Kinetic study of low temperature capacity fading in Li-ion cells

Singer, Jan; Birke, Kai Peter

doi:10.1016/j.est.2017.07.002

Cited by 28 publications

(17 citation statements)

References 13 publications

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“…The capacity retentions of the discharge capacities at 0.2 C under −10 and −20 °C compared to those at 25 °C decrease with the temperature dropping for both the Base and Mix electrolytes, which probably arise from the decrease of ionic conductivity of the electrolytes and the slower charge transfer in the bulk phase of electrode materials. 35,36 However, the low-temperature discharge capacity retentions of the cells using the Mix electrolyte are 79.53% at −10 °C and 67.10% at −20 °C, respectively, which are higher than those of the cells using the Base electrolytes with/without a single additive, demonstrating the enhanced electrochemical kinetics in the cells containing the Mix electrolyte. Similar to the results of the charge/discharge rate capability at 25 °C (Figure 2a and 2b), it seems that the enhanced kinetics at low temperature for the Mix electrolyte also arises from the use of DTD and LiFSI additives.…”

Section: ■ Results and Discussionmentioning

confidence: 92%

Simultaneous Interphase Optimizations on the Large-Area Anode and Cathode of High-Energy-Density Lithium-Ion Pouch Cells by a Multiple Additives Strategy

Zang

Fang

et al. 2020

ACS Appl. Mater. Interfaces

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Prior to the maturation of next-generation energy storage devices, the actual lithium-ion batteries for commercial purposes are still expected to fulfill some critical requirements, among which the high energy density, wide operating temperature range, and related long-term cycling stability are the most challenging issues. Herein a multiple additives strategy is employed to simultaneously optimize the solid electrolyte interphase on the large-area anode and cathode in a 2 Ah artificial graphite (AGr)/LiNi 0.5 Co 0.2 Mn 0.3 O 2 (NCM523) pouch cell with high gravimetric (>260 Wh kg −1 ) and volumetric (>630 Wh L −1 ) energy density. By introducing a rational mixture of electrolyte additives, a highly sulfurized surface layer and a uniform and thin passivation layer are separately formed on the anode and cathode of the AGr/NCM523 pouch cell, exhibiting high storage stability at 60 °C, much improved discharge capacity at −10 and −20 °C, high anodic stability at high voltage of 4.4 V, and stable cyclic performance with a capacity retention of 85.5% after 500 cycles, significantly outperforming the value of 75.7% after only 200 cycles of the cell without additional additives. These results demonstrate the critical effect of simultaneous optimizations of anode and cathode interphase layers to construct stable high-energy-density lithium-ion pouch cells.

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Section: ■ Results and Discussionmentioning

confidence: 92%

Simultaneous Interphase Optimizations on the Large-Area Anode and Cathode of High-Energy-Density Lithium-Ion Pouch Cells by a Multiple Additives Strategy

Zang

Fang

et al. 2020

ACS Appl. Mater. Interfaces

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“…reasonable predictions and robustness, the k-ε turbulence model is used considering a 5% turbulence intensity, which is a Reynolds-averaged Navier-Stokes modeling approach. 10,21,32 The turbulent kinetic energy and eddy viscosity equations are provided in Equations (7) and (8), respectively. 26,45 ∂ρk ∂t…”

Section: ∂ ∂Tmentioning

confidence: 99%

“…For a coolant subdomain, mass conservation, Navier-Stokes equations (momentum conservation), convection diffusion equations as well as turbulent equations are applicable. The governing conservation equations are shown in Equations ( 1)- (7). The energy conservation equation for a lithium-ion battery is shown in Equation (1).…”

Section: Conservation Equationsmentioning

confidence: 99%

“…The performance of a lithium‐ion battery is significantly influenced by its operating temperature 2 . For lithium‐ion batteries, at low temperatures, the power output decreases and at high temperatures, the capacity degrades 6,7 . When operated at high rates of charging and discharging, lithium‐ion cells dissipate large amounts of heat 8 .…”

Section: Introductionmentioning

confidence: 99%

“…2 For lithium-ion batteries, at low temperatures, the power output decreases and at high temperatures, the capacity degrades. 6,7 When operated at high rates of charging and discharging, lithium-ion cells dissipate large amounts of heat. 8 An inefficient design for the thermal management systems for lithium-ion batteries results in heat accumulation and a subsequent rise in the operating temperature, thus causing safety and capacity degradation issues.…”

