Abstract:
A lithium secondary cell includes a cell case that includes a covering region and an outer peripheral region. The covering region is a rectangular region overlaid on the positive electrode, the separator, and the negative electrode in a direction of superposition. The outer peripheral region is a rectangular frame-like region surrounding the covering region. The outer peripheral region includes first regions that are band-like regions extending respectively along a pair of long sides. In the first regions, a first sheet portion and a second sheet portion are bonded together. A second region is a band-like region extending along the covering region between the covering region and at least one first region out of the pair of first regions. In the second region, the first sheet portion and the second sheet portion are in contact with or in close proximity to each other without being bonded together.
Abstract:
A lithium secondary cell includes a positive electrode, a separator, a negative electrode, an electrolytic solution, and a cell case. The positive electrode, the negative electrode, and the separator are impregnated with the electrolytic solution. The cell case is a sheet-like member and convers the positive electrode and the negative electrode from both sides in the direction of superposition. The cell case houses therein the positive electrode, the separator, the negative electrode, and the electrolytic solution. The electrolytic solution contains an electrolytic solution material serving as a base compound and LiDFOB serving as an additive. The moisture content in the electrolytic solution is higher than or equal to 10 ppm by mass and lower than or equal to 15 ppm by mass.
Abstract:
When electromagnetic radiation including infrared radiation is emitted from a filament 41, the infrared radiation passes through the inner pipe 42, reaches a reflection layer 46 that is disposed away from the inner pipe 42 so as to cover only a part of a periphery of the filament 41, and is reflected. At this time, the reflection layer 46 is disposed away from the inner pipe 42, and the reflection layer 46 can be cooled by a coolant flowing through a coolant channel 49. Thus, for example, as compared with a case where the reflection layer 46 is formed on the inner pipe 42, overheating of the reflection layer 46 can be further suppressed.
Abstract:
A method of drying a coating film formed on a surface of a PET film includes radiating an infrared ray having a dominant wavelength of 3.5 μm or less from an infrared heater onto a PET film on whose surface the coating film containing water or an organic solvent having an absorption spectrum of 3.5 μm or less has been formed, where the infrared heater has a structure such that an outer circumference of a filament is covered with a protection tube, and a partition wall for forming a flow passageway of a cooling fluid that restrains rise in temperature of a heater surface is provided in a space surrounding this protection tube, and bringing cooling air into contact with the surface of the PET film/coating film has been formed, so as to dry the PET film at a temperature lower than a glass transition point of the PET film.