Galactomannan binding agents for silicon anodes in Li-ion batteries

@article{Dufficy2015GalactomannanBA,
  title={Galactomannan binding agents for silicon anodes in Li-ion batteries},
  author={Martin K. Dufficy and Saad A. Khan and Peter S. Fedkiw},
  journal={Journal of Materials Chemistry},
  year={2015},
  volume={3},
  pages={12023-12030}
}
The challenge to incorporate Si into Li-ion battery anodes has attracted much attention. Binding agents are a critical component in a battery that may also be used to enhance electrode performance. Herein, we report the use of galactomannans—a low-cost, environmentally friendly, biorenewable polymer—as a novel binding agent for Si-containing electrodes. Silicon-containing electrodes with as low as 5 wt% binder show large reversible capacities with >90% charge retention after 100 cycles without… 

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References

SHOWING 1-10 OF 58 REFERENCES

Bio-Derivative Galactomannan Gum Binders for Li4Ti5O12 Negative Electrodes in Lithium-Ion Batteries

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

A Major Constituent of Brown Algae for Use in High-Capacity Li-Ion Batteries

It is shown that mixing Si nanopowder with alginate, a natural polysaccharide extracted from brown algae, yields a stable battery anode possessing reversible capacity eight times higher than that of the state-of-the-art graphitic anodes.

Toward an ideal polymer binder design for high-capacity battery anodes.

A binder polymer with multifunctionality to maintain high electronic conductivity, mechanical adhesion, ductility, and electrolyte uptake and this work demonstrates directly the performance of the developed conductive binder by achieving full-capacity cycling of silicon particles without using any conductive additive.

Nanostructured silicon for high capacity lithium battery anodes

Nanostructured silicon is promising for high capacity anodes in lithium batteries. The specific capacity of silicon is an order of magnitude higher than that of conventional graphite anodes, but the

Toward silicon anodes for next-generation lithium ion batteries: a comparative performance study of various polymer binders and silicon nanopowders.

It is shown that key parameters such as specific capacity, capacity retention, rate capability, and so forth can be strongly affected by the choice of silicon material, polymer binder and electrolyte system - even the formation of metastable crystalline Li15Si4 is found to depend on the electrode composition and low potential exposure time.

High-performance lithium-ion anodes using a hierarchical bottom-up approach.

A large-scale hierarchical bottom-up assembly route for the formation of Si on the nanoscale--containing rigid and robust spheres with irregular channels for rapid access of Li ions into the particle bulk.

Engineering empty space between Si nanoparticles for lithium-ion battery anodes.

An empty space between Si nanoparticles is engineered by encapsulating them in hollow carbon tubes to overcome challenges of pulverization of silicon and unstable solid-electrolyte interphase (SEI) formation during the electrochemical cycles.

Silicon/Graphite Composite Electrodes for High-Capacity Anodes: Influence of Binder Chemistry on Cycling Stability

The binder's influence on the cycling stability of high-energy anodes for lithium-ion batteries is demonstrated. Varying the binder's nature strongly influences the composite electrode's performance

Effect of fluoroethylene carbonate (FEC) on the performance and surface chemistry of Si-nanowire Li-ion battery anodes.

The effect of FEC as a co-solvent on the electrochemical performance and surface chemistry of silicon nanowire (SiNW) anodes was thoroughly investigated and thinner and compact surface films were identified for SiNW electrodes cycled in FEC-free solutions.

High-capacity Si–graphite composite electrodes with a self-formed porous structure by a partially neutralized polyacrylate for Li-ion batteries

NaOH-neutralized poly(acrylic acid) is examined as a binder for Si-based negative electrodes in rechargeable Li-ion batteries. To better understand the influence of polymer binder characteristics,
...