Improved stability of nano-Sn electrode with high-quality nano-SEI formation for lithium ion battery

Eom, KwangSup; Jung, Jaehan; Lee, Jung Tae; Lair, Valentin; Joshi, Tapesh; Lee, Seung Woo; Lin, Zhiqun; Fuller, Thomas F.

doi:10.1016/j.nanoen.2014.12.041

Cited by 114 publications

(83 citation statements)

References 44 publications

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“…As the SEI is composed of oxides and is an insulator, its formation may thus electrochemically isolate individual Si nanoparticles that form during Si pulverization and greatly decrease the electrical conductivity of the Si/graphene electrode and reduce its capacity. Many previous studies have focused on the formation of a thin and stable SEI using electrolyte additive(s) or surface-treatment techniques and incremental improvements have been shown353637. However, the superiority of this approach is the demonstration of the ability to spontaneously form a higher quality SEI in situ by properly designing a full cell.…”

Section: Resultsmentioning

confidence: 99%

“…Our main interest is on high-frequency resistance (HFR) region, determined by the resistance of electrolyte and SEI. Specifically, the semi-circle presenting in HFR region is directly related to conductivity of SEI, which determines the quality of SEI for high LiB performance353740. The diameter of the HFR semicircle is equal to the SEI resistance including electrical and ionic resistances (mostly by ionic conductivity)4041.…”

Section: Resultsmentioning

confidence: 99%

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A stable lithiated silicon–chalcogen battery via synergetic chemical coupling between silicon and selenium

et al. 2017

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Li-ion batteries dominate portable energy storage due to their exceptional power and energy characteristics. Yet, various consumer devices and electric vehicles demand higher specific energy and power with longer cycle life. Here we report a full-cell battery that contains a lithiated Si/graphene anode paired with a selenium disulfide (SeS2) cathode with high capacity and long-term stability. Selenium, which dissolves from the SeS2 cathode, was found to become a component of the anode solid electrolyte interphase (SEI), leading to a significant increase of the SEI conductivity and stability. Moreover, the replacement of lithium metal anode impedes unwanted side reactions between the dissolved intermediate products from the SeS2 cathode and lithium metal and eliminates lithium dendrite formation. As a result, the capacity retention of the lithiated silicon/graphene—SeS2 full cell is 81% after 1,500 cycles at 268 mA gSeS2−1. The achieved cathode capacity is 403 mAh gSeS2−1 (1,209 mAh cmSeS2−3).

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

A stable lithiated silicon–chalcogen battery via synergetic chemical coupling between silicon and selenium

et al. 2017

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“…BP-based materials prepared by this method have already been reported for the common liquid-electrolyte batteries and even the novel all-solid-state batteries. [192,[204][205][206] In this regard, electrode reversibility of Li-P/Na-P alloys would be successfully enhanced by utilizing nonfluorinated binders, such as poly(sodium acrylate) (PANa), [51,207,208] and sodium carboxymethyl cellulose (NaCMC) [28,133,209] with electrolyte additives (like FEC [207,210] ) for SIBs. [200][201][202][203] Furthermore, the formation of SEI films is closely related with battery properties.…”

Section: High-energy Mechanical Millingmentioning

confidence: 99%

Advanced Phosphorus‐Based Materials for Lithium/Sodium‐Ion Batteries: Recent Developments and Future Perspectives

Wei

Zhang

et al. 2018

Advanced Energy Materials

173

128

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High‐performance and lost‐cost lithium‐ion and sodium‐ion batteries are highly desirable for a wide range of applications including portable electronic devices, transportation (e.g., electric vehicles, hybrid vehicles, etc.), and renewable energy storage systems. Great research efforts have been devoted to developing alternative anode materials with superior electrochemical properties since the anode materials used are closely related to the capacity and safety characteristics of the batteries. With the theoretical capacity of 2596 mA h g−1, phosphorus is considered to be the highest capacity anode material for sodium‐ion batteries and one of the most attractive anode materials for lithium‐ion batteries. This work provides a comprehensive study on the most recent advancements in the rational design of phosphorus‐based anode materials for both lithium‐ion and sodium‐ion batteries. The currently available approaches to phosphorus‐based composites along with their merits and challenges are summarized and discussed. Furthermore, some present underpinning issues and future prospects for the further development of advanced phosphorus‐based materials for energy storage/conversion systems are discussed.

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“…However, its low Li storage capacity (372 mAhg −1 ) cannot satisfy the large power demanding for electric vehicles and smart grids23. Transition metal dichalcogenides (TMDs) with graphite-like layered structures, such as WS 2 4, MoS 2 56, MoSe 2 7, TiS 2 8 have received tremendous attention as alternatives to graphite for the anode materials in the rechargeable ion batteries.…”

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confidence: 99%

Origin of Structural Transformation in Mono- and Bi-Layered Molybdenum Disulfide

Sun

Wang

et al. 2016

Sci Rep

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Mono- and multi-layered molybdenum disulfide (MoS2) is considered to be one of the next generation anode materials for rechargeable ion batteries. Structural transformation from trigonal prismatic (2H) to octahedral (1T) upon lithium or sodium intercalation has been in-situ observed experimentally using transmission electron microscope during studies of their electrochemical dynamics processes. In this work, we explored the fundamental mechanisms of this structural transformation in both mono- and bi-layered MoS2 using density functional theory. For the intercalated MoS2, the Li and Na donate their electrons to the MoS2. Based on the theoretical analysis, we confirmed that, for the first time, electron transfer is dominant in initiating this structural transformation, and the results provide an in-depth understanding of the transformation mechanism induced by the electron doping. The critical values of electron concentrations for this structural transformation are decreased with increasing the layer thickness.

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Improved stability of nano-Sn electrode with high-quality nano-SEI formation for lithium ion battery

Cited by 114 publications

References 44 publications

A stable lithiated silicon–chalcogen battery via synergetic chemical coupling between silicon and selenium

A stable lithiated silicon–chalcogen battery via synergetic chemical coupling between silicon and selenium

Advanced Phosphorus‐Based Materials for Lithium/Sodium‐Ion Batteries: Recent Developments and Future Perspectives

Origin of Structural Transformation in Mono- and Bi-Layered Molybdenum Disulfide

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