An implantable power supply with an optically rechargeable lithium battery

  title={An implantable power supply with an optically rechargeable lithium battery},
  author={Kazuya Goto and Tetsuya Nakagawa and Osamu Nakamura and Satoshi Kawata},
  journal={IEEE Transactions on Biomedical Engineering},
A novel power supply for medical implants has been developed. A wireless near-infrared power transmission recharges a lithium secondary battery in the power supply. A photovoltaic cell array embedded under skin receives near-infrared light through the skin and charges the battery directly powering an implanted device. The authors have shown that, for a photodiode area of 2.1 cm/sup 2/, 17 min of near-infrared irradiation at a 810-mn wavelength with a power density of 22 mW/cm/sup 2/ can send… CONTINUE READING
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