Development of a practical, low cost high voltage electrolyte to enable lithium ion battery (LIB) operation above 4.5V will enable high energy density cells for vehicle applications. Towards that end, Dow Energy Materials is investing in programs to develop safe, cost-effective, high voltage electrolyte solutions. This effort leverages core capabilities of Dow's large R&D organization, such as fundamental modeling, low cost synthesis methods, and combinatorial formulation development. A practical solution to a high voltage electrolyte formulation requires all of these elements for success. This multi-faceted approach was utilized by Dow to determine the viability of ethylmethoxyethyl sulfone (EMES) as a high voltage electrolyte in full lithium ion cells.
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