摘要:
In order to obtain a secondary battery and a method for producing same whereby, notwithstanding the large size of an electrode group of several tens of stacked layers of positive electrode plates, negative electrode plates, and separators, any residual air, gases, or the like present between layers can be effectively driven out, and the electrolyte can be induced to reliably penetrate into the interior of the electrode group, secondary batteries RB1 to RB4 and the method for producing same are configured such that, during creation of a vacuum in a vacuum injection step, a predetermined section of a battery can 10 opposing the vicinity of the center part of an electrode group 1 undergoes deformation by a predetermined amount or more, and a venting function of driving out residual air between the layers is exhibited.
摘要:
A rechargeable battery having excellent heat resistance, pressure resistance, and airtightness is provided by using a crimping technique to connect a metal exterior body and an electrode terminal. The rechargeable battery comprises an electrode group which includes a positive electrode and a negative electrode; an exterior container which includes an exterior canister for housing the electrode group, and a sealing plate for sealing an open part of the exterior canister; a pair of electrode terminals crimp-joined to the exterior container from inside the exterior container; and an electrolyte solution filled into the exterior container.
摘要:
A rechargeable battery having excellent heat resistance, pressure resistance, and airtightness is provided by using a crimping technique to connect a metal exterior body and an electrode terminal. The rechargeable battery comprises an electrode group which includes a positive electrode and a negative electrode; an exterior container which includes an exterior canister for housing the electrode group, and a sealing plate for sealing an open part of the exterior canister; a pair of electrode terminals crimp joined to the exterior container from inside the exterior container; and an electrolyte solution filled into the exterior container.
摘要:
To obtain a secondary battery that surely positions and fixes a laminated type of electrode group by effectively curbing lateral deviation and vertical deviation, in secondary batteries RB1 to RB11 that include a laminated type of electrode group 1 in which a positive-electrode plate 2 and a negative-electrode plate 3 are so laminated via a separator 4 as to form a plurality of laminated layers, a structure is employed, in which vertical deviation in a lamination direction and lateral deviation in a lamination surface direction are curbed via a fix means that fixes the electrode group 1 to a predetermined position in an outer case 11 that houses the electrode group 1.
摘要:
A nonaqueous secondary battery includes a working electrode containing graphite particles coated with less crystallized carbon and a nonaqueous electrolyte, which contains at least ethylene carbonate and propylene carbonate.
摘要:
A carbon electrode for a nonaqueous secondary battery is provided, which comprises a metal collector serving to catalyze carbon graphitization, graphite particles, and a carbon material having a lower crystallinity than the graphite particles, the graphite particles and the carbon material being sintered together on the metal collector or in the presence of the metal collector.
摘要:
A nonaqueous battery includes a negative electrode containing a carbon material capable of absorbing/desorbing lithium, metallic lithium or an lithium alloy, a positive electrode containing a chalcogenide and a nonaqueous ionic conductor. The nonaqueous ionic conductor contains a diether compound having ether linkages at 1- and 3-positions, 1- and 4-positions or the 2- and 3-positions of a straight-chain hydrocarbon having four carbon atoms.
摘要:
A nonaqueous secondary battery comprising a negative electrode, a positive electrode in which a chalcogenated substance containing lithium is used as a positive electrode active material and a nonaqueous ion conductor, said negative electrode containing a negative electrode active material which is a carbon material where an amorphous carbon is adhered on the surface of graphite particles which are subjected to an oxidizing treatment.
摘要:
A carbon electrode for a nonaqueous secondary battery is provided, which comprises a metal collector serving to catalyze carbon graphitization, graphite particles, and a carbon material having a lower crystallinity than the graphite particles, the graphite particles and the carbon material being sintered together on the metal collector or in the presence of the metal collector.
摘要:
A nonaqueous secondary battery is provided, which comprises a positive electrode, a negative electrode and a nonaqueous ion conductor, the negative electrode containing a lithium-containing substance or a lithium insertable and releasable substance as a positive electrode active material, the positive electrode containing a lithium nickelate compound as a positive electrode substance, wherein the lithium nickelate compound has a layered rocksalt crystalline structure belonging to Space Group R-3m and the ratio of a 3a- and 3b-site occupation rate of lithium atoms to a 3a- and 3b-site occupation rate of nickel atoms in the crystal lattice thereof is 0.85 to 1.15.