| DENSEI-LAMBDA K.K. Patent applications |
| Patent application number | Title | Published |
|---|
| 20090091191 | ELECTRIC POWER SUPPLY SYSTEM - There is provided an electric power supply system in which electric power is delivered from one electric power unit to load or the other electric power unit and can control and monitor the other electric power unit by one electric power unit. An electric source bus is built up by connecting an output line | 04-09-2009 |
| 20090021217 | METHOD AND DEVICE FOR SAFETY PROTECTION OF SECONDARY BATTERY - A method and device for safety protection of a secondary battery capable of preventing smoking and ignition thereof. A lithium cell | 01-22-2009 |
| 20080299452 | BATTERY PACK - The battery pack is made up by stacking vertically a plurality of electrically-series-connected flat-plate-like battery cells so as to attain a given voltage and a given capacity. Interlayer members are interposed between each battery cell stacked. The interlayer member functions as a surface pressure distributing member to thereby equalize surface pressures of the battery cells building up the battery pack, thus permitting the whole of the battery pack to lengthen in life span. Further, by employing, as the interlayer members, heat insulating members with heat insulating efficiency or heat dissipating members with excellent thermal conductivity, the battery cell located in a central position of the battery pack is prevented from shortening partially in life span, thus permitting the whole of the battery pack to lengthen in life span. | 12-04-2008 |
| 20080299445 | SECONDARY BATTERY PACK - A chargeable and dischargeable lithium cell and the filter unit capable of absorbing flammable materials are housed inside a casing. When an overvoltage is impressed from a battery charger to a battery pack and then internal gases inside the lithium cell are discharged out of an explosion-proof valve, the flammable materials included in internal gases are absorbed by the filter unit to change the internal gases into nonflammable gases. The internal gases purified by passing through the filter unit are exhausted from a gas-vent opening to the outside of the casing. By providing the filter unit inside the casing, the flammable materials discharged out of the lithium cell | 12-04-2008 |
