boron nitride nanotube
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Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 11
Author(s):  
Hong-Sik Kim ◽  
Hui-Ju Kang ◽  
Hongjin Lim ◽  
Hyun Jin Hwang ◽  
Jae-Woo Park ◽  
...  

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.


Nano Energy ◽  
2021 ◽  
pp. 106886
Author(s):  
Jaeho Shim ◽  
Dong Ick Son ◽  
Joo Song Lee ◽  
Jaehyeon Lee ◽  
Guh-Hwan Lim ◽  
...  

ACS Omega ◽  
2021 ◽  
Author(s):  
Keun Su Kim ◽  
Gabriela Sigouin ◽  
Hyunjin Cho ◽  
Martin Couillard ◽  
Mary Gallerneault ◽  
...  

2021 ◽  
Vol 24 (2) ◽  
pp. 291-304
Author(s):  
Mohsen Doust Mohammadi ◽  
Hewa Y. Abdullah ◽  
George Biskos ◽  
Somnath Bhowmick

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