Application Article Center
Application Notes & Research Insights
Discover technical articles, application cases, and characterization methods for advanced battery development."
Europe’s Largest Battery Maker Northvolt Announces Bankruptcy Filing Of Its Subsidiary
Summary Bankruptcy filing by a subsidiary: Northvolt Ett Expansion AB, which was responsible for the “gigafactory” expansion project in northern Sweden, filed for bankruptcy due to project cancellation. The company’s...
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Comparative Analysis of Electrode Resistance Testing: Two Probe and Four Probe Methods
Abstract The two probe method and four probe method differ primarily in how they handle contact resistance—the impedance at the junction between a measurement probe and the sample surface. The two...
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Influence of High Intensive Dry Mixing and Calendaring on Relative Electrode Resistivity Determined Via An Advanced Two Point Approach
Literature appreciation: Influence of High Intensive Dry Mixing and Calendaring on Relative Electrode Resistivity Determined Via An Advanced Two Point Approach 1. Author Information and Article Abstract Bastian Georg Westphal...
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Battery Electrode Resistance’s Analysis and Research On The Stability and Uniformity
1. Preface The method used in this article is a further improvement on the two-probe method. It adopts a four-wire method plus a controllable pressure double-disc electrode to test the...
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SK On Announces Layoff Plan Amid Weak EV Demand — What It Means for Employees and the Battery Industry
1. Introduction South Korean battery maker SK On has unveiled a voluntary layoff package and an unpaid-leave-for-study option as it seeks to cut costs and boost agility amid slowing electric...
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Evaluating Battery Electrode Formulations and Processes via Electrode Resistance Measurement
1. Abstract Electrode resistance is a sensitive, process-coupled metric that reflects slurry formulation, conductive-additive loading and calendering/compaction conditions. This study uses a controlled four-probe, pressure-applied measurement workflow (BER1300) to quantify...
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Single and Double-Sided Electrode Sheet Conductivity and Compaction Performance Analysis
1. Preface Lithium-ion (Li-ion) batteries have become one of the main energy storage solutions for the consumer, power and energy storage markets due to their long cycle life and high...
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Battery Cell Consistency: How Voltage, Capacity, and Internal Resistance Mismatch Create the “Buckets Effect” in Battery Packs
Abstract Battery cell consistency is one of the difficulties that major battery cell manufacturing companies are focused on. During manufacturing, fluctuations in materials, equipment, and environment produce minor cell-to-cell differences that...
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Rapid Screening of Electrolyte Rate Performance via Electrode Tortuosity and the McMullin Number
Abstract The MacMullin number (also spelled McMullin number; symbol \(N_m\), defined as \(N_m = \tau/\varepsilon = \sigma/\sigma_{eff}\)) quantifies effective ionic transport resistance inside porous battery electrodes — the ratio of...
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How to Evaluate Coating Uniformity on Current Collectors: A Resistivity-Based Method
1. Preface Copper and aluminum foils serve as essential current collectors in lithium-ion battery electrodes, conducting electrons and supporting the active material layer. Their chemical and electrochemical stability significantly impacts cell performance,...
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Analysis of Swelling Thickness and Swelling Force in LiFePO4 Cells
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). Using the IEST...
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Application Issues Analysis of Si Anode in High Energy Density Lithium-ion Batteries
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 practical implementation...
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