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Research on Preparation of Bacterial Cellulose/Ketjen Black Composite Membrane and Inhibition of Shuttle Effect in Li-S Batteries
Received:July 14, 2022  
DOI：10.11980/j.issn.0254-508X.2023.01.001
Key Words:lithium-sulfur battery  shuttle effect  bacterial cellulose  ketjen black
Author NameAffiliationPostcode
YAN Ming* State Key Lab of Bio-based Materials and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353）
com 		250353
ZHAO Chuanshan State Key Lab of Bio-based Materials and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353）
com 		250353
LI Xia State Key Lab of Bio-based Materials and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353）
com 		250353
LI Hui State Key Lab of Bio-based Materials and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353）
com 		250353
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Abstract:Ketjen black （KB） was coated on the green， environmental and biodegradable bacterial cellulose （BC） membrane to obtain the bacterial cellulose/ketjen black composite （BCK） membrane. The results showed that the BCK membrane combined the characteristics of small pore diameter and layered structure of BC membrane， large specific surface area and excellent conductivity of KB. It had not only excellent thermal stability and good electrolyte wettability， but also a good inhibition on the shuttle effect of lithium sulfur battery. The initial specific capacity of BCK based battery at current density of 0.1 C was 1362 mA·h/g， which was much higher than the initial specific capacity （958 mA·h/g） of polypropylene （PP） based battery. The discharge specific capacity of BCK based battery was still higher than that of PP based battery after 100 cycles.
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