Application Article Center
Application Notes & Research Insights
Discover technical articles, application cases, and characterization methods for advanced battery development."
Distribution of Relaxation Times (DRT) Analysis: High-Resolution Deconvolution of Overlapping Electrochemical Processes in EIS
Abstract Distribution of Relaxation Times (DRT) analysis is a mathematical deconvolution technique that converts electrochemical impedance spectroscopy (EIS) data from the frequency domain into a time-domain distribution function \(\gamma(\tau)\)— separating...
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Quantifying Longitudinal Binder Distribution in Battery Electrodes: High-Precision Layer Profiling via Automated Electrode Powder Scraping System
Abstract Longitudinal binder migration during the drying process creates compositional stratification that directly impacts the electrochemical performance, adhesion strength, and cycle life of lithium-ion batteries. Traditional manual scraping methods lack...
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Electrode Characterization in Lithium Batteries: How to Quantify Electrode Performance Across Uniformity, Wettability, and Mechanical Properties
1. What Is Electrode Characterization and Why Does It Matter? Electrode characterization in lithium-ion batteries refers to the systematic, quantitative evaluation of an electrode sheet’s electrical conductivity distribution, electrolyte wettability,...
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Why Is Coin Cell Specific Capacity Inconsistent? 7 Key Factors Affecting Specific Capacity Accuracy
Abstract Specific capacity in coin cell testing is the electrical charge released by an electrode material per gram of active material, calculated as Specific Capacity (mAh/g) = Capacity (mAh) ÷ Active Material...
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Analysis of the Correlation Between Mechanical Behavior and Aging Degradation in Lithium-Ion Batteries
Abstract The relationship between SOH (state of health) and degradation modes is that as a lithium-ion cell ages and its SOH declines, irreversible expansion force and displacement increase steadily and cumulatively,...
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Is Cycle Diving Caused by Single Particle Mechanical Failure? A Single Particle Crushing Strength Study on Ni-Rich NCM and Graphite
1. Introduction As lithium-ion batteries become ubiquitous in electric vehicles, energy density, cycle life, safety, and cost remain the primary concerns. During cycling, cathode active materials — particularly Ni-rich NCM...
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Deconstructing Double-Layer Coating Graphite Anode: Organic Compound Physical Characterization by Layer
Abstract Double-layer (dual-layer) coating is a graphite anode manufacturing technique in which a top layer of small-particle, rate-capable graphite (near the separator) and a bottom layer of large-particle, high-compaction graphite...
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Mechanical Property Evaluation of Porous Carbon and CVD Silicon‑Carbon at Single‑Particle and Powder Levels
1. Introduction Silicon stands out as a highly promising anode material for lithium‑ion batteries due to its theoretical specific capacity of 4200 mAh g⁻¹ and environmental friendliness. However, its practical application faces...
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Chemical Engineering Journal: IEST SPFT2000 Validates High-Entropy P2/O3 Biphasic Cathode Resilience via Lattice Regulation
Abstract A P2/O3 mixed phase cathode integrates the high structural stability of P2-type domains with the high capacity of O3-type configurations, solving the critical rate-stability trade-off in sodium-ion batteries. By...
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Assessing the Air Degradation Behavior of Sodium Layered Oxide Cathodes
1. Introduction As the new energy market expands and application scenarios diversify, sodium‑ion batteries have attracted considerable attention due to the abundant sodium resources and low material cost. They show...
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Dynamic EIS Reveals Real-Time Battery Impedance Measurement During Charge and Discharge
Abstract Dynamic EIS (DEIS) is an electrochemical measurement technique that captures battery impedance spectra in real time while the cell is actively charging or discharging — eliminating the steady-state requirement...
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International Battery Seminar 2026 | IEST Instruments Invites You to Booth 1022 in Orlando
IEST Instruments, a leading provider of advanced lithium battery testing and automation solutions, is excited to participate in The 43rd International Battery Seminar 2026, one of the world’s most influential...
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