from chemistry to pack
Choosing a solvent blend or additive package is fundamentally a search problem: a handful of components, each at a continuous concentration, combine into a space with far more candidate formulations than anyone could test by hand. The Electrolyte Solvent Ratios and Electrolyte Additives pages describe what’s in that space and why each component matters. This … Read more
Battery management systems are having their software moment. The rule-based, threshold-driven BMS that’s controlled batteries for a decade is giving way to something closer to a living system: one that learns, predicts, and increasingly runs partly in the cloud. Here are seven trends defining BMS research this year. 1. Machine learning takes over cell balancing … Read more
A new Nature Energy paper puts a number on it I’ve written before about cell electrode pressure and how it’s applied and lost across a module’s life, and about the practical business of mapping pressure distribution across a pouch cell in operando. Both of those pieces stopped short of answering the question every pack designer … Read more
Led by Dr. Galo J. Páez Fajardo and Professor Louis F. J. Piper, the paper addresses a fundamental question in battery science: how exactly do lithium-ion battery cathodes store and release energy at the sub-nanoscale?. Páez Fajardo, G.J., Dogaru, D.E., Banerjee, H. et al. Direct evidence of metal–ligand redox processes in positive electrodes during lithium-based battery operation. Nat. … Read more
Number 2 in the article 10 things about SSBs that you are often not told is 2. Pressure – a commonly hidden problem. The image of the battery pack itself was not included in the original press article, but it is available within the images released to the press. The battery pack/module is very uniform … Read more
The Lithium-Hydrogen Gas battery cell operates through redox of H2/H+ on the cathode and Li/Li+ on the anode. The universal properties of the H2 cathode enable the battery to demonstrate attractive electrochemical performance, including high theoretical specific energy up to 2825 Wh kg−1, discharge voltage of 3 V, round-trip efficiency of 99.7 %, reversible areal capacity of 5–20 mAh cm−2, all-climate characteristics with a … Read more
In order to develop cell manufacturing you need a cell manufacturing strategy. This needs to be thought through from access to the raw materials, workforce development, long term financial support and ensuring you have ongoing research. This requires sustained leadership and direction. The strategy for this from the European Battery Alliance (EBA) [2] clearly defines … Read more
One of the fundamental steps in proving new chemistry is making small cells that can be reliably charged and discharged. These small cells are assembled in argon filled gloveboxes. They are small and very fiddly to assemble. However, they need to be precisely built to reduce variation in data caused from physical mis-alignment of electrodes which … Read more