确定锂电池阴极活性材料材料特性的推荐规程

[中文适用范围]： 该 SAE RP 提供了一套用于表征锂电池正极活性材料性能的测试方法和实践。建立测试结果标准不属于本文档的范围，因为这些标准通常是在供应商和客户之间建立的。检查浆料中正极材料的流变特性不属于本文件的范围，因为这些特性受到导电添加剂和固体负载量的影响，而这些是通过制造商和用户之间的讨论确定的。检查阴极材料的电化学性能不属于本文件的范围，因为这些性能受到电极设计的影响。委员会认为不可能建立适合所有正极活性材料的电极设计。 [外文原描述]： This SAE Recommended Practice provides a set of test methods and practices for the characterization of lithium ion battery cathode active material.It is beyond the scope of this document to establish criteria for the test results, as these are usually established between the vendor and customer. It should be noted that materials properties can vary substantially between classes of materials (e.g., LNO and LFP) and caution should be exercised when attempting to directly compare their chemical and physical properties. While these distinctions are important for the manufacturer, this document focuses on the techniques to measure the materials properties and not their absolute or relative values. Future materials such as solid-state batteries and sulfides are beyond the scope of this document.It is beyond the scope of this document to examine the rheological properties of the cathode material dispersed in a coating slurry since such properties are influenced by the conductive additive, binder, and solvent, which are determined by the coating process.It is beyond the scope of this document to examine the electrochemical properties of cathode materials since these are influenced by electrode and ultimately cell design. Due to the difference in electrical and electrochemical properties of the cathode material, it is unrealistic to establish an electrode and cell design that would justly compare different cathode active materials.Cross Reference: ASTMC1274,ASTMD26451,ASTMD618,ASTMD6304,ASTMD7481,ASTMD7785,ASTME1981,ASTME2550,ASTME537,ASTME70,J1715/2_202108