Carbon-based artificial SEI layers for aqueous lithium-ion battery anodes

Subramanya, Usha; Chua, Charleston; Leong, Victor Gin He; Robinson, R.S.; Cabiltes, Gwenlyn Angel Cruz; Singh, P.; Yip, Bonnie; Bokare, Anuja; Erogbogbo, Folarin; Oh, Dahyun

doi:10.1039/c9ra08268a

Cited by 24 publications

(11 citation statements)

References 47 publications

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“…The best battery performance achieved with m-TiO 2 electrodes was comparable to the battery performance obtained with the carbon-coated TiO 2 electrodes made of glucose (Figure S12) 22 but using 11% less carbon in the composite. One of the most obvious characteristics of this microbe-derived carbon layer is a high concentration of nitrogen, corresponding to a peak at 398.58 eV from XPS N 1s spectra.…”

Section: ■ Results and Discussionmentioning

confidence: 56%

“…Furthermore, it has been reported that the SEI layers on TiO 2 particles in WIS-based LIBs were made of disconnected arrays of inorganic nanoparticles [mostly lithium fluoride (LiF) and a little amount of lithium carbonate (Li 2 CO 3 ) and lithium oxide (Li 2 O)], requiring a conformal protective coating to minimize the access of free water molecules . Surface coatings on anode particles with carbon layers, highly fluorinated ether, or aluminum oxide (Al 2 O 3 ) were reported to be effective in improving the cycle life of WIS-based LIBs by suppressing HER. ,− Here, we report the enhanced performance of WIS-based LIBs by forming carbonaceous layers on TiO 2 (here, we call this as m-TiO 2 ) using biomaterials for the first time in the field. Direct interactions between TiO 2 nanoparticles and microbes have been investigated to determine the photocatalytic antimicrobial/antiviral activities of TiO 2 , , but the application of this composite in aqueous LIBs has not been explored in the field to the best of our knowledge.…”

Section: Introductionmentioning

confidence: 99%

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Microbe-Assisted Nanocomposite Anodes for Aqueous Li-Ion Batteries

Weng

Gooyandeh

Tariq

et al. 2021

ACS Appl. Mater. Interfaces

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With the rapid increase in the use of lithium-ion batteries (LIBs), the development of safe LIBs has become an important social issue. Replacing flammable organic liquid electrolytes in current LIBs with water can be an alternative route to resolve this safety concern. The waterin-salt (WIS) electrolytes received great attention as next-generation electrolytes due to their large electrochemical stability window. However, their high cathodic limit remains as a challenge, impeding the use of lowpotential anodes. Here, we report the first biodirected synthesis of carbonaceous layers on anodes to use them as interlayers that prevent a direct contact of water molecules to anode particles. Highaspect ratio microbes are utilized as precursors of carbonaceous layers on TiO 2 nanoparticles (m-TiO 2 ) to enhance the conductivity and to reduce the electrolysis of WIS electrolytes. We selected the cylindrical shape of microbes that offers geometric diversity, providing us a toolkit to investigate the effect of microbe length in forming the network in binary composites and their impacts on the battery performance with WIS electrolytes. Using microbes with varying aspect ratios, the optimal microbe size to maximize the battery performance is determined. The effects of storage time on microbe size are also studied. Compared to uncoated TiO 2 anodes, m-TiO 2 exhibited 49% higher capacity at the 40th cycle and enhanced the cycle life close to anodes made with a conventional carbon precursor while using an 11% less amount of carbon. We performed density functional theory calculations to unravel the underlying mechanism of the performance improvement using microbe-derived carbon layers. Computational results show that high amounts of pyridinic nitrogen present in the peptide bonds in microbes are expected to slow down the water diffusion. Our findings provide key insights into the design of an interlayer for WIS anodes and open an avenue to fabricate energy storage materials using biomaterials.

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Section: ■ Results and Discussionmentioning

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Microbe-Assisted Nanocomposite Anodes for Aqueous Li-Ion Batteries

Weng

Gooyandeh

Tariq

et al. 2021

ACS Appl. Mater. Interfaces

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“…It could be further increased by the reduction of open porosity and by the use of articial SEIs or solvent-free electrolytes. 49,50 In the context of this and many other studies, it must be stressed out that the irreversible processes occurring during SEI formation are likely to have a signicant impact on the pore structure and chemical properties of the electrode materials. It is therefore more reasonable to conclude directly on the structure-property relationships of a material for SEI formation in the rst cycle rather than on the electrochemical signature in the subsequent cycles.…”

Section: Resultsmentioning

confidence: 89%

Sodium storage with high plateau capacity in nitrogen doped carbon derived from melamine–terephthalaldehyde polymers

et al. 2021

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“…This disadvantage could possibly be minimized by the use of artificial SEIs or solvent-free electrolytes. [40,41] Galvanostatic charge-discharge profiles between 0.0 and 3.0 V (vs Li/Li þ ) of a half cell test at a current density of 0.1 A g À1 are shown in Figure 3c. All curves represent a rather capacitor-like behavior shape dominated by sloping capacity without clear plateaus due to the absence of complete and specific electron-transfer processes between electrode and lithium ions.…”

Section: Resultsmentioning

confidence: 99%

Understanding Structure–Property Relationships under Experimental Conditions for the Optimization of Lithium‐Ion Capacitor Anodes based on All‐Carbon‐Composite Materials

et al. 2021

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The nanoscale combination of a conductive carbon and a carbon‐based material with abundant heteroatoms for battery electrodes is a method to overcome the limitation that the latter has high affinity to alkali metal ions but low electronic conductivity. The synthetic protocol and the individual ratios and structures are important aspects influencing the properties of such multifunctional compounds. Their interplay is, herein, investigated by infiltration of a porous ZnO‐templated carbon (ZTC) with nitrogen‐rich carbon obtained by condensation of hexaazatriphenylene‐hexacarbonitrile (HAT‐CN) at 550–1000 °C. The density of lithiophilic sites can be controlled by HAT‐CN content and condensation temperature. Lithium storage properties are significantly improved in comparison with those of the individual compounds and their physical mixtures. Depending on the uniformity of the formed composite, loading ratio and condensation temperature have different influence. Most stable operation at high capacity per used monomer is achieved with a slowly dried composite with an HAT‐CN:ZTC mass ratio of 4:1, condensed at 550 °C, providing more than 400 mAh g−1 discharge capacity at 0.1 A g−1 and a capacity retention of 72% after 100 cycles of operation at 0.5 A g−1 due to the homogeneity of the composite and high content of lithiophilic sites.

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Carbon-based artificial SEI layers for aqueous lithium-ion battery anodes

Abstract: Artificial SEI layers passing lithium ions but blocking water molecules for long-lasting aqueous lithium-ion batteries.

Cited by 24 publications

References 47 publications

Microbe-Assisted Nanocomposite Anodes for Aqueous Li-Ion Batteries

Microbe-Assisted Nanocomposite Anodes for Aqueous Li-Ion Batteries

Sodium storage with high plateau capacity in nitrogen doped carbon derived from melamine–terephthalaldehyde polymers

Understanding Structure–Property Relationships under Experimental Conditions for the Optimization of Lithium‐Ion Capacitor Anodes based on All‐Carbon‐Composite Materials

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