Effect of high adhesive polyvinyl alcohol binder on the anodes of lithium ion batteries

Park, Hye-Kyoung; Kong, Byung-Seon; Oh, Eun‐Suok

doi:10.1016/j.elecom.2011.06.034

Cited by 232 publications

(118 citation statements)

References 13 publications

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“…In practical applications, lacquer coatings often encounter high shearing forces besides vertical stress. For this purpose and also for electrode coatings different analysing techniques, like the surface scratch test [12,20], peeling test [6,10,13,17,[21][22][23], cross-cut test [24,25] and the pull-off test [16] were established. Bouchet and coworkers [16] are the only ones who used a similar test procedure, as introduced in this paper.…”

Section: Methodsmentioning

confidence: 99%

“…Thus, high molecular weight binders seem to be suitable to process electrodes with enhanced mechanical stability or to reduce the overall amount of binder content of the recipe. A general enhancement of adhesion by high molecular polyvinyl alcohol binders for anodes, utilizing a peel test, was published by Park, et al [22]. Before Yoo et al stated the assumption that adhesion is enhanced by enlarging the molecular weight of the binder [12].…”

Section: Influence Of the Amount Of Binder And Its Chain Length On Comentioning

confidence: 97%

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Measuring the coating adhesion strength of electrodes for lithium-ion batteries

Haselrieder

Westphal

Bockholt

et al. 2015

International Journal of Adhesion and Adhesives

160

190

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Section: Methodsmentioning

confidence: 99%

Section: Influence Of the Amount Of Binder And Its Chain Length On Comentioning

confidence: 97%

Measuring the coating adhesion strength of electrodes for lithium-ion batteries

Haselrieder

Westphal

Bockholt

et al. 2015

International Journal of Adhesion and Adhesives

160

190

View full text Add to dashboard Cite

“…3 and 4). 17 Figure 7 shows the dependence of impedance on the amount of HPC added; the results prove that the addition of HPC increases the initial charge/discharge capacity and cycling characteristics. Until the mixed amount of HPC reached 1.0 wt%, the polarization resistance decreased below the level before the addition of HPC.…”

Section: Methodsmentioning

confidence: 86%

Effects of Adding HPC to Si-Alloy Anode Slurry of Lithium Secondary Battery

Park

Jung

et al. 2015

J. Electrochem. Soc.

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This study was carried out to analyze the effects of adding hydroxypropyl cellulose (HPC) on the rheology and dispersibility of the slurry and battery characteristics when fabricating an anode slurry containing Si alloy as the active material, a water-based binder, and deionized water as the solvent. The addition of HPC resulted in a reduction in the viscosity and excellent dispersion in the slurry. In the battery, the adhesiveness of the electrode and current collector was improved, and the initial capacity, polarization resistance, and cycling performance were improved. In addition, the expansion in thickness decreased. This was because HPC suppressed coagulation by steric hindrance and simultaneously acted as a binder by being adsorbed on the particle surfaces of the Si alloy and Ketjen black.

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“…A number of 33 polymers have been investigated as binders in LIBs. 174,175,176,177 Polyvinylidene fluoride (PVDF), one conventional binder, exhibits a good ductility and has been examined for Si anodes. But it is not a good binder agent.…”

Section: Polymer Modified Si Electrodementioning

confidence: 99%

“…179 Respectable LIB performances were obtained with PAA, CMC, and SA. 176,181,182,183,184 They all have carboxylic functional groups and are soluble in water with environment-friendly characteristic.…”

mentioning

confidence: 99%

Silicon-based anode materials for lithium-ion batteries

Xu¹

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While lithium-ion batteries (LIBs) have found wide applications in customer electronics, such as cellular phones and lap-top computers, the performance of the currently LIBs does not meet the market requirements for massive energy storage, such as electric vehicles and smart grids. One of the critical issues is the low energy capacity of the electrode materials. Graphite has been a common anode for LIBs, but the maximum capacity (372 mAh·g -1 ) of graphite has hindered its application in advanced LIBs. Substituting graphite with materials of high capacity has become an active research area. Graphene can store more Li + than graphite because Li + can not only be stored on both sides of graphene sheets, but also on the edges and covalent sites. Being electric conducting and mechanically strong, graphene is also an attractive support for other high capacity materials, such as silicon (Si). Si possesses the highest known theoretical capacity (4200 mAh·g -1 , fully lithiated).However, Si suffers from a critical problem, namely severe volume change during charging/discharging, resulting in poor reversibility and rapid capacity decay. This PhD project aims to improve the stability and suitability of Si nanoparticles (SiNPs) for LIBs.The first aspect in this thesis is to demonstrate a novel approach to wrapping SiNPs in a reduced graphene oxide (RGO) aerogel framework. The aerogel-typed RGO architecture not only provided a porous network to accommodate the volume change of entrapping SiNPs, but also facilitated electrolyte transport and electron transfer.The second aspect in this thesis is to report a simple, green and scalable method to prepare RGO using gallic acid (GA) as a chemical reducing reagent. RGO samples reduced by GA showed a superior Li + storage capacity compared with graphite and other reported graphene materials as anode for LIBs.The third aspect in this thesis is to report on the preparation of RGO-stabilized SiNPs, a sandwich-typed composite material (Si@RGO). As a result, good battery performance of Si@RGO was obtained, 1074 mAh·g -1 at the 5th cycle and 900 mAh·g -1 at the 100th cycle with a capacity retention of about 84% as well as excellent rate capability. II Declaration by author

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Effect of high adhesive polyvinyl alcohol binder on the anodes of lithium ion batteries

Cited by 232 publications

References 13 publications

Measuring the coating adhesion strength of electrodes for lithium-ion batteries

Measuring the coating adhesion strength of electrodes for lithium-ion batteries

Effects of Adding HPC to Si-Alloy Anode Slurry of Lithium Secondary Battery

Silicon-based anode materials for lithium-ion batteries

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