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UNIST to operative next-generation intelligent separator membranes


A group of Korean researchers, dependent with UNIST is receiving a media spotlight as they have due a immature element plan for a growth of intelligent battery separators over a stream state-of-the-art counterparts.

The commentary seem in a Jul 6th emanate of Nano Letters, co-authored by Prof. Sang-Young Lee (School of Energy and Chemical Engineering), Prof. Byeong-Su Kim (School of Natural Science), a lead authors of a investigate Jung-Hwan Kim (School of Energy and Chemical Engineering) and Minsu Gu (School of Energy and Chemical Engineering), and 4 others.

In a study, a investigate group presented a new category of battery seperator formed on a hierarchical/asymmetric porous structure of a heterolayered nanomat (“c-mat separator”), as an rare surface event to capacitate conspicuous advances in dungeon opening distant over those permitted with required battery separators.

Among vital battery components, separator membranes have not been a core of courtesy compared to other electrochemically active materials, notwithstanding their critical roles in permitting ionic upsurge and preventing electrical hit between electrodes. This investigate introduces novel chemical functionalities to seperator membranes, thereby bringing rare advantages to battery performance.

The c-mat separator consisted of a skinny nanoporous TPY-CNF pad as a tip covering and a thick macroporous electrospun PVP/PAN pad as a support layer. According to a investigate team, in further to a aforementioned constructional uniqueness, another distinct underline of a c-mat separator is a aloft ion conductivity compared with a existent PP/PE/PP separators.

“This ground-breaking find will pave a approach towards subsequent era lithium-ion batteries, exhibiting significantly extended opening and increasing appetite efficiency,” says JungHwan Kim, a lead author on a study.

The investigate group noted, “We prognosticate that a c-mat separator, benefiting from a constructional aberration and chemical functionalities, will open a new trail for a growth of high-performance intelligent separator membranes for intensity use in next-generation energy sources and in permselective surface filtration systems for high mass flux/removal of heavy-metal ions.”


This work has been upheld by a Basic Science Research Program by a National Research Foundation of Korea (NRF) saved by a Korean Ministry of Science, ICT and Future Planning (MSIP). It has been also upheld by a Industrial Technology Innovation Program 2015, saved by a Korean Ministry of Trade, Industry Energy (MOTIE).

Journal Reference:

Jung-Hwan Kim, Minsu Gu, Do Hyun Lee, Jeong-Hoon Kim, Yeon-Su Oh, Sa Hoon Min, Byeong-Su Kim, and Sang-Young Lee, “Functionalized Nanocellulose-Integrated Heterolayered Nanomats toward Smart Battery Separators.” Nano Lett., (2016).