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New electrode binder material for high-performance sodium-ion batteries - EurekAlert
Hard carbon (HC) has emerged as a promising anode material for sodium-ion batteries (SIBs). Conventional binders used to mitigate its poor cycling stability and reaction speeds result in poor rate capability due to slow sodium ion diffusion. Now, researchers have developed an HC anode using polyfumaric acid binders, exhibiting excellent specific capacity and cycling stability. This water-soluble bio-derived binder can lead to the commercialization of HC-based SIBs.
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