Application Article Center

Application Notes & Research Insights

Discover technical articles, application cases, and characterization methods for advanced battery R&D.

Showing 285 articles

IEST Instrument binder layer-by-layer quantitative characterization solution: featuring LEPS2000 automated electrode powder sampling system for precision depth-resolved stripping (cathode, anode, wet, dry, solid-state) and LECF electrode coating peel strength tester, with TG/DSC through-thickness binder distribution profiling (CMC vs SBR gradients) and displacement-dependent peeling cohesive strength analysis.

Anode Materials Binder

2026/10/16

Binder Distribution Characterization in Lithium-Ion Electrodes: Industrial Layer-by-Layer Solution

2026/10/13

Which Instruments Are Used for Advanced Solid-State Battery Testing?

Figure 3. Schematic of the electrode resistance test configuration, combining a thickness measurement system, a resistance measurement system, and a pressure control system acting on Au-coated Cu (Au@Cu) electrodes that sandwich the sample for four-point current/voltage measurement.

Coating Electrode

2026/09/23

One Resistance Curve, Full Verdict: A New Way to Characterize Sulfide Composite Electrode Uniformity

IEST Instrument and TeraView team members at TeraView's UK office during the technical exchange that supported the two companies' strategic partnership.

2026/09/23

Strategic Partnership｜IEST Instrument and TeraView Join Forces to Advance Battery Electrode Inspection

Figure 5. Powder resistivity versus pressure (10–350 MPa) for four graphite samples, measured using the IEST PRCD3100, showing artificial graphite (AGr-1, AGr-2) resistivity roughly three orders of magnitude lower than natural graphite anode (NGr-1, NGr-2) at low pressure — for example, 7.0×10⁻⁵ Ω·cm for AGr-1 versus 0.014 Ω·cm for NGr-1 at 10 MPa.

Anode Materials Electrode

2026/09/20

How to Choose a Lithium Battery Anode: Natural Graphite vs. Artificial Graphite

Synchronous evolution of the 10 Hz EIS imaginary part and nine-point surface temperature during stepwise penetration (Group B), showing an overall declining trend in the EIS imaginary part punctuated by pronounced fluctuations at each penetration/rest interval, including a sharp spike to approximately 0.28 mΩ and a subsequent sharp drop to approximately −0.18 mΩ near the final penetration step (roughly 1300–1400 s), while surface temperature rose only gradually, from approximately 28–29°C to approximately 30–31°C.

Cell Solid-State Battery

2026/09/15

Real-Time EIS Evolution During Battery Nail Penetration

Multi-dimensional electrode performance factors for sodium-ion batteries: the ionic conductive network, the electronic conductive network, electrolyte wettability, and electrode mechanical properties, linked by uniformity and overall performance.

Anode Materials Cathode Materials

2026/09/08

Sodium-Ion Battery High Power and Low-Temp Performance? Electrode Performance Is the Key!

IEST Instrument featured in Advanced Materials: IEST SWE2110 in-situ cell swelling and IEST BER2500 electrode resistance tester applied in anode-free lithium metal battery research by Liumin Suo's team to decouple energy density-stress trade-offs under constant thickness mode (CTM).

Battery Slurry Cathode Materials

2026/09/08

Advanced Materials: How to Achieve Both High Energy Density and Low Expansion in Anode‑Free Lithium Metal Batteries? IEST SWE2110 and BER2500 Reveal the Stress‑Regulation Mechanism of SAB

Coin Cell

2026/09/07

Why Is the Open-Circuit Voltage of a Hand-Assembled Coin Cell Always Low? Six Root Causes

Diagram comparing resistance, internal resistance, and impedance parameters in a lithium-ion battery

Cell Coin Cell

2026/09/07

Battery Resistance vs Internal Resistance vs Impedance: Which One Actually Limits Performance?

