@article{d640060d0be74ff08be2dac10823e31d,
title = "Binder-less chemical grafting of SiO2 nanoparticles onto polyethylene separators for lithium-ion batteries",
abstract = "Silica nanoparticles were chemically grafted onto a porous polyethylene separator to improve the adhesion strength, thermal stability, and electrochemical performance of a polyolefin separator. A surface activation via UVO plasma treatment, followed by silane hybridization yielded a polymeric binder-free, thin coating of SiO2 nanoparticles onto the separator. The chemical grafting provided a much stronger adhesive strength (> 2.5 N/cm), reduced thermal shrinkage (< 5% at 120 °C), and higher ionic conductivity (0.84 mS/cm) than conventional physical coating of a ceramic particle-based polymer composite. Lithium-ion batteries fabricated with metallic lithium as the anode, a LiFePO4 (LFP) cathode and SiO2-grafted separator showed an excellent rate capability (68 mAh/g at 5 C) and cycling performance (143 mAh/g after 200 cycles).",
keywords = "Chemical grafting, Lithium-ion battery, Separator, Silica nanoparticle",
author = "Wonjun Na and Koh, {Ki Hwan} and Lee, {Albert S.} and Sangho Cho and Byoeri Ok and Hwang, {Suk Won} and Lee, {Jin Hong} and Koo, {Chong Min}",
note = "Funding Information: This work was financially supported by a grant from the Basic Science Research Program ( 2017R1A2B3006469 ) through the National Research Foundation of Korea funded by the Ministry of Science, ICT, and Future Planning, and the Fundamental R&D Program ( 10077545 ) for Core Technology of Materials, and Industrial Strategic Technology Development Program funded by the Ministry of Knowledge Economy, Republic of Korea . Partial funding was given by the Materials Architecturing Research Center of Korea Institute of Science and Technology ( KIST ) and KU-KIST graduate school of Korea University. Funding Information: This work was financially supported by a grant from the Basic Science Research Program (2017R1A2B3006469) through the National Research Foundation of Korea funded by the Ministry of Science, ICT, and Future Planning, and the Fundamental R&D Program (10077545) for Core Technology of Materials, and Industrial Strategic Technology Development Program funded by the Ministry of Knowledge Economy, Republic of Korea. Partial funding was given by the Materials Architecturing Research Center of Korea Institute of Science and Technology (KIST) and KU-KIST graduate school of Korea University. Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",
year = "2019",
month = mar,
day = "1",
doi = "10.1016/j.memsci.2018.12.039",
language = "English",
volume = "573",
pages = "621--627",
journal = "Jornal of Membrane Science",
issn = "0376-7388",
publisher = "Elsevier",
}
