TA (Tannic Acid) Powder as Battery Electrode Binder, 50 g/bottle, CBEBTA
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TA (Tannic Acid) is often explored as a small-molecule binder with a unique "anchor and bridge" mechanism" for Silicon (Si) anodes and Lithium-Sulfur (Li-S) batteries. Tannic acid has an incredibly high density of phenolic hydroxyl (-OH) groups that form a dense network of hydrogen bonds with the silicon surface and the copper current collector. It can penetrate micro-crevices and coat the surface of active materials more uniformly, providing superior "wetting" of the electrode particles due to its small molecule structure. Moreover, TA acts as a scavenger for these radicals, suppressing side reactions and helping to form a thinner, more stable SEI layer, which improves Coulombic efficiency.
| Part Number |
CBEBTA (C-BEB-TA) |
| CAS |
1401-55-4 |
| Chemical Formula/Structure |
C76H52O46  |
| Appearance |
Light brown powder |
| Purity |
99.9% (USP) |
| Package Size | 50 g/bottle |
Notes: Please try to store the TA powders in a dry place (glovebox is the best option).
References:
- K. T. Sarang, et al. Tannic Acid as a Small-Molecule Binder for Silicon Anodes, ACS Appl. Energy Mater. 2020, 3, 7, 6985–6994.
- M. Hou, et al. Constructing a Strong-Affinity Elastic Network Binder Enabled by Tannic Acid as the Bifunctional Anchoring Agent for High-Performance Li–S Battery, ACS Appl. Energy Mater. 2022, 5, 11, 13580–13589