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Effect of Temperature on the Aging rate of Li Ion Battery Operating above Room Temperature.

Leng F, Tan CM, Pecht M - Sci Rep (2015)

Bottom Line: However, the comprehensive effects of temperature on the cyclic aging rate of LiB have yet to be found.In particular, the formation and modification of the surface films on the electrodes as well as structural/phase changes of the LCO electrode, as reported in the literatures, are found to be the main contributors to the increasing degradation rate of the maximum charge storage of LiB with temperature for the specific operating temperature range.Larger increases in the Warburg elements and cell impedance are also found with cycling at higher temperature, but they do not seriously affect the state of health (SoH) of LiB as shown in this work.

View Article: PubMed Central - PubMed

Affiliation: 1] Nanyang Technological University, School of Electrical Electronics Engineering, Blk S2.1, 50 Nanyang Avenue, Singapore 639798, Singapore [2] TUM CREATE PTE LTD, 1 Create Way, #10-02 Create Tower, Singapore 138602, Singapore [3] Global Energy Quality And Reliability Technology (G.E.Q.A.R.T). PTE.LTD, Sims Residence, 8 Lorong, 29 Geylang #06-12, Singapore 387882, Singapore.

ABSTRACT
Temperature is known to have a significant impact on the performance, safety, and cycle lifetime of lithium-ion batteries (LiB). However, the comprehensive effects of temperature on the cyclic aging rate of LiB have yet to be found. We use an electrochemistry-based model (ECBE) here to measure the effects on the aging behavior of cycled LiB operating within the temperature range of 25 °C to 55 °C. The increasing degradation rate of the maximum charge storage of LiB during cycling at elevated temperature is found to relate mainly to the degradations at the electrodes, and that the degradation of LCO cathode is larger than graphite anode at elevated temperature. In particular, the formation and modification of the surface films on the electrodes as well as structural/phase changes of the LCO electrode, as reported in the literatures, are found to be the main contributors to the increasing degradation rate of the maximum charge storage of LiB with temperature for the specific operating temperature range. Larger increases in the Warburg elements and cell impedance are also found with cycling at higher temperature, but they do not seriously affect the state of health (SoH) of LiB as shown in this work.

No MeSH data available.


Related in: MedlinePlus

The aging of m2 of graphite electrode vs. temperature.The percentage degradations vs. cycle number at different temperatures are shown in the inserted Table.
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f9: The aging of m2 of graphite electrode vs. temperature.The percentage degradations vs. cycle number at different temperatures are shown in the inserted Table.

Mentions: Graphite is the most important anode electrode material in LiB as it has high capacity, flat potential profile and possess several advantages such as low cost, long life cycle, low volume expansion and safety2324. Figure 9 shows the degradation of the m2 of the graphite electrode with cycling under various temperatures. The m2 in the ECBE model represents the effectiveness of the graphite electrode in providing its stored Li-ions19.


Effect of Temperature on the Aging rate of Li Ion Battery Operating above Room Temperature.

Leng F, Tan CM, Pecht M - Sci Rep (2015)

The aging of m2 of graphite electrode vs. temperature.The percentage degradations vs. cycle number at different temperatures are shown in the inserted Table.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4526891&req=5

f9: The aging of m2 of graphite electrode vs. temperature.The percentage degradations vs. cycle number at different temperatures are shown in the inserted Table.
Mentions: Graphite is the most important anode electrode material in LiB as it has high capacity, flat potential profile and possess several advantages such as low cost, long life cycle, low volume expansion and safety2324. Figure 9 shows the degradation of the m2 of the graphite electrode with cycling under various temperatures. The m2 in the ECBE model represents the effectiveness of the graphite electrode in providing its stored Li-ions19.

Bottom Line: However, the comprehensive effects of temperature on the cyclic aging rate of LiB have yet to be found.In particular, the formation and modification of the surface films on the electrodes as well as structural/phase changes of the LCO electrode, as reported in the literatures, are found to be the main contributors to the increasing degradation rate of the maximum charge storage of LiB with temperature for the specific operating temperature range.Larger increases in the Warburg elements and cell impedance are also found with cycling at higher temperature, but they do not seriously affect the state of health (SoH) of LiB as shown in this work.

View Article: PubMed Central - PubMed

Affiliation: 1] Nanyang Technological University, School of Electrical Electronics Engineering, Blk S2.1, 50 Nanyang Avenue, Singapore 639798, Singapore [2] TUM CREATE PTE LTD, 1 Create Way, #10-02 Create Tower, Singapore 138602, Singapore [3] Global Energy Quality And Reliability Technology (G.E.Q.A.R.T). PTE.LTD, Sims Residence, 8 Lorong, 29 Geylang #06-12, Singapore 387882, Singapore.

ABSTRACT
Temperature is known to have a significant impact on the performance, safety, and cycle lifetime of lithium-ion batteries (LiB). However, the comprehensive effects of temperature on the cyclic aging rate of LiB have yet to be found. We use an electrochemistry-based model (ECBE) here to measure the effects on the aging behavior of cycled LiB operating within the temperature range of 25 °C to 55 °C. The increasing degradation rate of the maximum charge storage of LiB during cycling at elevated temperature is found to relate mainly to the degradations at the electrodes, and that the degradation of LCO cathode is larger than graphite anode at elevated temperature. In particular, the formation and modification of the surface films on the electrodes as well as structural/phase changes of the LCO electrode, as reported in the literatures, are found to be the main contributors to the increasing degradation rate of the maximum charge storage of LiB with temperature for the specific operating temperature range. Larger increases in the Warburg elements and cell impedance are also found with cycling at higher temperature, but they do not seriously affect the state of health (SoH) of LiB as shown in this work.

No MeSH data available.


Related in: MedlinePlus