Innovative Non-Destructive Non-Contact Methods & Devices for Testing during Production, Optimizing Technologies, and Insuring Safety & Reliability Next Generation of Li Batteries

The safety and reliability of Li batteries are determined mainly by its basic design and chemistry. However, without adequate quality control during manufacture, defects in even the best designs can lead to inconsistent performance and early failure. Deployment of automated quality assurance technology at every stage of the manufacturing and assembly process will increase the reliability and safety of batteries while lowering overall manufacturing costs by reducing wastage and preventing defective components form being incorporated into the finished product For the successfully coordination of stages of R&D, manufacturing and applications of the Li batteries we developed the innovative non-destructive (NDT) non-contact electromagnetic, ultrasonic, holographic interferometry, gas discharge visualization, and combined methods and equipment developed. Developed non-destructive testing methods & devices enable to optimize the technology, and quality of initial materials, components, and cells, including in-line control during battery production. These methods allow insure the safety and reliability of the batteries and reduce the cost of production Achievements include optimization of materials and technologies, increasing efficiency, improving reliability and safety, and reducing costs of production. These methods enable to evaluate properties and hidden defects of initial materials, including nano-structured powder of electrode materials, polymer and solid inorganic electrolytes; properties of electrodes during coating, including the interface between current collectors and electrode mass, multi-layered electrode structures, and renewable energy devices after assembly. Results allow also predict the properties of the Li batteries during applications. Examples of applications of NDT include: Non-destructive non-contact testing of dry multi-layer structure. Non-destructive non-contact systems for determination of bulk conductivity of powdered materials. Electromagnetic non-destructive capacitance method for testing electromagnetic properties and chemical composition battery materials during synthesis, for example CFx Non-contact testing for determination of the interface resistance between current collector and active electrode mass. High voltage gas discharge visualization / High Voltage Electric Field Method for Quality Assurance of Hermetically Sealed Devices Non-contact electromagnetic measurement of thickness and electro-physical parameters electrodes d