode body 1 with both ends being opened, and two electrode caps sealing the above described internal electrode body 1 at both the open ends of this cell case. The electrode cap has a plate member sealing the internal electrode body and disposed so as to seal both the open ends of the above described cell case, an external terminal member protruding onto the surface of the electrode caps to lead out currents to outside, and an internal terminal member brought into connection with the internal electrode body and taking out currents from the internal electrode body, and an elastic body and at least two of the above described plate member, the external terminal member and the internal terminal member are joined together for construction. Furthermore, there is also provided an assembly of lithium secondary cells.