Abstract:
PROBLEM TO BE SOLVED: To provide a lithium ion capacitor that maintains high safety even when overcharged. SOLUTION: The lithium ion capacitor includes an electrode sheet, constituted by arranging a positive electrode sheet and a negative electrode sheet each having an electrode layer formed on a current collector, one over the other with a sheet type separator interposed, and an electrolyte including lithium salt, wherein the separator has a low-melting-point part which is formed locally in a region positioned between the positive electrode sheet and negative electrode sheet, and also molten at lower temperature than other parts. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a laminate-armored power storage device which, if gas is produced inside its armored body, can reliably expel the gas from a certain portion without liquid leakage. SOLUTION: The device has the armored body including armor films stacked on each other. The films are hermetically bonded together at bonding portions formed at outer fringe portions of the films. A container portion is formed inside the armor body. Storage device elements and an electrolyte are contained in the container portion. Non-bonded portions in communication with the container portion are formed at the outer fringe portions of the armor films which constitute the armor body and which are stacked on each other. The non-bonded portions are surrounded by the bonding portions. A hole portion extending through at least one of the armor films and a seal portion are formed in a region where the non-bonded portions are formed. The seal portion is formed to surround the hole portion. Parts of the armor films are bonded together in the seal portion. The hole portion is formed at a position other than the center position of the region where the non-bonded portions are formed. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a laminate coating electricity storage device that reliably discharges a gas produced in a coating body from a specified section and is made compact on the whole. SOLUTION: The laminate coating electricity storage device comprises: a coating body formed by joining coating films, put one over the other, at a junction part formed at an outer peripheral edge; an electricity storage device element and an electrolyte stored in an electricity storage part in the coating body; and a terminal member electrically connected to a current collector of the electricity storage device element in the coating body and projecting out from at least one side of the junction part. The coating body has a non-junction part, where a connection part of the terminal member for the current collector is arranged, formed between the one side of the junction part provided with the terminal member and the electricity storage part. In the region where the non-junction part is formed, a seal part formed by joining portions of the coating films, put one over the other, to each other and a hole part formed in the seal part and penetrating at least one coating film are formed. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an equalization control circuit with reduced consumption current wherein stability is ensured even in long storage and the voltage of a capacitor module does not largely vary and a capacitor module equipped with this equalization control circuit. SOLUTION: The equalization control circuit equalizes the cell voltages of a power storage device including at least multiple capacitor cells. Of the capacitor cells, a capacitor cell whose voltage is lower than the cell voltages of the other capacitor cells by a predetermined ratio is charged with electric charges stored in the other capacitor cells. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a film-armored electric device assembly capable of safely and reliably exhausting gas without causing a bursting of a film armor body by the generation of gas even when the gas is generated in a closed space inside a film-armored electric device. SOLUTION: The film-armored electric device assembly 10 has a plurality of film-armored electric devices 20 disposed so that the mutually adjacent film-armored electric devices are laminated in a spaced state in a case 11. The plurality of film-armored electric devices are respectively provided with gas exhaust hole forming members having needle-like projections in a spaced state, and a film armor body expanded by the generation of gas in the film-armored electric device through the gas exhaust hole forming member is formed with a gas exhaust hole. The gas is exhausted from this gas exhaust hole. COPYRIGHT: (C)2010,JPO&INPIT