Self-healing SEI enables full-cell cycling of a silicon-majority anode with a coulombic efficiency exceeding 99.9%

Jin, Yang; Li, Sa; Kushima, Akihiro; Zheng, Xiaowei; Sun, Yongming; Xie, Jin; Sun, Jie; Xue, Weimin; Zhou, Guangmin; Wu, Jian; Shi, Feifei; Wei, Fei; Zhi, Zhang; So, Kangpyo; Cui, Yi; Li, Ju

doi:10.1039/c6ee02685k

Cited by 467 publications

(322 citation statements)

References 44 publications

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“…Self-healing SEI-based silicon [84] and silicon@graphitic carbon nanowire array [85] present volumetric capacity of 1100 mA h cm −3 (100th cycle) and 1500 mA h cm −3 (after 200 cycles), which is higher than graphite of 550 mA h cm −3 . Therefore, higher tap density with close packing of anode materials demonstrate high volumetric capacity.…”

Section: Conductive Bindermentioning

confidence: 96%

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Challenges and Recent Progress in the Development of Si Anodes for Lithium‐Ion Battery

Jin

Zhu

et al. 2017

Advanced Energy Materials

837

580

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Silicon, because of its high specific capacity, is intensively pursued as one of the most promising anode material for next‐generation lithium‐ion batteries. In the past decade, various nanostructures are successfully demonstrated to address major challenges for reversible Si anodes related to pulverization and solid‐electrolyte interphase. However, the electrochemical performance is still limited by challenges that stem from the use of nanomaterials. In this progress report, the focus is on the challenges and recent progress in the development of Si anodes for lithium‐ion battery, including initial Coulombic efficiency, areal capacity, and material cost, which call for more research effort and provide a bright prospect for the widespread applications of silicon anodes in the future lithium‐ion batteries.

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Section: Conductive Bindermentioning

confidence: 96%

“…[84] Besides, binder component and electrolyte additive are systematically studied to further understand silicon-based full cell system. [98,99] At aspect of energy density, Si-nanolayer-embedded graphite/carbon hybrids [47] and monodisperse porous silicon nanospheres [86] can reach 1043 and 850 W h L −1 , respectively.…”

Section: Challenges Of Full Cellsmentioning

confidence: 99%

Challenges and Recent Progress in the Development of Si Anodes for Lithium‐Ion Battery

Jin

Zhu

et al. 2017

Advanced Energy Materials

837

580

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“…a) Te nsile stress/elongation curves and b) elastic modulus(patternedb ar) and adhesion strength (solid bar) measurementsfor composites of various binders with Si and acetylene black. Hence, on this basis, compositescontaining PAA, Na-CMC,and PANwould be interesting choices;h owever,i th as been also reported [45][46][47][48] that the regenerativen ature of the bindinga dditives after fracture could be another crucial feature. ChemSusChem 2017, 10,4080 -4089 www.chemsuschem.org ulus, and high resistance to stress.…”

Section: Mechanical Properties Of Common Composite Electrodef Ilmsmentioning

confidence: 99%

Effects of the Formulations of Silicon‐Based Composite Anodes on their Mechanical, Storage, and Electrochemical Properties

Assresahegn

Bélanger

2017

ChemSusChem

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In this work, the effects of the formulation of silicon-based composite anodes on their mechanical, storage, and electrochemical properties were investigated. The electrode formulation was changed through the use of hydrogenated or modified (through the covalent attachment of a binding additive such as polyacrylic acid) silicon and acetylene black or graphene sheets as conducting additives. A composite anode with a covalently grafted binder had the highest elongation without breakages and strong adhesion to the current collector. These mechanical properties depend significantly on the conductive carbon additive used and the use of graphene sheets instead of acetylene black can improve elongation and adhesion significantly. After 180 days of storage under ambient conditions, the electronic conductivity and discharge capacity of the modified silicon electrode showed much smaller decreases in these properties than those of the hydrogenated silicon composite electrode, indicating that the modification can result in passivation and a constant composition of the active material. Moreover, the composite Si anode has a high packing density. Consequently, thin-film electrodes with very high material loadings can be prepared without decreased electrochemical performance.

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“…[120][121][122][123][124][125] Among generous researches, the most representative work is the yolkshell structure that reported by Cui's group in 2012. [126] In this work, commercially available Si nanoparticles were completely encapsulated in a thin and self-supporting carbon shell.…”

Section: Hollow Structurementioning

confidence: 99%

Rationally Designed Silicon Nanostructures as Anode Material for Lithium‐Ion Batteries

et al. 2017

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Silicon (Si) is promising for high capacity anodes in lithium-ion batteries due to its high theoretical capacity, low working potential, and natural abundance. However, there are two main drawbacks that impede its further practical applications. One is the huge volume expansion generating during lithiation and delithiation progresses, which leads to severe structural pulverization and subsequently rapid capacity fading of the electrode. The other is the relatively low intrinsic electronic conductivity, therefore, seriously impacting the rate performance. In the past decades, numerous efforts have been devoted for improving the cycling stability and rate capability by rational designs of different nanostructures of Si materials and incorporations with some conductive agents. In this review, the authors summarize the exciting recent research works and focus on not only the synthesis techniques, but also the composition strategies of silicon nanostructures. The advantages and disadvantages of the nanostructures as well as the perspective of this research field are also discussed. We aim to give some reference for engineering application on Si anodes in lithium ion batteries.

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Self-healing SEI enables full-cell cycling of a silicon-majority anode with a coulombic efficiency exceeding 99.9%

Abstract: Full-cell cycling of a high density silicon-majority anode with 2× volumetric capacity of graphite and a stabilized coulombic efficiency exceeding 99.9%.

Cited by 467 publications

References 44 publications

Challenges and Recent Progress in the Development of Si Anodes for Lithium‐Ion Battery

Challenges and Recent Progress in the Development of Si Anodes for Lithium‐Ion Battery

Effects of the Formulations of Silicon‐Based Composite Anodes on their Mechanical, Storage, and Electrochemical Properties

Rationally Designed Silicon Nanostructures as Anode Material for Lithium‐Ion Batteries

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