Fabrication and Performance of PET-ceramic Separators

doi:10.15541/jim20160159

Abstract

Abstract:

Ceramic-coating separators were prepared with poly(ethylene terephthalate) (PET) nonwoven membrane as the substrate. Different particle sizes and variable ratios of SiO₂ and Al₂O₃ were coated on the PET surface by dip coating technology, using PVDF-HFP as the binder. The separators took advantage of both kinds of ceramic particles, so that the big pores of PET were filled more effectively. Surface morphology, porosity, electrolyte wettability, thermal stability, ionic conductivity, and electrochemical impedance spectroscope (EIS) of composite separators with different ratios of SiO₂to Al₂O₃ were systematically investigated, and separators with ratio of SiO₂/Al₂O₃=3/7 showed superior performance. Electrochemical properties of MCMB / LiNi_1/3Co_1/3Mn_1/3O₂2025-type coin cells assembled by the ceramic separators with ratio of SiO₂/Al₂O₃=3/7 were also tested, as compared with commercialized PP separators. The results demonstrated that the ceramic separators performed with 93.9% capacity retention after 100 cycles and capacity of 82.7 mAh/g at 10C rate, better than PP separators.

Key words: PET, ceramic separator, thermal stability, electrochemical properties

CLC Number:

TM912

XIE Xiao-Hua, LI Xiao-Zhe, LI Wei-Biao, SHAO Guang-Jie, XIA Bao-Jia. Fabrication and Performance of PET-ceramic Separators[J]. Journal of Inorganic Materials, 2016, 31(12): 1301-1305.

Figures/Tables 7

Fig. 1 SEM images of PET-ceramic separator^(a) S-0; (b) S-1; (c) S-2; (d) S-3; (e) S-4

Fig. 2 Porosity (a), electrolyte wettability (b), ionic conductivity (c) of PET-ceramic separator and PP separator

Fig. 3 Thermal stability of S-1 separator and PP separator

Fig. 4 LSV curves of S-1 separator and PP separator

Fig. 5 Self-discharge curves of cells fabricated with S-1 separator and PP separator

Fig. 6 Rate capacity (a) and cycle performance (b) of cells fabricated with S-1 separator and PP separator

Fig. 7 Electrochemical impedance spectroscopy of cells fabricated with S-1 separator and PP separator

References 10

[1]	SHIN W K, KIM D W.High performance ceramic-coated separators prepared with lithium ion-containing SiO2 particles for lithium-ion batteries.J. Power Sources, 2013, 226: 54-60.
[2]	FU D, LUAN B, ARUGE S,et al. Nano SiO2 particle formation and deposition on polypropylene separators for lithium-ion batteries. J. Power Sources, 2012, 206: 325-333.
[3]	JEONG H S, CHOI E S, LEE S Y.Composition ratio-dependent structural evolution of SiO2/poly (vinylidene fluoride-hexafluoropropylene)-coated poly(ethylene terephthalate) nonwoven composite separators for lithium-ion batteries. Electrochimica Acta, 2012, 86: 317-322.
[4]	JEONG H S, HONGS C, LEE S Y.Effect of microporousstructure on thermal shrinkage and electrochemical performance of Al2O3 poly (vinylidene fluoride-hexafluoropropylene) composite separators for lithium-ion batteries.J. Membrane Science, 2010, 364(1/2): 177-182.
[5]	LEE J, LEE C L, PARK K,et al. Synthesis of an Al2O3-coated polyimide nanofiber mat and its electrochemical characteristics as a separator for lithium ion batteries. J. Power Sources, 2014, 248: 1211-1217.
[6]	LEE Y S, JEONG Y B, KIM D W.Cycling performance of lithium- ion batteries assembled with a hybrid composite membrane prepared by an electrospinning method.J. Power Sources, 2010, 195(18): 6197-6201.
[7]	Orendorff C J.The role of separators in lithium ion cell safety.The Electrochemical society interface, 2012, 21(2): 61-65.
[8]	CHO J H, PARK J H, KIM J H,et al. Facile fabrication of nanoporous composite separator membranes for lithium-ion batteries: poly (methyl methacrylate) colloidal particles-embedded nonwoven poly (ethylene terephthalate). J. Mater. Chem., 2011, 21:8192-8196.
[9]	LIANG X, YANG Y, JIN X,et al. The high performances of SiO2/Al2O3-coated electrospun polyimide fibrous separator for lithium-ion battery. J. Membr. Sci., 2015, 493: 1-7.
[10]	LI J, ZHANG J, ZHANG X G,et al. Study of the storage performance of a Li-ion cell at elevated temperature. Electrochimica Acta, 2010, 55: 927-934.

