Application Article Center
Application Notes & Research Insights
Discover technical articles, application cases, and characterization methods for advanced battery development."
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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Battery Japan 2026 | IEST Lights the Way with Advanced Battery Testing Innovations in Tokyo
IEST Instruments, a leading provider of advanced lithium battery testing and automation solutions, made a strong impact on Day 1 of Battery Japan 2026 (the 20th International Rechargeable Battery Expo),...
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InterBattery 2026 | IEST Instruments to Showcase Advanced Battery Testing Solutions in Seoul
IEST Instruments Successfully Participates in InterBattery 2026, Empowering the Future of Battery R&D and Manufacturing. IEST Instruments, a leading provider of advanced lithium battery testing and automation solutions, made a...
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Pouch Cell DCR Testing: Component-Level Teardown Data for Direct Current Resistance
Abstract Direct Current Resistance (DCR), also referred to as DCIR (Direct Current Internal Resistance), is a core metric that quantifies a lithium-ion battery’s total internal resistance under DC load, governing charge/discharge...
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The Impact of PAA Binder on the Conductivity and Compression Performance of Silicon-Based Anodes
Abstract A PAA binder (poly(acrylic acid)) outperforms conventional CMC/SBR binder in silicon-carbon (Si/C) anode electrodes on two measurable, electrode-level properties: electrical conductivity and compression behavior. This study uses the IEST...
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Quantifying and Analyzing 4680 Cylindrical Cell Expansion: An In-situ Study
1. The 4680 Format: Promise and the Expansion Challenge The 4680 cylindrical cell, championed by Tesla, represents a next-generation lithium battery technology. Its larger format (46mm diameter, 80mm height) aims...
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