Neware CE-4008 20V10A Battery Testing System, ENCE400820V10A

The Neware CE-4008 is a high-precision battery testing system specifically designed for R&D labs and quality control, particularly for small-format cells like the pouch cells, coin cells, and 18650s you are working with.

It can be mainly used for: (1) DCIR Testing (Direct Current Internal Resistance): The software can automatically calculate the internal resistance of your pouch cells, which is a primary indicator of how well your tabs were welded and how well your electrolyte has wetted the electrodes. (2) Cycle Life Testing: You can program thousands of "Charge-Rest-Discharge-Rest" loops to see how your battery degrades over months of use. (3) C-Rate Characterization: Easily test how your pouch cell performs under high power (fast discharge) versus high energy (slow discharge). (4) d(Q)/d(V) Analysis: The high precision of the 4008Q allows you to perform Differential Capacity Analysis. This helps you identify specific electrochemical reactions and phase transitions occurring inside your cell that aren't visible on a standard voltage curve.

References:

S. Chen, et al., Critical Parameters for Evaluating Coin Cells and Pouch Cells of Rechargeable Li-Metal Batteries, Joule, 2019, 3, 1094-1105

Y. Son, et al., Analysis of Differences in Electrochemical Performance Between Coin and Pouch Cells for Lithium-Ion Battery Applications, Energy Environmental Materials, 2024, 7, e12615.