Analysis of solid electrolyte interface formation reaction and surface deposit of natural graphite negative electrode employing polyacrylic acid as a binder

Ui, Koichi; Fujii, Daisuke; Niwata, Yuki; Karouji, Tomohiro; Shibata, Yu; Kadoma, Yoshihiro; Shimada, Kazuaki; Kumagai, Naoya

doi:10.1016/j.jpowsour.2013.08.083

Cited by 33 publications

(25 citation statements)

References 29 publications

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“…2). This behavior has also been confirmed in organic solution electrolytes [18,19] and the chloroaluminate type RTIL electrolyte [10,11]. Thus, it is considered that the reduction reaction of the electrolyte could be suppressed after the 2nd cycle because an interface similar to the SEI film on the surface of the graphite particles would be formed during the 1st cycle.…”

Section: Resultsmentioning

confidence: 63%

Charge–discharge characteristics of natural graphite electrode in N, N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium bis(trifluoromethylsulfonyl)amide containing lithium ion for lithium-ion secondary batteries

Towada

Karouji

Sato

et al. 2015

Journal of Power Sources

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We investigated the electrochemical characteristics of a natural graphite electrode in room-temperature ionic liquids not containing additives. N, N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium bis(trifluoromethylsulfonyl)amide (DEME-TFSA) containing lithium bis(trifluoromethylsulfonyl)amide (Li-TFSA) as the electrolyte and a natural graphite electrode as the negative electrode material were employed. The charge-discharge tests showed that the discharge capacity and the charge-discharge efficiency of the natural graphite electrode at the 1st cycle were 318 mAh g -1 and 75.6%, respectively. The cycle performance showed that the discharge capacity and the charge-discharge efficiency were stably maintained at ca. 320 mAh g -1 and 100%, respectively, until the initial 10th cycle. The ex-situ X-ray diffraction measurements showed that lithium-graphite intercalation compounds, such as LiC 12 and LiC 6 , were formed after the 1st charge. The structural change in the natural graphite electrode was reversible because graphite recovered to its original structure after the 1st discharge. These results clarified that the graphite electrode could operate as a negative electrode for lithium-ion secondary batteries in DEME-TFSA containing Li-TFSA without organic solvents. Highlights:Initial characteristics of graphite at 25 o C with a capacity close to theoretical.A stable cycle performance was obtained. DEME-TFSA containing Li-TFSA provides reversible lithium ion intercalation/extraction without any additives. DEME-TFSA containing Li-TFSA may provide suitable SEI film. DEME-TFSA containing Li-TFSA may prevent undesirable side reactions.

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Section: Resultsmentioning

confidence: 63%

Charge–discharge characteristics of natural graphite electrode in N, N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium bis(trifluoromethylsulfonyl)amide containing lithium ion for lithium-ion secondary batteries

Towada

Karouji

Sato

et al. 2015

Journal of Power Sources

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“…The irreversible capacity of loss is mainly attributed to the formation of SEI film and Li + trapped into the lattice of MoO 2 . Besides, a larger specific surface area may be a reason for the loss of initial irreversible capacity, which is common in the reported anode materials . A discharge capacity of 1099, 1010, and 929.4 mAh g −1 in the 2nd, 10th, and 50th cycle are delivered, respectively.…”

Section: Resultsmentioning

confidence: 98%

Formation of Mo–Polydopamine Hollow Spheres and Their Conversions to MoO₂/C and Mo₂C/C for Efficient Electrochemical Energy Storage and Catalyst

Wang

Sun

Zhang

et al. 2017

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Highly uniform hierarchical Mo-polydopamine hollow spheres are synthesized for the first time through a liquid-phase reaction under ambient temperature. A self-assembly mechanism of the hollow structure of Mo-polydopamine precursor is discussed in detail, and a determined theory is proposed in a water-in-oil system. Via different annealing process, these precursors can be converted into hierarchical hollow MoO /C and Mo C/C composites without any distortion in shape. Owing to the well-organized structure and nanosize particle embedding, the as-prepared hollow spheres exhibit appealing performance both as the anode material for lithium-ion batteries and as the catalyst for hydrogen evolution reaction (HER). Accordingly, MoO /C delivers a high reversible capacity of 940 mAh g at 0.1 A g and 775 mAh g at 1 A g with good rate capability and long cycle performance. Moreover, Mo C/C also exhibits an enhanced electrocatalytic performance with a low overpotential for HER in both acidic and alkaline conditions, as well as remarkable stability.

