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Title: Selenium Impregnated Monolithic Carbons as Free-Standing Cathodes for High Volumetric Energy Lithium and Sodium Metal Batteries

Energy density (energy per volume) is a key consideration for portable, automotive, and stationary battery applications. Selenium (Se) lithium and sodium metal cathodes are created that are monolithic and free-standing, and with record Se loading of 70 wt%. The carbon host is derived from nanocellulose, an abundant and sustainable forestry product. The composite is extremely dense (2.37 g cm -3), enabling theoretical volumetric capacity of 1120 mA h cm -3. Such architecture is fully distinct from previous Se–carbon nano- or micropowders, intrinsically offering up to 2× higher energy density. For Li storage, the cathode delivers reversible capacity of 1028 mA h cm -3 (620 mA h g -1) and 82% retention over 300 cycles. For Na storage, 848 mA h cm -3 (511 mA h g -1) is obtained with 98% retention after 150 cycles. The electrodes yield superb volumetric energy densities, being 1727 W h L -1 for Li–Se and 980 W h L -1 for Na–Se normalized by total composite mass and volume. Despite the low surface area, over 60% capacity is maintained as the current density is increased from 0.1 to 2 C (30 min charge) with Li or Na. Remarkably, the electrochemical kinetics with Li andmore » Na are comparable, including the transition from interfacial to diffusional control.« less
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2]
  1. State Univ. of New York (SUNY), Binghamton, NY (United States). Chemistry and Materials
  2. Clarkson Univ., Potsdam, NY (United States). Chemical & Biomolecular Engineering and Mechanical Engineering
Publication Date:
Grant/Contract Number:
SC0018074
Type:
Accepted Manuscript
Journal Name:
Advanced Energy Materials
Additional Journal Information:
Journal Volume: 8; Journal Issue: 8; Journal ID: ISSN 1614-6832
Publisher:
Wiley
Research Org:
Clarkson Univ., Potsdam, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE
OSTI Identifier:
1505434
Alternate Identifier(s):
OSTI ID: 1410378

Ding, Jia, Zhou, Hui, Zhang, Hanlei, Tong, Linyue, and Mitlin, David. Selenium Impregnated Monolithic Carbons as Free-Standing Cathodes for High Volumetric Energy Lithium and Sodium Metal Batteries. United States: N. p., Web. doi:10.1002/aenm.201701918.
Ding, Jia, Zhou, Hui, Zhang, Hanlei, Tong, Linyue, & Mitlin, David. Selenium Impregnated Monolithic Carbons as Free-Standing Cathodes for High Volumetric Energy Lithium and Sodium Metal Batteries. United States. doi:10.1002/aenm.201701918.
Ding, Jia, Zhou, Hui, Zhang, Hanlei, Tong, Linyue, and Mitlin, David. 2017. "Selenium Impregnated Monolithic Carbons as Free-Standing Cathodes for High Volumetric Energy Lithium and Sodium Metal Batteries". United States. doi:10.1002/aenm.201701918. https://www.osti.gov/servlets/purl/1505434.
@article{osti_1505434,
title = {Selenium Impregnated Monolithic Carbons as Free-Standing Cathodes for High Volumetric Energy Lithium and Sodium Metal Batteries},
author = {Ding, Jia and Zhou, Hui and Zhang, Hanlei and Tong, Linyue and Mitlin, David},
abstractNote = {Energy density (energy per volume) is a key consideration for portable, automotive, and stationary battery applications. Selenium (Se) lithium and sodium metal cathodes are created that are monolithic and free-standing, and with record Se loading of 70 wt%. The carbon host is derived from nanocellulose, an abundant and sustainable forestry product. The composite is extremely dense (2.37 g cm-3), enabling theoretical volumetric capacity of 1120 mA h cm-3. Such architecture is fully distinct from previous Se–carbon nano- or micropowders, intrinsically offering up to 2× higher energy density. For Li storage, the cathode delivers reversible capacity of 1028 mA h cm-3 (620 mA h g-1) and 82% retention over 300 cycles. For Na storage, 848 mA h cm-3 (511 mA h g-1) is obtained with 98% retention after 150 cycles. The electrodes yield superb volumetric energy densities, being 1727 W h L-1 for Li–Se and 980 W h L-1 for Na–Se normalized by total composite mass and volume. Despite the low surface area, over 60% capacity is maintained as the current density is increased from 0.1 to 2 C (30 min charge) with Li or Na. Remarkably, the electrochemical kinetics with Li and Na are comparable, including the transition from interfacial to diffusional control.},
doi = {10.1002/aenm.201701918},
journal = {Advanced Energy Materials},
number = 8,
volume = 8,
place = {United States},
year = {2017},
month = {11}
}

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