Effect of microporous structure on thermal shrinkage and electrochemical performance of Al2O3/poly(vinylidene fluoride-hexafluoropropylene) composite separators for lithium-ion batteries
作者： Hyun-Seok Jeong , Sung Chul Hong , Sang-Young Lee
DOI: 10.1016/J.MEMSCI.2010.08.012
关键词:
摘要: Abstract In a bid to develop separator with improved thermal shrinkage that critically affects internal short-circuit failures of lithium-ion batteries, we demonstrate new approach, which is based on introducing microporous composite coating layers onto both sides polyethylene (PE) separator. The consist alumina (Al 2 O 3 ) nanoparticles and polyvinylidene fluoride-hexafluoropropylene (PVdF-HFP) gel polymer electrolytes. structure the considered crucial factor governing electrochemical performance separators. determined by controlling phase inversion, specifically solvent–nonsolvent miscibility, in solutions. To quantitatively identify effect three different nonsolvents are chosen decreasing order solubility parameter ( δ difference against solvent (acetone, = 20 MPa 1/2 ), respectively water = 48 MPa butyl alcohol = 29 MPa isopropyl = 24 MPa ). becomes more developed increase not only nonsolvent content but also between acetone nonsolvent. Based this observation, investigate influence morphological variations
elsevier.com
sci-hub.se 参考文章(14)
Marcel Mulder, Basic Principles of Membrane Technology ,(1991)
Kwang Man Kim, Nam-Gyu Park, Kwang Sun Ryu, Soon Ho Chang, Characteristics of PVdF-HFP/TiO2 composite membrane electrolytes prepared by phase inversion and conventional casting methods Electrochimica Acta. ,vol. 51, pp. 5636- 5644 ,(2006) , 10.1016/J.ELECTACTA.2006.02.038
A Subramania, NT Kalyana Sundaram, A Rohini Priya, R Gangadharan, T Vasudevan, None, Preparation of a microporous gel polymer electrolyte with a novel preferential polymer dissolution process for Li-ion batteries Journal of Applied Polymer Science. ,vol. 98, pp. 1891- 1896 ,(2005) , 10.1002/APP.22114
Wang Yi, Zhan Huaiyu, Hu Jian, Liang Yun, Zeng Shushu, Wet-laid non-woven fabric for separator of lithium-ion battery Journal of Power Sources. ,vol. 189, pp. 616- 619 ,(2009) , 10.1016/J.JPOWSOUR.2008.09.078
M. L. Yeow, Y. T. Liu, K. Li, Isothermal phase diagrams and phase-inversion behavior of poly(vinylidene fluoride)/solvents/additives/water systems Journal of Applied Polymer Science. ,vol. 90, pp. 2150- 2155 ,(2003) , 10.1002/APP.12846
Tae-Hyung Cho, Masanao Tanaka, Hiroshi Onishi, Yuka Kondo, Tatsuo Nakamura, Hiroaki Yamazaki, Shigeo Tanase, Tetsuo Sakai, Battery performances and thermal stability of polyacrylonitrile nano-fiber-based nonwoven separators for Li-ion battery Journal of Power Sources. ,vol. 181, pp. 155- 160 ,(2008) , 10.1016/J.JPOWSOUR.2008.03.010
Ganesh Venugopal, John Moore, Jason Howard, Shekhar Pendalwar, Characterization of microporous separators for lithium-ion batteries Journal of Power Sources. ,vol. 77, pp. 34- 41 ,(1999) , 10.1016/S0378-7753(98)00168-2
Daigo Takemura, Shigeru Aihara, Kouji Hamano, Makiko Kise, Takashi Nishimura, Hiroaki Urushibata, Hajimu Yoshiyasu, A powder particle size effect on ceramic powder based separator for lithium rechargeable battery Journal of Power Sources. ,vol. 146, pp. 779- 783 ,(2005) , 10.1016/J.JPOWSOUR.2005.03.159
Yong Min Lee, Jun-Woo Kim, Nam-Soon Choi, Je An Lee, Wan-Ho Seol, Jung-Ki Park, Novel porous separator based on PVdF and PE non-woven matrix for rechargeable lithium batteries Journal of Power Sources. ,vol. 139, pp. 235- 241 ,(2005) , 10.1016/J.JPOWSOUR.2004.06.055
Sven Augustin, Volker Hennige, Gerhard Hörpel, Christian Hying, Ceramic but flexible: new ceramic membrane foils for fuel cells and batteries Desalination. ,vol. 146, pp. 23- 28 ,(2002) , 10.1016/S0011-9164(02)00465-4