| Literature DB >> 31501346 |
Hyeokjo Gwon1, Kitae Park2, Soon-Chun Chung3, Ryoung-Hee Kim1, Jin Kyu Kang2, Sang Min Ji1, Nag-Jong Kim3, Sunghaeng Lee3, Jun-Hwan Ku1, Eun Cheol Do4, Sujin Park3, Minsang Kim4, Woo Yong Shim3, Hong Soon Rhee3, Jae-Young Kim3, Jieun Kim3, Tae Yong Kim3, Yoshitaka Yamaguchi5, Ryo Iwamuro5, Shunsuke Saito5, Gahee Kim4, In-Sun Jung4, Hyokeun Park4, Chanhee Lee4, Seungyeon Lee4, Woo Sung Jeon4, Woo Dae Jang6, Hyun Uk Kim6, Sang Yup Lee6, Dongmin Im1, Seok-Gwang Doo4, Sang Yoon Lee4, Hyun Chul Lee7, Jin Hwan Park8.
Abstract
Bacterial cellulose nanofiber (BCNF) with high thermal stability produced by an ecofriendly process has emerged as a promising solution to realize safe and sustainable materials in the large-scale battery. However, an understanding of the actual thermal behavior of the BCNF in the full-cell battery has been lacking, and the yield is still limited for commercialization. Here, we report the entire process of BCNF production and battery manufacture. We systematically constructed a strain with the highest yield (31.5%) by increasing metabolic flux and improved safety by introducing a Lewis base to overcome thermochemical degradation in the battery. This report will open ways of exploiting the BCNF as a "single-layer" separator, a good alternative to the existing chemical-derived one, and thus can greatly contribute to solving the environmental and safety issues.Entities:
Keywords: bacterial cellulose; cellulose separator; gene engineering; lithium batteries
Year: 2019 PMID： 31501346 PMCID： PMC6765254 DOI： 10.1073/pnas.1905527116
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205