[1]	MIAO Xin, YAN Shiqiang, WEI Jindou, WU Chao, FAN Wenhao, CHEN Shaoping. Interface Layer of Te-based Thermoelectric Device: Abnormal Growth and Interface Stability [J]. Journal of Inorganic Materials, 2024, 39(8): 903-910.
[2]	XIAO Yani, LYU Jianan, LI Zhenming, LIU Mingyang, LIU Wei, REN Zhigang, LIU Hongjing, YANG Dongwang, YAN Yonggao. Hygrothermal Stability of Bi₂Te₃-based Thermoelectric Materials [J]. Journal of Inorganic Materials, 2023, 38(7): 800-806.
[3]	LI Yue, ZHANG Xuliang, JING Fangli, HU Zhanggui, WU Yicheng. Growth and Property of Ce³⁺-doped La₂CaB₁₀O₁₉ Crystal [J]. Journal of Inorganic Materials, 2023, 38(5): 583-588.
[4]	WAN Jiabao, ZHANG Minghui, SU Huaiyu, CAO Zhijun, LIU Xuechao, XIE Jiansheng, WANG Xiangyuan, SHI Yinghui, WANG Liang, LEI Shuijin. Structural, Thermal, and Optical Properties of GeO₂-La₂O₃-TiO₂ Glasses [J]. Journal of Inorganic Materials, 2023, 38(10): 1230-1236.
[5]	ZHAO Chaofeng, JIN Jiaren, HUO Yingzhong, SUN Lu, AI Yuejie. Adsorption of Phenolic Organic Pollutants on Graphene Oxide: Molecular Dynamics Study [J]. Journal of Inorganic Materials, 2020, 35(3): 277-283.
[6]	Xiao-Jing FENG, Gong-Kai WANG, Xiao-Ran WANG, Jun HE, Xin WANG, Hui-Fen PENG. Electrochemical Property of Cr ³⁺ Doped LiSn₂(PO₄)₃ Anode Material [J]. Journal of Inorganic Materials, 2019, 34(4): 358-364.
[7]	LIU Ding, YU Yang, MI Le, YU Yun, SONG Li-Xin. Preparation of Room Temperature Curable Organic-inorganic Hybrid Thermal Control Coatings [J]. Journal of Inorganic Materials, 2018, 33(8): 914-918.
[8]	FAN Guang-Xin, LIU Ze-Ping, WEN Yin, LIU Bao-Zhong. Surface Treatment on Structure and Property of LiNi_0.8Co_0.15Al_0.05O₂ by Silane Coupling Agent [J]. Journal of Inorganic Materials, 2018, 33(7): 749-755.
[9]	WANG Hao, LUO Yong-Chun, DENG An-Qiang, ZHAO Lei, JIANG Wan-Ting. Annealing Temperature on Structural and Electrochemical Property of Mg-free La-Y-Ni Based A₂B₇-type Hydrogen Storage Alloys [J]. Journal of Inorganic Materials, 2018, 33(4): 434-440.
[10]	YANG Jing-Feng, WANG Qi-Hua, WANG Ting-Mei. Synthesis and Property of Alumina Aerogel [J]. Journal of Inorganic Materials, 2018, 33(3): 259-265.
[11]	ZHANG Heng-Fei, LIU Wei, LEI Jiao-Jiao, SONG Hua-Ting, QI Hong. Pd Doping on H₂/CO₂ Separation Performance and Hydrothermal Stability of Organic-inorganic Hybrid SiO₂ Membranes [J]. Journal of Inorganic Materials, 2018, 33(12): 1316-1322.
[12]	ZENG Yan-Fei, XIN Guo-Xiang, BULIN Chao-Ke, ZHANG Bang-Wen. One-step Preparation and Electrochemical Performance of 3D Reduced Graphene Oxide/NiO as Supercapacitor Electrodes Materials [J]. Journal of Inorganic Materials, 2018, 33(10): 1070-1076.
[13]	WANG Mi-Tang, FANG Long, LI Mei, LIU Zhao-Gang, HU Yan-Hong, ZHANG Xiao-Wei. Effect of Rare Earth Dopant on Thermal Stability and Structure of ZnO-B₂O₃-SiO₂ Glass [J]. Journal of Inorganic Materials, 2017, 32(6): 643-648.
[14]	LONG Pei-Qing, LIU Xi-Tao, YI Zhi-Guo. Effect of Sintering Process on Microstructure and Properties of Ba_0.85Ca_0.15)(Ti_0.9Zr_0.1)O₃Lead-free Ceramics [J]. Journal of Inorganic Materials, 2017, 32(3): 299-304.
[15]	GAO Xin, LIU Xiang-Xuan, ZHU Zuo-Ming, XIE Zheng, SHE Zhao-Bin. Photoelectrochemical and Photocatalytic Properties of NiFe₂O₄/TiO₂ Nanorod Arrays [J]. Journal of Inorganic Materials, 2016, 31(9): 935-942.