A trade — giving up energy density in exchange for a cost ceiling, full-discharge handling, and low-temperature performance: the profit-and-loss statement of sodium-ion chemistry, and why the UPS market was bound to be its first stage.
How uniformly a slurry is dispersed is a process variable that governs electrode quality, and 3,500bar ultra-high-pressure dispersion is an attempt to push the upper limit of that pressure.
LFP falls behind NCM on energy density, but leads on cost, lifespan, and thermal stability. The two chemistries aren’t better or worse than each other — they’re the result of optimizing for different axes.
High-nickel cathodes with a raised nickel share (such as NCM811) increase energy density but lower thermal stability. How much single-crystal structure and coating technology can offset this trade-off is the key question.
Solid electrolytes reduce the flammability risk of liquid electrolytes, but they introduce a new challenge: solid-solid interfacial resistance. Commercialization speed hinges on solving that interface problem.
Silicon anode materials have a theoretical capacity more than ten times that of graphite, yet in commercial batteries they remain an additive blended into graphite in small amounts.
Manganese and nickel dissolved from the cathode deposit on the anode and disturb the SEI. We read the dissolution path driven by HF and high voltage, the role of the CEI, and Enevate’s US12211998B2, tied to silicon anode cells.
High-nickel ternary (NCM) and lithium iron phosphate (LFP) give different answers even within the same lithium-ion cell.
The quality of a PBA cathode is decided by selective drying that removes zeolitic water and keeps bound water. We read the crystal water problem through the “d=0, e>0” claim of Sharp’s US9478798B2.
With oxidation stability up to about 4.21 V, halide solid electrolytes are candidates for the high-voltage cathode interface. We compare them with sulfides and oxides and read the composition claim of Panasonic’s US11784345B2.