進化した電池のための熱スイッチ機能付きナノ多孔質ＢＮＮＴ複合材

Japanese Patent JP6971244

B2

Thermoresponsive composite switch (TRCS) membranes for ion batteries include a porous scaffolding providing ion channels and a thermoresponsive polymer coating. Boron nitride nanotube (BNNT)/polymer composite TRCS membrane embodiments are preferable due to unique BNNT properties. A BNNT scaffold coated with one or more polymers may form a composite separator with tunable porosity (porosity level and pore size distribution), composition, wettability, and superior electronic isolation, oxidative/reduction resistance, and mechanical strength. The BNNT/polymer composite TRCS membrane optimizes the performance of ion batteries with tunable separator thicknesses that may be under 5 μιη. Nano-scale porosity with thin separator thicknesses improves the charge density of the battery. Nano-scale architecture allows for reversible localized switching on the nano scale, in proximity to thermally stressed ion substrates. Polymer thermal expansion will decrease porosity at temperatures approaching the thermal runaway point. The BNNT polymers composite therefore functions as a TRCS.

WO/2009/096671	SEPARATOR FOR PROGRESSING UNITED FORCE TO ELECTRODE AND ELECTROCHEMICAL CONTAINING THE SAME
WO/2023/037989	SEPARATOR FOR NONAQUEOUS SECONDARY BATTERY, AND NONAQUEOUS SECONDARY BATTERY
WO/2023/189725	SECONDARY BATTERY

Dashatinski, Thomas Giy
Gvary S, Hvard
Whitney, Earl Roy
Kevin Shii, Jordan
Pedrazoli, Diego
Smith, Michael W
Stevens, Jonathan Shii

JP2018540472A

November 24, 2021

February 02, 2017

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BNT

H01M50/451; H01M50/403; H01M50/414; H01M50/417; H01M50/42; H01M50/423; H01M50/426; H01M50/429; H01M50/431; H01M50/434; H01M50/446; H01M50/454; H01M50/491

JP2015529933A
JP2009256534A

Shigeki Yamakawa
Masaki Yamakawa

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