Section: Introductionmentioning

confidence: 99%

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Numerical study on sensitivity analysis of factors influencing liquid cooling with double cold‐plate for lithium‐ion pouch cell

et al. 2020

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Structural and flow parameters have a substantial effect on the thermal and hydraulic performance of a lithium-ion battery and cooling system. In this study, a computational fluid dynamics model is developed for double coldplate based liquid cooling for a 20 Ah lithium-ion pouch cell, and then validated based on experimental data. An orthogonal test consisting of single factor and multi-factor analysis is designed to obtain the sensitivity of four factors, including the inlet coolant temperature, inlet coolant volume flow rate, number of cooling channels, and maximum channel width that influence the thermal behavior of the pouch cell. The multi-objective optimization for minimizing maximum temperature, maximum temperature difference and average pressure drop using genetic algorithm is conducted subjected to constraints of operating conditions for optimum battery performance. Based on the multiobjective optimization, the obtained minimized values for maximum temperature (T max), maximum temperature difference (ΔT max) and average pressure drop (ΔP avg) are 25.25 C, 0.22 C and 48.76 kPa. The minimized objective functions are obtained at the inlet coolant temperature of 25 C, inlet coolant volume flow rate of 240 mL/min, number of cooling channel of 10 and maximum channel width of 1.70 mm.

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Temperature effect and kinetics, LiZr ₂ ( PO ₄ ) ₃ and Li _1. ₂ Al ₀ _. ₂ Zr _1<

Akkinepally

Reddy

Manjunath

et al. 2022

Intl J of Energy Research

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Summary A NASICON‐type LiZr2(PO4)3 (LZP) and Li1.2Al0.2Zr1.8(PO4)3 (LAZP) anode materials are synthesized via a facile method, materials were characterized by a variety of structural techniques, investigated the electrochemical performance for rechargeable battery applications. A highly stable rhombohedral phase of LAZP is noticed at room temperature, with a discharge capacity of 909 mAh.g−1, which is 1.6 times higher than that of LZP. Further, the highly stable charge storage performance is observed up to 3000 cycles with a Coulombic efficiency of 99%. For the first time, we investigated the in‐situ temperature effect on the discharge capacity of the assembled anode material, found a strong effect on the discharge capacity, and achieved ~120 and 149 mAh.g−1 at 65°C for LZP and LAZP anodes. Furthermore, the real‐time charge holding effect of LAZP cell is performed with the computer, the cell worked well in the CMOS battery slot without a CMOS battery error during CPU turn‐on condition for 1536 h. In brief, an optimized electrode material of LAZP showed greater stability and capacity with high efficiency compared with LZP even at elevated temperatures. Hence, LAZP may be utilized to fabricate a coin cell for real time applications.

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Kinetic study of low temperature capacity fading in Li-ion cells

Cited by 28 publications

References 13 publications

Simultaneous Interphase Optimizations on the Large-Area Anode and Cathode of High-Energy-Density Lithium-Ion Pouch Cells by a Multiple Additives Strategy

Simultaneous Interphase Optimizations on the Large-Area Anode and Cathode of High-Energy-Density Lithium-Ion Pouch Cells by a Multiple Additives Strategy

Numerical study on sensitivity analysis of factors influencing liquid cooling with double cold‐plate for lithium‐ion pouch cell

Temperature effect and kinetics, LiZr ₂ ( PO ₄ ) ₃ and Li _1. ₂ Al ₀ _. ₂ Zr _1<

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Kinetic study of low temperature capacity fading in Li-ion cells

Cited by 28 publications

References 13 publications

Simultaneous Interphase Optimizations on the Large-Area Anode and Cathode of High-Energy-Density Lithium-Ion Pouch Cells by a Multiple Additives Strategy

Simultaneous Interphase Optimizations on the Large-Area Anode and Cathode of High-Energy-Density Lithium-Ion Pouch Cells by a Multiple Additives Strategy

Numerical study on sensitivity analysis of factors influencing liquid cooling with double cold‐plate for lithium‐ion pouch cell

Temperature effect and kinetics, LiZr 2 ( PO 4 ) 3 and Li 1. 2 Al 0 . 2 Zr 1<

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Temperature effect and kinetics, LiZr ₂ ( PO ₄ ) ₃ and Li _1. ₂ Al ₀ _. ₂ Zr _1<