Techniques for measuring the properties of lithium and lithium-ion battery anode active materials.
This SAE RP provides a set of test methods and practices for the characterization of the properties of lithium battery anode active materials.
Lithium battery anode active materials can be grouped in one of the following categories: lithium intercalation materials (including graphite, Li4Ti5O12); lithium alloying materials (including Sn, Si compounds/composites); lithium deposition materials (lithium metal).
For the purposes of this document, material properties will be examined for particulate anode active materials (graphite, Li4TiO5, Sn compounds, Si compounds) and for metallic films (lithium metal).
It is not within the scope of this document to establish criteria for the test results, as this is usually established between the vendor and customer
It is not within the scope of this document to examine the electrochemical properties of anode materials since these are influenced by electrode design. The committee considers that it is impossible to establish an electrode design that would be appropriate for all anode active materials.
Rationale: As the market for lithium batteries continues to grow, due to the evolution of motive and stationary power applications, new anode concepts are being proposed for incorporation into the batteries. There are a variety of properties that could be measured and a variety of methodologies to perform testing. This RP provides a set of test methods for the characterization of the lithium battery anode active materials, which if used consistently across different materials, will facilitate the comparison of the properties of lithium battery anode active materials.