The Influence of Temperature on the Capacity of Lithium Ion Batteries with Different Anodes

Abstract

Temperature is considered to be an important indicator that affects the capacity of a lithium ion batteries. Therefore, it is of great significance to study the relationship between the capacity and temperature of lithium ion batteries with different anodes. In this study, the single battery is used as the research object to simulate the temperature environment during the actual use of the power battery, and conduct a charge and discharge comparison test for lithium iron phosphate battery, lithium manganate battery and lithium cobalt oxide battery. In the test of capacity characteristics of lithium ion batteries of three different cathode materials at different temperatures, the optimal operating temperature range of the lithium ion battery is extracted from the discharge efficiencies obtained. According to the research results, the discharge capacity of a lithium ion battery can be approximated by a cubic polynomial of temperature. The optimal operating temperature of lithium ion battery is 20–50 °C within 1 s, as time increases, the direct current (DC) internal resistance of the battery increases and the slope becomes smaller. Between 1 s and 10 s, the DC internal resistance of the battery basically shows a linear relationship with time. In the charge and discharge process, when state of charge (SOC) 0% and SOC 100%, the internal resistance of the battery is the largest. The SOC has the greatest impact on the polarization internal resistance, and the smallest impact on the ohmic internal resistance.

Prognostics for Lithium-ion batteries for electric Vertical Take-off and Landing aircraft using data-driven machine learning

“…The results show that the maximum temperature during cruise is of high importance for SOH estimation. This is also in accordance with existing literature [48,49] where the battery temperature is shown to be highly correlated with the SOH of the battery.…”

Double-Shelled Fe–Fe3C Nanoparticles Embedded on a Porous Carbon Framework for Superior Lithium-Ion Half/Full Batteries

“…This notable efficiency can be attributed to the decreased internal resistance and enhanced ion mobility facilitated by the elevated cycling temperature. 60 Notably, the FEC700 anode also exhibited remarkable discharge capacity, reaching 794 mAh g −1 at a current rate of 50 mA g −1 . After 20 cycles, it retained an impressive 83.7% of its capacity compared to FEC700 cycled at room temperature (FEC700-RT).…”

“…Operating the coin cell at 80 °C revealed the exceptional performance of FEC700, achieving a high ICE of 92.4% (846 and 781 mAh g –1 ). This notable efficiency can be attributed to the decreased internal resistance and enhanced ion mobility facilitated by the elevated cycling temperature . Notably, the FEC700 anode also exhibited remarkable discharge capacity, reaching 794 mAh g –1 at a current rate of 50 mA g –1 .…”

Influence of operating temperature on the activation efficiency of Li-ion cells with xLi2MnO3-(1-x)LiMn0.5Ni0.5O2 electrodes

“…Figure 5c shows peaks of oxidation and reduction related to Ni and Mn reactions appearing for x = 0.7 but shifted to the higher voltage in the charging process and to the lower in the discharge process, indicating the formation of spinel structure [32,33]. In all cases, differential capacity values are very low, indicating an inefficient charge transfer process between the material and the electrolyte, possibly due to the size of the conglomerates that form the material [34].…”