DSS (Dextran Sulfate Sodium) Powder as Battery Electrode Binder, 25 g/bottle, CBEBDSS
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DSS (Dextran Sulfate Sodium) is a highly specialized, multifunctional aqueous binder for battery research. (1) DSS is able to stabilize cathodes like LiCoO2 (LCO) and LiMn2O4 (LMO) at ultra-high voltages (up to 4.6V), which is attributed to that the DSS forms a thin, uniform coating on the active material particles that acts as an artificial interface, preventing the liquid electrolyte from decomposing at high potentials. (2) For LMO cathode, the sulfate groups (-SO3-) in DSS have a powerful coordination effect with transition metals. They "lock" the manganese ions into the crystal structure, effectively stopping them from leaching out. Moreover, in sodium-ion systems, DSS can even contribute to the stabilization of the structure by incorporating Na into the interstitial sites of the active material.
| Part Number |
CBEBDSS (C-BEB-DSS) |
| CAS |
9011-18-1 |
| Chemical Formula/Structure |
(C₆H₇O₅)m(C₆H₇O₅)n
 |
| Appearance |
White powder |
| Average Molar Mass |
Mw = 40000 |
| Package Size | 25 g/bottle |
Notes: Please try to store the DSS powder in a dry place (glovebox is the best option).
References:
- Q. Gan, et al. Consolidating the Vulnerable Interphase of Ni-Rich Layered Cathode by Multifunctional Water-Based Binder, ACS Energy Lett. 2024, 9, 4, 1562–1571.
- S. Zhong, et al. Dextran Sulfate Sodium as Multifunctional Aqueous Binder Stabilizes Spinel LiMn2O4 for Lithium Ion Batteries, Adv. Funct. Mater., 2025, 35, 2414602.