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“…The irreversible capacity results are consistent with previous work that has repeatedly shown higher irreversible capacity for PVdF-based electrodes compared to electrodes made with watersoluble binders such as CMC. [46][47][48] The large increase in irreversible strain given a moderate increase in irreversible capacity, however, was not expected.…”

Section: Reversible Behaviormentioning

confidence: 97%

Reversible and Irreversible Deformation Mechanisms of Composite Graphite Electrodes in Lithium-Ion Batteries

Jones

Çapraz

White

et al. 2016

J. Electrochem. Soc.

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Repeated charge and discharge of graphite composite electrodes in lithium-ion batteries cause cyclic volumetric changes in the electrodes, which lead to electrode degradation and capacity fade. In this work, we measure in situ the electrochemically-induced deformation of graphite composite electrodes. The deformation is divided into a reversible component and an irreversible component. Reversible expansion/contraction of the composite electrodes is correlated with localized changes in graphite layer spacing associated with different graphite-lithium intercalation compounds. Phase transitions between different intercalation compounds are manifested during galvanostatic cycling as peaks in the derivative of capacity with respect to voltage; these peaks correspond remarkably well with peaks in the derivative of strain with respect to voltage. Irreversible electrode deformation is correlated with deposition of electrolyte decomposition products on graphite particles during the formation and growth of the solid electrolyte interphase (SEI). Both the irreversible capacity and the irreversible strain developed during galvanostatic cycling increase with increasing electrode surface area and increasing cycling time. During a potentiostatic voltage hold at 0.5 V vs Li +/0 , in which electrolyte decomposition is the dominating electrochemical reaction, both the capacity and the electrode strain increase proportional to the square root of time. Interestingly, the choice of polymer binder, either carboxymethyl cellulose (CMC) or polyvinylidene fluoride (PVdF), has a significant influence on the irreversible electrode deformation, suggesting that the formation and growth of the SEI layer is influenced by the polymer binder.

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Analysis of solid electrolyte interface formation reaction and surface deposit of natural graphite negative electrode employing polyacrylic acid as a binder

Cited by 33 publications

References 29 publications

Charge–discharge characteristics of natural graphite electrode in N, N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium bis(trifluoromethylsulfonyl)amide containing lithium ion for lithium-ion secondary batteries

Charge–discharge characteristics of natural graphite electrode in N, N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium bis(trifluoromethylsulfonyl)amide containing lithium ion for lithium-ion secondary batteries

Formation of Mo–Polydopamine Hollow Spheres and Their Conversions to MoO₂/C and Mo₂C/C for Efficient Electrochemical Energy Storage and Catalyst

Reversible and Irreversible Deformation Mechanisms of Composite Graphite Electrodes in Lithium-Ion Batteries

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Analysis of solid electrolyte interface formation reaction and surface deposit of natural graphite negative electrode employing polyacrylic acid as a binder

Cited by 33 publications

References 29 publications

Charge–discharge characteristics of natural graphite electrode in N, N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium bis(trifluoromethylsulfonyl)amide containing lithium ion for lithium-ion secondary batteries

Charge–discharge characteristics of natural graphite electrode in N, N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium bis(trifluoromethylsulfonyl)amide containing lithium ion for lithium-ion secondary batteries

Formation of Mo–Polydopamine Hollow Spheres and Their Conversions to MoO2/C and Mo2C/C for Efficient Electrochemical Energy Storage and Catalyst

Reversible and Irreversible Deformation Mechanisms of Composite Graphite Electrodes in Lithium-Ion Batteries

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Formation of Mo–Polydopamine Hollow Spheres and Their Conversions to MoO₂/C and Mo₂C/C for Efficient Electrochemical Energy Storage and Catalyst