Projects per year
We demonstrate that the high-capacity organic electrode material, p-benzoquinone, is able to sustain ultrahigh redox reaction rates without any conductive additives when applied as ultrathin layers in an all-solid-state thin-film battery setup, viable for e.g. high-performance power sources in microelectronic devices. The combined atomic/molecular layer deposition (ALD/MLD) technique employed for the fabrication allows the in situ deposition of the quinone cathode in its lithiated state. The LiPON solid electrolyte is fabricated by ALD as a remarkably thin layer down to 30 nm. Our proof-of-concept setup is able to reach 50% of the full capacity in less than 0.25 s, with energy/power densities of 108 mW h cm-3 and 508 W cm-3. These characteristics are of considerable promise towards bridging the gap between microbatteries and microsupercapacitors. Moreover, we demonstrate an all-ALD/MLD-made organic battery where the lithium quinone and LiPON layers are combined with a lithium terephthalate anode layer.
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- 4 Finished
Heiska, J., Karppinen, M., Nisula, M., Garg, N. & Safdar, M.
01/09/2017 → 31/08/2018
Project: EU: ERC grants
01/09/2016 → 31/08/2020
Project: Academy of Finland: Other research funding
01/04/2016 → 31/08/2019
Project: Academy of Finland: Strategic research funding