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

Abstract

Abstract 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, themore » electrochemical kinetics with Li and 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:
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
OSTI Identifier:
1505434
Alternate Identifier(s):
OSTI ID: 1410378
Grant/Contract Number:  
SC0018074; DE‐SC0018074
Resource Type:
Accepted Manuscript
Journal Name:
Advanced Energy Materials
Additional Journal Information:
Journal Volume: 8; Journal Issue: 8; Journal ID: ISSN 1614-6832
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

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., 2017. 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. https://doi.org/10.1002/aenm.201701918
Ding, Jia, Zhou, Hui, Zhang, Hanlei, Tong, Linyue, and Mitlin, David. Mon . "Selenium Impregnated Monolithic Carbons as Free-Standing Cathodes for High Volumetric Energy Lithium and Sodium Metal Batteries". United States. https://doi.org/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 = {Abstract 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 = {Mon Nov 27 00:00:00 EST 2017},
month = {Mon Nov 27 00:00:00 EST 2017}
}

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Cited by: 117 works
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Figures / Tables:

Figure 1 Figure 1: Schematic highlighting synthesis process for the selenium impregnated NanoCellulose derived Monolithic Carbons (Se–NCMC).

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