Binder effect on cycling performance of silicon/carbon composite anodes for lithium ion batteries

Chen, Libao; Xie, Xiaohua; Xie, Jian; Wang, Ke; Yang, Jun

doi:10.1007/s10800-006-9191-2

Cited by 157 publications

(116 citation statements)

References 22 publications

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“…An excess uptake severely weakens the adhesion by changing the binder morphology and can cause the ultimate failure of the mechanical integrity of electrodes. 24,25 Although the conventional PVdF binder absorbs normally 20-40 wt% of electrolyte of its weight, [25][26][27] CMC and the gum binders uptake electrolyte to a small extent in the range of 3-7 wt% for 48 h, as plotted in Fig. 7.…”

Section: Resultsmentioning

confidence: 99%

Bio-Derivative Galactomannan Gum Binders for Li₄Ti₅O₁₂Negative Electrodes in Lithium-Ion Batteries

Lee

Kim

2014

J. Electrochem. Soc.

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Two types of galactomannan gum derived from plant seeds, guar gum (GG) and tara gum (TG), were used for the first time as the binders for Li 4 Ti 5 O 12 (LTO) negative electrodes in lithium-ion batteries; they were thoroughly compared to typical carboxymethyl cellulose (CMC) binder using various characterization techniques. The galactomannan gums, branched polysaccharides, better facilitate the transport of lithium ions in LTO electrodes than CMC binder, a cellulose (linear polysaccharide) derivative, even though their binding capability is not as strong as CMC. This is attributed to a large extent of electrolyte uptake and a large LTO surface exposed to electrolyte when the gum binders are used. In particular, the GG-containing LTO electrode exhibits a high reversible capacity of 160.0 mAh g −1 at the 100 th cycle with 1 C current rate, whereas the CMC-containing LTO electrode has a reversible capacity of 150.1 mAh g −1 . The difference in capacity between the GG and CMC electrodes increased at higher current rates and was approximately 25 mAh g −1 at 10 C current rate. Nowadays, lithium-ion battery (LIB) has expanded its territory to electric vehicles (EV) and energy storage systems (ESS) from small mobile devices. The medium-or large-sized LIBs for EV and ESS require extraordinary long-cycled, high-powered, and high-capacity active materials. In this perspective, spinel-structured lithium titanium oxide (Li 4 Ti 5 O 12 , LTO) is an appropriate candidate for the anode material of LIBs used in EV and ESS because of its extremely stable structure and rapid lithium-ion transport during charge and discharge processes.1-3 Although the successful commercial application of LTO in LIB anodes has been recently achieved, minimal attention has been given to the polymeric binder that is an inactive but indispensable component of the LTO electrodes. The polymeric binder provides adhesion between active materials including conducting agents and current collector to form an electrically conductive integrated electrode.Two types of polymeric binders have been commercially used for LIBs: solvent-soluble polyvinylidene fluoride (PVdF) and watersoluble carboxymethyl cellulose (CMC) combined with waterdispersed styrene butadiene rubber (SBR). Unlike PVdF, CMC polymer is soluble in water, thus allowing the LIB manufacturing process to be environmentally friendly and inexpensive for recovering an organic solvent. These are the main reasons why most of the commercial negative electrodes are prepared from CMC binder combined with SBR. For LTO electrodes including TiO 2 , CMC polymer reported to have better binder performance from an electrochemical perspective of LTO electrodes than PVdF. [4][5][6] This was attributed to its low charge-transfer resistance, low activation energy for lithium-ion diffusion, and suitable electrolyte wettability of CMC-containing LTO electrodes. Recently, our group thoroughly investigated the effect of the degree of the substitution (DS) and molecular weight (MW) of CMC binder on the electrochemical perfo...

