Electrolyte materials for long-lasting, thermally stable, safer, lithium-ion batteries
Sionic Energy’s safer, (non-volatile) electrolyte additives use a proprietary Multi-Functional Molecule (MFM) design methodology that enables specific critical electrochemical function enhancements to maximize the performance of base electrolyte formulations. Sionic’s MFM design methodology produces tailored additives, designed rapidly, to provide greater performance at a lower cost.
Sionic Energy Electrolyte Additives
Our electrolyte additives are designed to form stable interphases on lithium-ion battery anodes and cathodes, improving battery safety and high-voltage stability, for enabling wider operating temperatures while improving cycle life and power performance.
Safety Electrolyte Additives (SEA)
Thermal runaway is a major safety concern hindering the large-scale application of Ni-rich cathode materials due to cathode instability and oxygen evolution. The thermal stability of Ni-rich cathodes is attributed to the loss of oxygen, especially caused by the oxidation of lattice oxygen in H3 phase of the cathode. Sionic’s safety additives limit such oxidation kinetics and thereby reduce the self-heating rate of thermal runaway reactions.
Anode Electrolyte Additives (AEA)
Sionic’s electrolyte additives based on thio-phosphate core chemistry are designed to form robust SEI (Solid Electrolyte Interphase) on the surface of the anode to reduce resistance growth and improve charge rate performance.
Cathode Electrolyte Additives (CEA)
Sionic’s electrolyte additives, based on phosphate core chemistry, are designed to form robust CEI (Cathode Electrolyte Interphase) on the surface of the cathode to prevent solvent oxidation catalyzed by Ni and mitigate the resistive film growth and reduce gas generation.
|Li-ion Electrolyte Additives||Safety Electrolyte Additives - SEA||Anode Electrolyte Additives - AEA||Cathode Electrolyte Additives - CEA|
|Target Cell Chemistry
|NMCs, NCA, LFP & LCO / Gr, Gr+Si||NMCs, NCA/ Gr, Gr+Si||NMCs, NCA/ Gr, Gr+Si|
|Additive Function||Lowers internal resistance
Lowers self-heating rate
|Lowers internal resistance
Enhances SEI Layer formation for performance & resiliency
|Lowers internal resistance
Minimizes side reactions & capacity loss
|Benefits||Mitigates thermal runaway risks
Eliminates cell-to-cell thermal propagation
Excellent high-temperature capacity retention & recovery
Less expensive supplement & replacement for fluoroethylene
|Extends cycle life
Replacement of sultone for environmental regulation acceptance
|Reduces capacity loss during shelf life
Extends cycle life in high-temperature operating environments
Less expensive supplement & replacement for LiPO2F2, LiDFP2
|Applications||Safety-critical performance applications & products||High-capacity silicon anode batteries designs
Long-duration cycle life volume requirements
Environmentally-restricted material cell designs
|Products requiring a long shelf- or calendar-life
High temperature operating environments
Cost-sensitive applications & products
Nickel-rich cathode cell designs
Explore data sheets for product performance