Electrode flexibility enhancement by coating: bare aluminum foil (12 μm) shows 1.1 cycles vs coated electrode (177 μm) at 1.9 cycles — a 66.7% improvement in folding resistance for cathode electrodes.

Coating Current Collector

2026/09/02

Quantifying Electrode Brittleness in Lithium-ion Battery Manufacturing: Why Automated Folding Fatigue Metrology Outperforms Manual Inspection

$Multi-scale lithium-ion battery failure mechanisms, linking active-material stability, binder interface behavior, mechanical stress, battery mechanical properties fracture, and external mechanical loading to cell failure.$

Anode Materials Cathode Materials

2026/08/31

Battery Mechanical Properties: The Root Factor Governing Long-Cycle Life from Single Particles to Full Cells

Powder resistivity and compressed-density curves for conductive carbon measured under increasing pressure, showing the coupled electrical and compaction response.

Battery Slurry Coin Cell

2026/08/28

Conductive Additives for Li-ion Batteries: From Powder Resistivity to Battery Rate Capability

Battery application scenarios by IEST Instrument illustrating Electric Vehicles (EV) and Energy Storage Systems (ESS) where advanced multi-level battery characterization and testing solutions are implemented.

Anode Materials Cathode Materials

2026/08/27

Power Battery vs. Energy Storage Battery Testing: A Comprehensive Comparison of Standards, Materials, and Methods

Lithium-ion battery degradation mechanisms — capacity loss, internal resistance growth, and lithium inventory depletion — categorized for failure analysis of NCM/Si pouch cells.

Current Collector Electrode

2026/08/27

Lithium Battery Failure Analysis: A 7-Dimensional Characterization Guide for Root Cause Identification

single-crystal cathode research published in Advanced Powder Materials: IEST SPFT2000 Single Particle Force Tester by IEST Instrument measuring single-particle compressive strength (Force-Displacement curves) and micro-cracking behavior for SCNCM and Zr/B modified cathodes across 500 and 1000 cycles, citing IEST Instrument technical support.

Cathode Materials Pouch Cell

2026/08/25

Advanced Powder Materials: IEST SPFT Enable B/Zr Co‑Doping for Lattice Regulation and Internal Stress Relief in Ultra‑High‑Nickel Single‑Crystal Cathodes

Nature Energy paper on electronic conductivity of solid electrolytes causing physical self-discharge in all-solid-state batteries.

Electrolyte Solid-State Battery

2026/08/24

Nature Energy: Xueliang Sun’s Team Reveals Solid Electrolyte Electronic Conductivity as the Root Cause of Self-Discharge in ASSBs

Advanced Materials article header on single-crystal Ni-rich cathodes alongside IEST SPFT2000 single particle tester, paper Acknowledgements citing IEST support, and single particle force-displacement curves.

Cathode Materials Cell

2026/08/06

Advanced Materials: IEST SPFT2000 Quantitatively Stress-Chemical Coupling Drives Multi-Step Phase Transition Degradation in Single-Crystal Ultra-High-Nickel Cathodes

Figure 1. SEM images of cathode particles under different SOCs

Cathode Materials Cell

2026/08/05

Crushing Strength Evolution of NCM Cathode Particles at Different SOC

Correlation Between Separator Ionic Conductivity and Battery Cycle Stability

Coin Cell Electrolyte

2026/08/04

Correlation Between Separator Ionic Conductivity and Battery Cycle Stability

Advanced Materials Electrochemical Sintering Enables Stress-Lensed Silicon Anodes for Long-Life All-Solid-State Batteries Validated by IEST SPFT2000

Anode Materials Powder Materials

2026/07/28

Advanced Materials: Stress-Lensed Electrochemical Sintering Enables Fast and Stable Lithium-Silicon Alloy Chemistry in All-Solid-State Batteries — Validated by IEST SPFT2000

Powder Compression Test for Lithium-Ion Battery Electrode Powders: Heckel Equation and Elastic Recovery Analysis

