Sodium-Ion Battery Fire Suppression and Detection Design
Fire protection for a battery room is usually specified by someone who has never watched a cell vent. I have, twice, in abuse testing, and both times the s…
Sodium-Ion Battery Water-Based Electrode Processing
Water-based electrode processing keeps coming up because it removes the most expensive and most regulated fluid on the coating line. I have run NMP and aqu…
Semi-Solid State Battery Helium Leak and Insulation
I have rejected more semi-solid state battery lots over seal leaks and insulation failures than over capacity shortfalls. Capacity fades slowly and predict…
Semi-Solid State Battery Moisture and Contamination Control
Most of the semi-solid state battery failures I have been asked to autopsy in the last four years were not caused by a bad chemistry. They were caused by w…
Sodium-Ion Battery Electrolyte Salt Selection
Sodium-ion battery electrolyte salt selection is one of those decisions that looks like a purchasing detail and turns out to define cycle life, low-tempera…
Semi-Solid State Battery Tab Welding and Joint Design
After cell chemistry, nothing limits what a semi-solid state battery can deliver like its tab joints. I have watched packs built from excellent cells fail…
Semi-Solid State Battery Thermal Interface Materials
Karl Huang here, senior lithium battery engineer. When my team moved from conventional lithium battery packs to semi-solid state battery modules, the therm…
Sodium-Ion Battery Presodiation and Sodium Compensation
Sodium-ion cells lose a measurable slice of their sodium inventory during the very first charge. On the production line that loss shows up as a first-cycle…
Semi-Solid State Battery Post-Mortem Failure Analysis
When a semi-solid state battery comes back from the field, the most expensive mistake is calling it dead, scrapping it, and moving on. Every returned cell…
Lithium Battery for Film Lighting: Flicker-Free Power Budget
On a documentary shoot in Oman we lost forty minutes to a fault that was neither the fixture nor the camera. Six 300 W LED panels were pulling from a 26 V…