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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.

IEST Application Engineering Team
2026/09/23
2026/09/24

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

Abstract Composite electrode uniformity in a sulfide all-solid-state battery can be evaluated by measuring how…

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

IEST Application Engineering Team
2026/09/23

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

Abstract TeraView, a UK-based company specializing in terahertz measurement technology, and IEST Instrument have entered…

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.

IEST Application Engineering Team
2026/09/20

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

Abstract Choosing between natural graphite anode and artificial graphite anode materials for a lithium-ion battery…

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.

IEST Application Engineering Team
2026/09/15
2026/09/23

Real-Time EIS Evolution During Battery Nail Penetration

Abstract During battery nail penetration, real-time electrochemical impedance spectroscopy (EIS) at a 10 Hz characteristic…

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.

IEST Application Engineering Team
2026/09/08

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

Abstract Higher power output and better low-temperature performance in sodium-ion batteries depend heavily on porous…

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).

IEST Application Engineering Team
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

Abstract High energy density and low expansion in anode-free lithium metal battery (AF-LMB) do not…

Figure 3. Open-circuit voltage (OCV) of LiFePO4 (LFP) coin half-cells assembled using the IEST CAAS1200 automated coin cell assembly system, across 5 test groups of 40 cells each (200 cells total), with OCV values falling between 3.24 V and 3.28 V.

IEST Application Engineering Team
2026/09/07

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

Abstract A low open-circuit voltage (OCV) in a freshly assembled lithium coin cell is a…

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

IEST Application Engineering Team
2026/09/07
2026/09/24

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

Abstract Battery internal resistance, resistance, and impedance are three related but distinct electrical parameters used…

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.

IEST Application Engineering Team
2026/09/02

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

Abstract Electrode brittleness testing evaluates the mechanical deformation tolerance of lithium-ion battery current collectors and…

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

IEST Application Engineering Team
2026/08/31

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

Abstract Battery mechanical properties represent the fundamental physical factors governing lithium-ion battery degradation, cycle life…

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