Hexagonal boron nitride effect on the performance of graphene-based lithium–sulfur batteries and its stability at elevated temperatures

Chemical vapor deposition (CVD) of boron nitride (BN) is most readily performed using BCl3 and NH3, which are brought into the deposition zone through two separate tubes. This causes some problems: inadequate mixing leading to a nonuniform deposit, formation of solid intermediates, etc. To avoid these problems, the process was performed by mixing BCl3 and NH3 at elevated temperatures (120–220 °C) prior to entering the deposition zone. The reaction between them took place by the forming of volatile stoichiometric B–N compounds (trichloroborazine and iminochloroborane), which were then transported through a single tube into a deposition zone. The resulting deposit was found to be hexagonal boron nitride.

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A thermo‐stable poly(propylene carbonate)‐based composite separator for lithium‐sulfur batteries under elevated temperatures

International Journal of Energy Research ◽

10.1002/er.5651 ◽

2020 ◽

Vol 44 (13) ◽

pp. 10295-10306

Author(s):

Huijia Huang ◽

Changjiang Zhao ◽

Fei Ding ◽

Huan Li ◽

Shuoqing Zhang ◽

...

Keyword(s):

Propylene Carbonate ◽

Elevated Temperatures ◽

Lithium Sulfur Batteries ◽

Composite Separator ◽

Poly Propylene ◽

Lithium Sulfur

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Thermal Conductive 2D Boron Nitride for High‐Performance All‐Solid‐State Lithium–Sulfur Batteries

Advanced Science ◽

10.1002/advs.202001303 ◽

2020 ◽

Vol 7 (19) ◽

pp. 2001303

Author(s):

Xuesong Yin ◽

Liu Wang ◽

Yeongae Kim ◽

Ning Ding ◽

Junhua Kong ◽

...

Keyword(s):

Solid State ◽

Boron Nitride ◽

High Performance ◽

Lithium Sulfur Batteries ◽

Lithium Sulfur

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Rapid, high-efficient and scalable exfoliation of high-quality boron nitride nanosheets and their application in lithium-sulfur batteries

Nano Research ◽

10.1007/s12274-020-3245-3 ◽

2020 ◽

Author(s):

Yu Chen ◽

Qi Kang ◽

Pingkai Jiang ◽

Xingyi Huang

Keyword(s):

Boron Nitride ◽

High Quality ◽

Boron Nitride Nanosheets ◽

High Efficient ◽

Lithium Sulfur Batteries ◽

Lithium Sulfur

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Tribology in Superplastic Forming Processing of 3Y-TZP/Al2O3 Ceramic at Elevated Temperatures

Materials Science Forum ◽

10.4028/www.scientific.net/msf.551-552.507 ◽

2007 ◽

Vol 551-552 ◽

pp. 507-512

Author(s):

F. Wang ◽

Kai Feng Zhang ◽

Wen Bo Han

Keyword(s):

High Pressure ◽

Boron Nitride ◽

Friction Factor ◽

Elevated Temperatures ◽

Hexagonal Boron Nitride ◽

Superplastic Forming ◽

Ceramic Materials ◽

Cubic Phase ◽

X Ray Diffraction ◽

Higher Temperature

Superplastic forming processing of ceramic materials at high temperatures and high pressure puts forward very high requests to moulds and lubricants, at which conditions seeking for appropriate lubricants is one of important preconditions in the superplastic forming of ceramic materials. Using ring compressive testing, lubricities of hexagonal boron nitride in superplastic compressive forming processing of 3Y-TZP/Al2O3 ceramic composite at elevated temperatures were investigated. Theoretical curves of friction factor were drawn according to upper bound method. Ring compressive tests were adopted at temperature of 1400 °C-1600 °C. The results indicate that when BN is used, friction factor is about 0.4, meanwhile friction factor don’t have great changes with higher temperature and increasing strain rate. X-ray diffraction shows that under high temperature and high pressure no boron nitride converts to cubic phase, which remains at room temperature.

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