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Section: Resultsmentioning

confidence: 99%

Bio-Derivative Galactomannan Gum Binders for Li₄Ti₅O₁₂Negative Electrodes in Lithium-Ion Batteries

Lee

Kim

2014

J. Electrochem. Soc.

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“…Chen et al [33] improved the cycling performance of 20% nano-Si containing Si/C composite and nano Si electrodes by replacing PVDF with acrylic adhesive binder.…”

Section: Introductionmentioning

confidence: 99%

Effect of Heat Treatment on Si Electrodes Using Polyvinylidene Fluoride Binder

Li¹,

Christensen²,

Obrovac³

et al. 2008

J. Electrochem. Soc.

118

108

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The electrochemical performance of Si electrodes using polyvinylidene fluoride (PVDF) binder heated at different temperatures ranging from 150°C to 350°C was investigated. Compared to unheated electrodes that have no capacity after the first formation cycle, the heat treated electrodes show an increasingly improved cycling performance as the heating temperature increases from 150°C to 300°C. In particular, Si electrodes heated at 300°C retain a specific capacity of about 600 mAh/g for 50 cycles with a lower cutoff potential of 0.170 V vs Li/Li + . The reasons for such improvements are considered based on results from thermal analysis, optical microscopy and adhesion tests. It is suggested that heat treatment improves the binder distribution, the adhesion to the Si particles and to the substrate, thereby leading to a better cycling performance.2

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“…Therefore, it will be beneficial to develop binders that can be processed with less toxic, or even non-toxic solvents. Recently, it was reported that water-based binder such as styrene-butadiene rubber (SBR) and carboxymethyl cellulose (CMC) effectively improves the cycling stability of silicon electrode [15][16][17][18][19][20][21][22][23][24][25][26] . According to a previous report by Hochgatterer et al [21] , the formation of a covalent chemical bond between the CMC and silicon particle plays an important role in the effective binding and improved performance.…”

Section: Introductionmentioning

confidence: 99%

Organic Solvent Free Process to Fabricate High Performance Silicon and Graphite Composite Anode

Xiao¹,

Zheng²,

Liu³

2018

Preprint

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Abstract:Cycling reliability is crucial for Si-based materials due to severe volume change during cycles that results in the fast capacity fading. Though the binder only occupies a very low amount of the total mass of anodes, it is proved to perform a key parameter to improve the cycle performance of Si-based anodes. Because they are eco-friendly and cost saving, water-based binders styrene-butadiene rubber (SBR) and carboxymethyl cellulose (CMC) are regarded as the better binder to substitute Poly (vinylidene difluoride) (PVDF) as the binder for Si-based anode. In this study, the anodes are fabricated by simply mixing the active materials (naso Si, graphite and conductive additive) together and using the mixture of SBR and CMC as a binder. The results showed that the retention capacities of the anodes are more than 440 mAh/g after 400 cycles. It indicates that it is an easy and simple way to make high performance anodes.

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Binder effect on cycling performance of silicon/carbon composite anodes for lithium ion batteries

Cited by 157 publications

References 22 publications

Bio-Derivative Galactomannan Gum Binders for Li₄Ti₅O₁₂Negative Electrodes in Lithium-Ion Batteries

Bio-Derivative Galactomannan Gum Binders for Li₄Ti₅O₁₂Negative Electrodes in Lithium-Ion Batteries

Effect of Heat Treatment on Si Electrodes Using Polyvinylidene Fluoride Binder

Organic Solvent Free Process to Fabricate High Performance Silicon and Graphite Composite Anode

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Binder effect on cycling performance of silicon/carbon composite anodes for lithium ion batteries

Cited by 157 publications

References 22 publications

Bio-Derivative Galactomannan Gum Binders for Li4Ti5O12Negative Electrodes in Lithium-Ion Batteries

Bio-Derivative Galactomannan Gum Binders for Li4Ti5O12Negative Electrodes in Lithium-Ion Batteries

Effect of Heat Treatment on Si Electrodes Using Polyvinylidene Fluoride Binder

Organic Solvent Free Process to Fabricate High Performance Silicon and Graphite Composite Anode

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Product

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Bio-Derivative Galactomannan Gum Binders for Li₄Ti₅O₁₂Negative Electrodes in Lithium-Ion Batteries

Bio-Derivative Galactomannan Gum Binders for Li₄Ti₅O₁₂Negative Electrodes in Lithium-Ion Batteries