2 articles published in JoVE
Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries Robert D. Minter*1, Daniel Juarez-Robles*2, Conner Fear2, Yevgen Barsukov3, Partha P. Mukherjee2 1Department of Mechanical Engineering, Texas A&M University, 2School of Mechanical Engineering, Purdue University, 3Battery Management Systems, Texas Instruments Inc. Three-electrode cells are useful in studying the electrochemistry of lithium-ion batteries. Such an electrochemical setup allows the phenomena associated with the cathode and anode to be decoupled and examined independently. Here, we present a guide for construction and use of a three-electrode coin cell with emphasis on lithium plating analytics.
Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators Joshua Small1, Adam Fruehling2, Anurag Garg3, Xiaoguang Liu1, Dimitrios Peroulis3 1Department of Electrical and Computer Engineering, University of California, Davis, 2Digital Light Projection (DLP) Technology Development, Texas Instruments, 3Birck Nanotechnology Center and the Department of Electrical and Computer Engineering, Purdue University The robust device design of fringing-field electrostatic MEMS actuators results in inherently low squeeze-film damping conditions and long settling times when performing switching operations using conventional step biasing. Real-time switching time improvement with DC-dynamic waveforms reduces the settling time of fringing-field MEMS actuators when transitioning between up-to-down and down-to-up states.