Casio prediction 10 years after the portable
With the "WPC EXPO 2003" workshop held at the same time, "the fuel cell is about to infiltrate into portable devices" (September 17, by day by day by the electronics and environmental protection held in common), the Casio Computer stand equipment manufacturers stand up to 10 years after the portable device power supply is predicted. Then such power will be divided into at improvement on the traditional model of technology and fuel cell technology. Personal computer in the fuel cell will replace the existing rechargeable battery power supply into the mainstream. In digital cameras and handheld computers in areas such as fuel cells, lithium manganese batteries 1st grade as well as next-generation lithium-ion batteries will coexist. At Walkman (Walkman) and the field of low-power radios, etc., apart from the company's prediction of fuel cell, alkaline manganese batteries, as well as one at the electric double layer capacitors (EDLC), such as rechargeable thinkpad x30 battery, thinkpad x23 battery, the solar cells will arise and the use of human body temperature and exercise the power of natural energy.
Required, such as laptop at 1000Wh / L or more for high energy density of energy, fuel cells because of the way of direct methanol (DMFC) output power density not enough, it will be used by changing the methanol supply of hydrogen fuel cell modification. DMFC current output power density of 50mW/cm2. "If not 100mW/cm2DMFC will not be able to use" (the company's technology All in all elements of the Department of Shionoya Masaharu). At present, the maximum data 50mW/cm2, at present the use of platinum catalyst and acid (Sulfonic Acid)-type polymer electrolyte membrane material systems has reached its limit. As long as the failure to develop a new material of the technology will be difficult to achieve. On the other hand, modification type are developed by Casio, and because of the use of pure hydrogen, will accordingly be able to improve the output power density and reduce the volume. However, "also thinkpad t61p battery, thinkpad t60p battery at a similar stage of arts and crafts" (Salt Valley). The key lies in how to achieve volume production in order to reduce costs.
In digital cameras and handheld computers required 800 ~ 500Wh / L over the field of intermediate energy density will be used to quality-type fuel cell or DMFC, but the next generation of lithium-ion batteries will continue to become the mainstream.
At Walkman, radios and electronic dictionaries, etc. Just 300Wh / L energy density of the following areas at DMFC fuel cells will become a mainstream product. The company has been in the study can replace the batteries on the 5th of the DMFC. In his speech, the company displayed at the upper cylindrical module is equipped with electricity, with lower methanol used to store the type and at the Department of thinkpad t40P battery, thinkpad a22 battery power module is equipped with fuel cells on the 5th of the illustrations. Shiotani stressed that the batteries can be recycled by the shell material or biodegradable plastics (Biodegradable Plastics) composition, because of recoverable re-use will be easily acceptable to the community.