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Boron Nitride Nanotube-Based Separator for High-Performance Lithium-Sulfur Batteries

To prevent global warming, ESS development is in progress along with the development of electric vehicles and renewable energy. However, the state-of-the-art technology, i.e., lithium-ion batteries, has reached its limitation, and thus the need for high-performance batteries with improved energy and...

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Autores principales: Kim, Hong-Sik, Kang, Hui-Ju, Lim, Hongjin, Hwang, Hyun Jin, Park, Jae-Woo, Lee, Tae-Gyu, Cho, Sung Yong, Jang, Se Gyu, Jun, Young-Si
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8746311/
https://www.ncbi.nlm.nih.gov/pubmed/35009960
http://dx.doi.org/10.3390/nano12010011
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author Kim, Hong-Sik
Kang, Hui-Ju
Lim, Hongjin
Hwang, Hyun Jin
Park, Jae-Woo
Lee, Tae-Gyu
Cho, Sung Yong
Jang, Se Gyu
Jun, Young-Si
author_facet Kim, Hong-Sik
Kang, Hui-Ju
Lim, Hongjin
Hwang, Hyun Jin
Park, Jae-Woo
Lee, Tae-Gyu
Cho, Sung Yong
Jang, Se Gyu
Jun, Young-Si
author_sort Kim, Hong-Sik
collection PubMed
description To prevent global warming, ESS development is in progress along with the development of electric vehicles and renewable energy. However, the state-of-the-art technology, i.e., lithium-ion batteries, has reached its limitation, and thus the need for high-performance batteries with improved energy and power density is increasing. Lithium-sulfur batteries (LSBs) are attracting enormous attention because of their high theoretical energy density. However, there are technical barriers to its commercialization such as the formation of dendrites on the anode and the shuttle effect of the cathode. To resolve these issues, a boron nitride nanotube (BNNT)-based separator is developed. The BNNT is physically purified so that the purified BNNT (p−BNNT) has a homogeneous pore structure because of random stacking and partial charge on the surface due to the difference of electronegativity between B and N. Compared to the conventional polypropylene (PP) separator, the p−BNNT loaded PP separator prevents the dendrite formation on the Li metal anode, facilitates the ion transfer through the separator, and alleviates the shuttle effect at the cathode. With these effects, the p−BNNT loaded PP separators enable the LSB cells to achieve a specific capacity of 1429 mAh/g, and long-term stability over 200 cycles.
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spelling pubmed-87463112022-01-11 Boron Nitride Nanotube-Based Separator for High-Performance Lithium-Sulfur Batteries Kim, Hong-Sik Kang, Hui-Ju Lim, Hongjin Hwang, Hyun Jin Park, Jae-Woo Lee, Tae-Gyu Cho, Sung Yong Jang, Se Gyu Jun, Young-Si Nanomaterials (Basel) Article To prevent global warming, ESS development is in progress along with the development of electric vehicles and renewable energy. However, the state-of-the-art technology, i.e., lithium-ion batteries, has reached its limitation, and thus the need for high-performance batteries with improved energy and power density is increasing. Lithium-sulfur batteries (LSBs) are attracting enormous attention because of their high theoretical energy density. However, there are technical barriers to its commercialization such as the formation of dendrites on the anode and the shuttle effect of the cathode. To resolve these issues, a boron nitride nanotube (BNNT)-based separator is developed. The BNNT is physically purified so that the purified BNNT (p−BNNT) has a homogeneous pore structure because of random stacking and partial charge on the surface due to the difference of electronegativity between B and N. Compared to the conventional polypropylene (PP) separator, the p−BNNT loaded PP separator prevents the dendrite formation on the Li metal anode, facilitates the ion transfer through the separator, and alleviates the shuttle effect at the cathode. With these effects, the p−BNNT loaded PP separators enable the LSB cells to achieve a specific capacity of 1429 mAh/g, and long-term stability over 200 cycles. MDPI 2021-12-21 /pmc/articles/PMC8746311/ /pubmed/35009960 http://dx.doi.org/10.3390/nano12010011 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kim, Hong-Sik
Kang, Hui-Ju
Lim, Hongjin
Hwang, Hyun Jin
Park, Jae-Woo
Lee, Tae-Gyu
Cho, Sung Yong
Jang, Se Gyu
Jun, Young-Si
Boron Nitride Nanotube-Based Separator for High-Performance Lithium-Sulfur Batteries
title Boron Nitride Nanotube-Based Separator for High-Performance Lithium-Sulfur Batteries
title_full Boron Nitride Nanotube-Based Separator for High-Performance Lithium-Sulfur Batteries
title_fullStr Boron Nitride Nanotube-Based Separator for High-Performance Lithium-Sulfur Batteries
title_full_unstemmed Boron Nitride Nanotube-Based Separator for High-Performance Lithium-Sulfur Batteries
title_short Boron Nitride Nanotube-Based Separator for High-Performance Lithium-Sulfur Batteries
title_sort boron nitride nanotube-based separator for high-performance lithium-sulfur batteries
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8746311/
https://www.ncbi.nlm.nih.gov/pubmed/35009960
http://dx.doi.org/10.3390/nano12010011
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