Anode Materials Cathode Materials

2026/07/27

Multi‑Level Mechanical Property Testing Series: Key Technical Analysis of Powder Compression Testing

Nature Nanotechnology article "Coherent twins for manufacturing thick lithium-rich battery positive electrodes" showing the IEST SPFT2000 single-particle force properties tester used to measure compressive mechanical strength of CTLRO and PLRO cathode particles

Cathode Materials Electrode

2026/07/23

IEST SPFT2000 Enables Nature Nanotechnology Breakthrough: Coherent Twin Boundaries Unlock Ultra‑High Loading Thick Li‑Rich Cathodes

Journal of Energy Storage 2026 Mercedes-Benz study on NMC811 silicon-carbon pouch cell in-situ expansion testing under buffer foam and rigid mechanical constraint

Electrode Pouch Cell

2026/07/14

Journal of Energy Storage: Silicon-Carbon Pouch Cell In-Situ Swelling Testing Under Buffer Foam Mechanical Constraint

IEST GVM2200 in-situ gas and volume monitoring system schematic — integrating high-precision mechanical testing, dedicated software, multi-function test chamber with auxiliary systems, charge/discharge tester with three-electrode monitoring, and cyclic temperature control — used to quantify thermal-induced gas evolution and swelling behavior of solid polymer electrolyte pouch cells in high-voltage lithium metal batteries.

2026/07/13

Advanced Energy Materials 2024: IEST In‑Situ Gas Evolution Solution Quantifies Thermal Stability of High‑Safety Solid Polymer Electrolytes

Modulating surface anionic redox chemistry toward highly stable Li-rich cathodes with negligible oxygen loss — Xiamen University, Zhejiang University, Argonne National Laboratory research in ACS Nano

Cathode Materials Pouch Cell

2026/07/09

ACS Nano: Surface Anionic Redox Modulation Achieves Negligible Oxygen Loss in Li-Rich Cathodes — Volume Change Quantified with IEST GVM2200

Rational design of Li-rich hybrid cathode with 3D interstitial network — LMNO layered oxide blended with Ni-based disordered rock-salt DRX particles for reversible oxygen redox

Cathode Materials Powder Materials

2026/07/08

Energy Storage Materials: IEST PRCD1100 Validates High Compaction Density & Conductivity in 3D Interstitial Li-Rich Hybrid Cathodes

Unraveling stepwise pressure effects on interfacial structure and electrochemical dynamics in sulfide solid-state batteries

Anode Materials Cathode Materials

2026/06/29

Unraveling Stepwise Pressure Effects on Interfacial Structure and Electrochemical Dynamics in Sulfide-based All-solid-state Lithium Batteries

IEST SPECT1000 Powers JACS Breakthrough NJU & CATL Jointly Unveil Graphite Anode Fast-Charging Bottlenecks, Reshaping the Understanding of Graphite Lithiation Kinetics.

Anode Materials Coin Cell

2026/06/24

IEST SPEC1000 Powers JACS Breakthrough: NJU & CATL Jointly Unveil Graphite Anode Fast-Charging Bottlenecks, Reshaping the Understanding of Graphite Lithiation Kinetics.

IEST PRCD3100 powder resistivity measurement system and powder density tester setup, featuring the main testing host, customized testing jigs, pre-vibration meter, and demoulding meter for advanced battery material analysis.

Anode Materials Cathode Materials

2026/06/22

How to Accelerate Battery R&D and Quality Control with Powder Resistivity and Compaction Density Measurement

$Crushing force comparison for two silicon-carbon materials SC1 and SC2, two hard carbon materials HC1 and HC2, and one resin carbon RC at different particle sizes measured by IEST SPFT2000 single particle testing system — bar chart showing crushing force (mN or N) for 4.5µm and 8.5µm particles of SC1, SC2, HC1, HC2 and 8.5µm and 15µm particles of RC, demonstrating that crushing force increases with particle size for all three anode material types because larger cross-sectional area and volume require greater external force to fracture$