DMP (1,3-Dimethoxypropane, >99.5%) as Battery Electrolyte Co-Solvent and Additive, 5-25 g/bottle, CBESADMP
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1,3-Dimethoxypropane (commonly designated as DMP) is a specialized aliphatic diether engineered as an advanced solvent, co-solvent, and solvation-sheath modifier for next-generation lithium-metal and high-voltage lithium-ion batteries. By extending the central methylene bridge compared to traditional short-chain glymes (such as 1,2-dimethoxyethane or DME), DMP tailors the cation coordination environment to significantly improve oxidative stability.
Its main functional roles in electrolyte engineering are: (1) Solvation Sheath Modification: DMP alters the primary lithium-ion coordination shell by striking a balance between adequate salt dissolution and restrained electron donation. This suppresses the formation of solvent-separated ion pairs (SSIPs) and encourages anion incorporation into the inner coordination sphere. (2) Enhanced Anodic/Oxidative Stability: The six-membered lithium-chelate configuration substantially raises the lowest unoccupied molecular orbital (LUMO) and highest occupied molecular orbital (HOMO) stability margins, overcoming the severe oxidative degradation limitations that plague conventional glymes at high potentials. (3) Anion-Derived Interphase (SEI/CEI) Formation: By steering the inner-sphere solvation structure toward anion coordination, DMP promotes the preferential decomposition of counter-anions during early-stage cycling, yielding a robust, inorganic-rich Solid Electrolyte Interphase (SEI) on reactive metal anodes.
Its main electrochemical applications are: (1) High-Voltage Lithium-Metal Batteries: Integrated into liquid or localized high-concentration electrolyte (LHCE) formulations to enable stable, long-term cycling of cells paired with high-voltage layered oxide cathodes (such as NMC811) operating above 4.3 V. (2) Safer Glyme-Alternative Formulations: Deployed as a direct, structurally optimized substitute for lower-molecular-weight linear ethers, avoiding severe health and regulatory classifications (such as reproductive toxicity hurdles associated with DME) while maintaining high ionic conductivity and low liquid-phase viscosity.
| Part Number |
CBESADMP (C-BESA-DMP) |
| CAS |
17081-21-9 |
| Chemical Formula |
C5H12O2  |
| Appearance |
Colorless Liquid |
| Purity |
>99.0% (Battery Grade) |
| Molecular Weight | 104.15 g/mol |
| Package Size | 5 g, 10 g, and 20 g/bottle |
Notes: Please store the DMP in the glovebox due to its sensitivity to humidity and oxygen.
References:
- S. Chen, et al. Unveiling the Critical Role of Ion Coordination Configuration of Ether Electrolytes for High Voltage Lithium Metal Batteries, Angew Chem Int Ed, 2023, 62, e202219310
- Y. Wang, et al. Ether-Modified Nonflammable Phosphate Enabling Anion-Rich Electrolyte for High-Voltage Lithium Metal Batteries, Adv. Mater., 2024, 36, 2312302