MTI 18650 Vent Cap CT Scans

<p><strong>Purpose:</strong></p>

<p>Computed tomography (CT) scans of the positive terminal assembly from a commercial lithium-ion battery cell were collected (model: MTI 18650). The data may be used to reconstruct the three-dimensional geometry of the positive terminal assembly.  The CT scans may also be used to inspect and analyze key safety features such as the current interrupt device (CID) and vent mechanism.</p>

<p><strong>Method:</strong></p>

<p>The following excerpt is from the paper by Li et al. [1]:</p>

<blockquote>... CT scans were conducted using an X50 industrial X-ray inspection system from North Star Imaging (NSI).  The CT scans had spatial resolution of 16.6μm.  3D renderings of the CT scans were created with a filtered back projection algorithm using ex-X CT Software from North Star Imaging.   The 3D rendering dimensions were calibrated by scanning a reference standard with the same scan parameters and were viewed using efX-CT Lite v. 2.0.5.0 software. ... CT scans were conducted for three different states of failure: intact (normal operation), CID activated, and vent activated.</blockquote>

<p><strong>Quick Start Guide:</strong></p>

<ol>
<li>Download bundle</li>
<li>Open executable file for one of three operational states: intact, CID activated, or vent activated</li>
<li>Use "X", "Y", or "Z" keys to change viewing plane</li>
<li>Use spacebar to toggle between viewing window and scan data</li>
<li>Use mouse left-click and drag to rotate plane</li>
<li>Use mouse wheel to move viewing plane through the volume</li>
<li>Use the histogram tool to improve contrast and brightness</li>
<li>Extract 2D slices to make measurements of length, diameter, angle, etc.</li>
</ol>

<p><strong>REFERENCES:</strong></p>

<p>[1] Li, W., Crompton, K. R., Hacker, C., & Ostanek, J. K. (2020). Comparison of Current Interrupt Device and Vent Design for 18650 Format Lithium-ion Battery Caps. <em>Journal of Energy Storage</em>, 32, 101890. doi:<a href="https://doi.org/10.1016/j.est.2020.101890" target="_blank">https://doi.org/10.1016/j.est.2020.101890</a></p>

<p><strong>DISTRIBUTION STATEMENT A.</strong> Approved for public release: distribution unlimited.</p>

本数据集包含型号为MTI 18650的商用锂离子电池的正极端子组件的计算机断层扫描（computed tomography，CT）影像。