@article{35925,
  author = {Tanvir R Tanim and Peter J Weddle and Zhenzhen Yang and Andrew M Colclasure and Harry Charalambous and Donal P Finegan and Yanying Lu and Molleigh B Preefer and Sangwook Kim and Jeffery M Allen and Francois L.E Usseglio‐Viretta and Parameswara R Chinnam and Ira Bloom and Eric J Dufek and Kandler Smith and Guoying Chen and Kamila M Wiaderek and Johanna Nelson Weker and Yang Ren},
  title = {Enabling Extreme Fast‐Charging: Challenges at the Cathode and Mitigation Strategies},
  abstract = {<p><span>Charging lithium-ion batteries (LiBs) in 10 to 15 min via extreme fast-charging (XFC) is important for the widespread adoption of electric vehicles (EVs). Lately, the battery research community has focused on identifying XFC bottlenecks and determining novel design solutions. Like other LiB components, cathodes can present XFC bottlenecks, especially when considering long-term battery life. Therefore, it is necessary to develop a comprehensive understanding of how XFC conditions degrade LiB cathodes. The present article reviews relevant cathode-focused studies and summarizes the current understanding regarding cathode performance and aging issues under XFC conditions. Dominant aging modes and mechanisms are identified at different length-scales with electrochemical correlations for LiNi</span><sub><em><span>x</span></em></sub><span>Mn</span><sub><em><span>y</span></em></sub><span>Co</span><sub><em><span>z</span></em></sub><span>O</span><sub><span>2</span></sub><span>&nbsp;(NMC)-based cathodes. A range of electrochemical techniques and models provide key insights into cathode performance and life issues. A suite of multimodal and multiscale microscopy and X-ray techniques is surveyed to quantify chemical, structural, and crystallographic NMC-cathode degradation. Cathode cycle-life is scaled to equivalent EV miles to illustrate how cathode degradation translates to real-world scenarios and quantifies cathode-related bottlenecks that hinder XFC adoption. Finally, the article discusses several cathode cycle-life aging mitigation strategies with example case studies and identifies remaining challenges.</span></p>},
  year = {2022},
  journal = {Advanced Energy Materials},
  volume = {12},
  pages = {2202795},
  month = {12/2022},
  issn = {1614-6832},
  url = {https://onlinelibrary.wiley.com/toc/16146840/12/46},
  doi = {10.1002/aenm.202202795},
  language = {eng},
}