A Flexible Multifunctional Cyanoethyl-Modified Bacterial Cellulose Nanofiber Framework for High-Energy and High-Power Density Aqueous Li-Ion Batteries

Zhang, Long1; Ma, Tao1; Zhou, Peng-Hu1; Yang, Yi-Wen1; Lu, Lei-l.1; Hu, Bi-Cheng1; Yu, Shu-Hong1,2

2024-09-01

10.1002/smll.202404452

SMALL   影响因子和分区

1613-6810

1613-6829

["Aqueous rechargeable lithium-ion batteries (ARLIBs) are extensively researched due to their inherent safety, typical affordability, and potential high energy density. However, fabricating ARLIBs with both high energy density and power performance remains challenging. Herein, based on cyanoethyl-modified bacterial cellulose nanofibers (CBCNs), a multifunctional fast ion transport framework is developed to construct the flexible free-standing ARLIBs with high areal loading and excellent rate performance. Benefiting from the unique merits of CBCNs, such as ultra-high aspect ratio, excellent toughness, superior adhesion, good lithiophilicity and ideal stability, the flexible free-standing and highly robust electrodes are fabricated and exhibit a long-term stable cycling of 1200 cycles with a high specific capacity of 117 mAh center dot g-1 at 15 C. Remarkably, the corresponding full cell with the free-standing high mass loading (45.5 mg center dot cm-2) electrodes under the condition of ultra-low addition of battery binder demonstrates a cycle lifespan of over 1000 cycles with a specific capacity of 120 mAh center dot g-1 and a capacity decay as low as 0.03% per cycle, which is far superior to those of almost all previous reports. This work provides a strategy for constructing ARLIBs with high energy density and power performance by introducing a unique fast ion transport nanofiber framework.","A new type of cyanoethyl-modified bacterial cellulose nanofibers (CBCNs) is developed as a multifunctional binder framework to construct the flexible free-standing ultra-thick electrode for ARLIBs. Owing to the ultra-high aspect ratio, excellent adhesion, good lithiophilicity, and intrinsic non-swelling for CBCNs, the corresponding CBCN-based electrodes with high areal loading exhibit excellent rate capability. image"]

aqueous battery bacterial cellulose, multifunctional framework rate performance thick electrode

SCI

英语

通讯

Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0450402] ; National Natural Science Foundation of China["22293044","U1932213"] ; Major Basic Research Project of Anhui Province[2023z04020009] ; null[2018YFE0202201] ; null[2021YFA0715700]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001307828200001

WILEY-V C H VERLAG GMBH

Web of Science

1.Univ Sci & Technol China, Inst Biomimet Mat & Chem, Hefei Natl Res Ctr Phys Sci Microscale, Dept Chem,New Cornerstone Sci Lab,Anhui Engn Lab B, Hefei 230026, Peoples R China
2.Southern Univ Sci & Technol, Inst Innovat Mat, Dept Mat Sci & Engn, Dept Chem, Shenzhen 518055, Peoples R China

Zhang, Long,Ma, Tao,Zhou, Peng-Hu,et al. A Flexible Multifunctional Cyanoethyl-Modified Bacterial Cellulose Nanofiber Framework for High-Energy and High-Power Density Aqueous Li-Ion Batteries[J]. SMALL,2024.

Zhang, Long.,Ma, Tao.,Zhou, Peng-Hu.,Yang, Yi-Wen.,Lu, Lei-l..,...&Yu, Shu-Hong.(2024).A Flexible Multifunctional Cyanoethyl-Modified Bacterial Cellulose Nanofiber Framework for High-Energy and High-Power Density Aqueous Li-Ion Batteries.SMALL.

Zhang, Long,et al."A Flexible Multifunctional Cyanoethyl-Modified Bacterial Cellulose Nanofiber Framework for High-Energy and High-Power Density Aqueous Li-Ion Batteries".SMALL (2024).