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- Title
Effects of electrode loading on low temperature performances of Li-ion batteries.
- Authors
Yaqub, Adnan; Lee, You‐Jin; Hwang, Min Ji; Pervez, Syed Atif; Farooq, Umer; Choi, Jeong‐Hee; Kim, Doohun; Choi, Hae‐Young; Cho, Seong‐Back; Doh, Chil‐Hoon
- Abstract
Poor electrochemical output of a lithium-ion battery at low temperature is an existing general concern, which restricts their application as energy storage devices. In the current work, low temperature behaviours of coin full cells prepared with specific loading amount, thickness and packing density were investigated. Graphite anode and LiNi0.6Co0.2Mn0.2O2 cathode were prepared with different laminates from low to high loading and thickness. Coin full cell discharge capacity and capacity retention was comparatively investigated both at room temperature (25 °C) and low temperature (−32 °C). The results demonstrated that the cells prepared with low loading and lesser thickness displayed a better low temperature performance in terms of capacity retention. Furthermore, electrochemical impedance spectroscopic analysis determined that at low temperature the electrodes with a lower loading showed a less charge-transfer resistance ( Rct) than that of those with a higher loading.
- Subjects
ELECTRODES; LITHIUM-ion batteries; LOW temperatures; GRAPHITE; IMPEDANCE spectroscopy
- Publication
Physica Status Solidi. A: Applications & Materials Science, 2014, Vol 211, Issue 11, p2625
- ISSN
1862-6300
- Publication type
Article
- DOI
10.1002/pssa.201431340