SAE J3042_202101

This SAE Recommended Practice provides a set of test methods for characterizing lithium-ion battery electrolytes. These test methods are applicable to existing electrolyte materials and allow different facilities to conduct testing in a common manner. Solid electrolytes are expected to be commercially used for large scale batteries in the future. However, characterizing solid electrolytes may require methods different from those contained in this document. Such methods are not addressed in this document. It is not within the scope of this document to establish acceptance criteria for test results, as this is usually established between the vendor and customer. It is also not within the scope of this document to examine the electrochemical properties of an electrolyte, since these are influenced by electrolyte composition. In addition, establishing an electrolyte composition appropriate for all applications is not feasible. As the market for lithium-ion batteries continues to grow, new electrolyte concepts are being proposed for incorporation into these batteries. A variety of physical and chemical properties can be measured with a variety of testing methodologies. This SAE Recommended Practice provides a set of test methods to characterize lithium-ion battery electrolytes. These methods can enable comparisons of supplier materials to assure a consistent and fair analysis for sourcing selection. Pass/fail criteria is not included in this document, as it is the decision of each manufacturer to establish their limits for desired material properties.