1. Author Information and Article Abstract In 2014, Bernhard Bitzer et al. published a method for monitoring the lithium plating of battery cells by in-situ detection of battery…
Abstract LiFePO4 Cell swelling during charge/discharge can be characterized by two related but distinct measurements: thickness swelling (dimensional change under constant applied pressure) and swelling force (force generated under a fixed, constant gap).…
1. Abstract The pursuit of higher energy density in lithium-ion batteries has positioned silicon as a promising next-generation anode material due to its high theoretical capacity. However, its…
1. Introduction To enhance the energy density of lithium-ion batteries, advancements in both materials and manufacturing processes are essential. Silicon offers a theoretical specific capacity (~4,200 mAh·g⁻¹ as…
1. Author Information and Article Abstract In 2020, DanielP. Abraham’s team used an electrochemical dilatometry to characterize the thickness expansion of silicon carbon composite anode electrodes, quantified the…
1. Abstract Lithium plating is a critical failure mode during fast charging—especially at low temperatures—because plated Li reduces capacity, forms electrically “dead” Li, consumes electrolyte via SEI formation,…
Abstract Pouch cell swelling during electrochemical cycling is non-uniform: expansion force peaks in the center of the cell and is substantially weaker at the heat-sealed edges and tab regions.…
Abstract Capacity decay and loss occur during lithium-ion battery cycling, and researchers worldwide have extensively studied its underlying mechanisms. Known contributing factors include CEI/SEI passivation film formation on…
Abstract Accurate LiFePO4 SOC tracking is severely hindered across a broad operating window because the LFP battery voltage curve flat SOC estimation threshold exhibits a minute 0.07 V…
1. Author Information and Article Abstract In 2017, the J.R.Dahn research group used the in-situ characterization method to test the volume, stress and thickness changes of the electrodes…
1. Abstract This article demonstrates a practical, quantitative alternative: using a IEST Battery Pressure Mapping System(BPD1000) to instantly visualize and quantify surface pressure distribution, to characterize initial flatness…
1. Abstract A roll-to-roll process was developed to fabricate a composite lithium metal batteriesthat exhibits near-zero volume expansion during cycling. The anode uses a sandwich architecture—an electronic-insulating top…
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