Development of wireless LSI technology capable of Video transmission powered by a button battery by NEC
NEC made an announcement on development of wireless technology in achieving about 10 times of speed and power performance over the currently used technology through use of time division demodulation processing of FDM (Frequency Division Multiplexing) signal. NEC has demonstrated the basic operation of this technology by using a prototype of wireless LSI equipped with this newly developed technology. Additionally, NEC has developed a power conversion technology capable of converting part of the radio wave energy received by LSI as a thermal noise during the process of filtering and amplification in LSI which is not used for demodulation into power. Read more
Mercury-free Alkaline button (LR) battery by Sony
In conventional alkaline button batteries mercury is added to the anode material to prevent it in producing hydrogen gas. Furthermore, the cathode materials in such batteries are know for their low hydrogen gas absorption compared to silver oxide button battery cells ,making the development of mercury-free alkaline button battery a major technological challenge. This is due to the fact that alkaline batteries use Zinc for their anode and manganese dioxide for their cathode with an alkaline electrolyte. Zinc acts as an activator in battery’s anode corrodes when it is dissolved in alkaline solution making it difficult to maintain capacity of unused battery. Read more
