2020
DOI: 10.1002/aenm.201903642
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Let It Catch: A Short‐Branched Protein for Efficiently Capturing Polysulfides in Lithium–Sulfur Batteries

Abstract: Uncovering the key contributions of molecular details to capture polysulfides is important for applying suitable materials that can effectively restrain the shuttle effect in advanced lithium–sulfur batteries. This is particularly true for natural biomolecules with substantial structural and compositional diversities strongly impacting their functions. Here, natural gelatin and zein proteins are first denatured and then adopted for fabrication of nanocomposite interlayers via functionalization of carbon nanofi… Show more

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Cited by 43 publications
(40 citation statements)
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“…To investigate the effects of the spatial molecular structure of proteins on polysulfide‐trapping, gelatin and zein protein with different amino acid compositions were adopted for the fabrication of conductive interlayers. [ 138 ] As can be seen in Figure 13e, zein contained more long chain amino acids such as Glu, Leu and Phe, while gelatin mainly consisted of short chain amino acids (Gly, Pro, Ala, etc.) The different amino acid compositions led to different side chain structures of the two proteins.…”
Section: Proteins As Components Of Rechargeable Batteriesmentioning
confidence: 99%
See 1 more Smart Citation
“…To investigate the effects of the spatial molecular structure of proteins on polysulfide‐trapping, gelatin and zein protein with different amino acid compositions were adopted for the fabrication of conductive interlayers. [ 138 ] As can be seen in Figure 13e, zein contained more long chain amino acids such as Glu, Leu and Phe, while gelatin mainly consisted of short chain amino acids (Gly, Pro, Ala, etc.) The different amino acid compositions led to different side chain structures of the two proteins.…”
Section: Proteins As Components Of Rechargeable Batteriesmentioning
confidence: 99%
“…Influence of molecule structure to polysulfide‐trapping capability (Reproduced with permission. [ 138 ] Copyright 2020, Wiley‐VCH): e) Weight percentage of primary amino acids of zein and gelatin; f) Simulation results of the number of trapped Li 2 S 4 by proteins verses time; g) Cycle stability and Coulombic efficiency batteries with gelatin/carbon nanofiber (CNF) and zein/CNF interlayers.…”
Section: Proteins As Components Of Rechargeable Batteriesmentioning
confidence: 99%
“…Through the strong affinity of carbonyl groups towards Li 2 S x , SAA delivered 576 mA h g −1 at 0.5 C after 100 cycles, corresponding 152 mA h g −1 more than unmodified gelatin based sulfur cathode. Chen et al . destroyed the secondary and higher level structures of two proteins (gelatin and zein) and obtained two random polypeptide chains, which were dominated by short sidechains (denatured gelatin) or long sidechains (denatured zein).…”
Section: Ecofriendly Functional Bindersmentioning
confidence: 99%
“…employed a short‐branched protein as a functional binder additive to adsorb PSs and obtained high sulfur loading. [ 80 ] The binding sites could be opened up by the short‐branched residues derived from gelatin, entrapping the PSs in a “molecular cage,” while only a small amount of PSs was absorbed by the long‐branched residues derived from zein ( Figure a,b). Owing to the high PS‐capturing ability, the short‐branched gelatin could be used as a functional binder additive for the cathodes to achieve high sulfur loading (Figure 2c).…”
Section: High‐performance Alkali Metal–chalcogen Batteries Achieved Bmentioning
confidence: 99%
“…Reproduced with permission. [ 80 ] Copyright 2020, Wiley‐VCH GmbH. Electrochemical performances of high‐loading sulfur cathodes with proteins as the functional additives.…”
Section: High‐performance Alkali Metal–chalcogen Batteries Achieved Bmentioning
confidence: 99%