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Title: E-blood: High power aqueous redox flow cell for concurrent powering and cooling of electronic devices
Authors: Wang, Xun 
Gao, Mengqi
Lee, Yann Mei 
Salla, Manohar 
Zhang, Feifei 
Huang, Songpeng 
Wang, Qing 
Keywords: Science & Technology
Physical Sciences
Chemistry, Physical
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Physics, Applied
Science & Technology - Other Topics
Materials Science
Flow battery
High power
Energy storage
Issue Date: 24-Dec-2021
Publisher: ELSEVIER
Citation: Wang, Xun, Gao, Mengqi, Lee, Yann Mei, Salla, Manohar, Zhang, Feifei, Huang, Songpeng, Wang, Qing (2021-12-24). E-blood: High power aqueous redox flow cell for concurrent powering and cooling of electronic devices. NANO ENERGY 93. ScholarBank@NUS Repository.
Abstract: In personal computing devices and large-scale data centers, a liquid coolant such as water is often employed to keep the devices operating at a low and stable temperature. Simultaneous heat dissipation and power delivery can be achieved by replacing the liquid coolants with electrochemically active redox fluids and integrating a flow cell stack, as the “E-blood” concept proposed by IBM in 2011. Herein, we present a high power aqueous redox flow cell using cerium (Ce) sulfate as posolyte and polyoxometalate (POM) as negolyte. The POM-Ce single cell could achieve an operating voltage of 1.85 V and a power density of 1.40 W/cm2 with unprecedented cycling performance. The cell stack, composed of three single cells, could effortlessly power up a Raspberry Pi and significantly cool down the chip temperature from 51 to 29°C at full loading condition. This work is the first report demonstrating a functional E-blood system that concurrently powers and cools down an electronic device for real operation.
Source Title: NANO ENERGY
ISSN: 2211-2855
DOI: 10.1016/j.nanoen.2021.106864
Appears in Collections:Staff Publications

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