Abstract
Applying styrene butadiene rubber-carboxymethyl cellulose (SBR-CMC) and polyvinylidene fluoride (PVDF) as anode binder, respectively, the influence of different anode binders on the high power li-ion battery performance was researched. Glass transition temperature of PVDF, SBR and CMC was tested by the method of differential scanning calorimetry (DSC), and the values were -51.7 °C, -42.18 °C and -55.82 °C, respectively. Pouch cells were prepared with the two kinds of binder. The rate performance testing result showed no obvious difference at room temperatures. However, due to the different glass-transition temperature of the two binders, the sample cells with PVDF binder exhibited superior performance in low temperature discharge. The cells were discharged at 0.5 C at the temperature of 20 °C and -40 °C, and 1 C at -40 °C, respectively, the discharge capacity ratio of cell with SBR-CMC binder to that of the with PVDF binder cell were 1.004, 0.706 and 0.589.
| Translated title of the contribution | Influence of graphite anode binder on the high power Li-ion battery performance |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 123-129 |
| Number of pages | 7 |
| Journal | Energy Storage Science and Technology |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Jan 2019 |
| Externally published | Yes |
