Abstract:
PROBLEM TO BE SOLVED: To provide a battery module in which the number of components can be decreased while saving the space, in a configuration housing a plurality of batteries in a plurality of places.SOLUTION: The battery module 10 comprises a plurality of battery housing ducts 11, secondary batteries 13 housed in the battery housing ducts 11, and a duct 12 for temperature control of thermoelectric conversion element provided contiguously to the battery housing ducts 11 while being sandwiched by two battery housing ducts 11. A thermoelectric conversion element 15 is provided on the partition 14 of the battery housing duct 11 and the duct 12 for temperature control of thermoelectric conversion element. The thermoelectric conversion element 15 has a first face 15a and a second face 15b performing actions contrary to each other, i.e., heat dissipation and heat suction, depending on the polarity of electrification. The first face 15a is provided so as to correspond with the battery housing duct 11, and the second face 15b is provided so as to correspond with the duct 12 for temperature control of thermoelectric conversion element.
Abstract:
PROBLEM TO BE SOLVED: To provide a thin heater module capable of efficiently heating a battery module, and preventing direct contact with the battery module even when the thin heater module is vibrated or inclined.SOLUTION: A thin heater module 22L standing near and opposite to a heating face 13CLa of a battery module 13CL comprises an insulation holder 31, and a plate-like heater body 34 formed by adhering a plate-like heating element 32 and a uniform heat plate 33. The plate-like heater body 34 is provided along one side of the insulation holder 31. At that time, the plate-like heating element 32 is positioned near the insulation holder 31, and the uniform heat plate 33 is positioned near the battery module heating face 13CLa. The insulation holder 31 is provided with a heater body locking part 31a on its peripheral edge, and the plate-like heater body 34 is locked with the insulation holder 31 by the locking part 31a, and the heater body locking part 31a extends nearer the battery module heating face 13CLa than the plate-like heater body 34.
Abstract:
The electrochemical energy accumulator apparatus (1) comprises a galvanic cell (2), a diverting device (3) assigned to the galvanic cell, a connecting device assigned to the diverting device, and a heat exchanger device (5) assigned to the connecting device and designed to exchange thermal energy with the connecting device. The heat exchanger device has first and second surface areas, where the first surface area is partially designed for thermal conductive contact of the connecting device. The area of the first surface area is smaller than the area of the second surface area. The electrochemical energy accumulator apparatus (1) comprises a galvanic cell (2), a diverting device (3) assigned to the galvanic cell, a connecting device assigned to the diverting device, and a heat exchanger device (5) assigned to the connecting device and designed to exchange thermal energy with the connecting device. The heat exchanger device has first and second surface areas, where the first surface area is partially designed for thermal conductive contact of the connecting device. The area of the first surface area is smaller than the area of the second surface area. A temperature measuring device is assigned to the heat exchanger device. The second surface area of the heat exchanger device is to be flowed by a first fluid. The heat exchanger device has a fluid channel, which is flowed through by the first fluid. A conveying device is assigned to the electrochemical energy accumulator apparatus for conveying the first fluid. The heat exchanger device has a material to pass a phase transition at predetermined conditions. The temperature of the phase transition of the first material is adapted to an operating temperature of the heat exchanger device. The heat exchanger device is to be electrically heated or cooled. The electrochemical energy accumulator has an electrode such as cathode, which has a compound with lithium-orthophosphate oxides (LiMPO 4), where M is a transition metal cation of the first row of the periodic system of the elements. The compound has superior olivine structure. The electrochemical energy accumulator has a separator, which is not electron conductive or only poor electron conductive and consists of partially material-permeable carrier that is coated with an inorganic material on one side. An organic material is used as partially material-permeable carrier, is designed as non-interweaved non-woven, and is coated with an inorganic ion-conductive material, which is ion-conducted at -40[deg] C to 200[deg] C. The inorganic ion-conductive material has particle with a larger diameter of below 100 nm. Independent claims are included for: (1) a motor vehicle; and (2) a method for operating an electrochemical energy accumulator apparatus.
Abstract:
PROBLEM TO BE SOLVED: To suppress variation of battery temperatures or battery voltages between unit cells or battery modules generating in heating of a secondary battery in a temperature controller of the secondary battery constituted by combining a plurality of battery modules formed by connecting in series unit cells or a plurality of unit cells. SOLUTION: A temperature control part 26 controls the heating heat quantity of a heating device 36 heating the secondary battery 30 constituted by combining a plurality of battery modules formed by connecting in series a plurality of unit cells. The temperature control part 26 detects a rate of change with time of open circuit voltage of the secondary battery 30, and controls so as to reduce the heating heat quantity of the heating device 36 when the rate of change with time of the detected open circuit voltage exceeds a prescribed voltage threshold value. COPYRIGHT: (C)2007,JPO&INPIT