Cu2O as a promising cathode with high specific capacity for thermal battery

Luo, Zeshunji; Fu, Licai; Zhu, Jiajun; Yang, Wulin; Li, Deyi; Zhou, Lingping

doi:10.1016/j.jpowsour.2019.227569

Cited by 54 publications

(31 citation statements)

References 50 publications

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“…For example, the voltage decreases from 100 to 70 V under a current density of 6 A/ cm 2 in the Ni-NiCl 2 battery at 25 s. The voltage drop in the Ni-NiCl 2 system (Figure 7A) is 30 V and the corresponding internal resistance is 0.12 Ω (Figure 7B), which is significantly lower than that of the FeS 2 (70 V, 0.28 Ω) and CoS 2 (65 V, 0.26 Ω) thermal batteries. Moreover, as shown in Figure 7C, the activation time of the Ni-NiCl 2 battery is significantly lower than those of previously reported thermal batteries (Liu and Chu, 2004;Yu et al, 2018;Guo et al, 2019;Gui et al, 2020;Guo et al, 2020;Luo et al, 2020), which indicates the quick response ability of the battery. The power density of Ni-NiCl 2 (11.4 kW/kg), as shown in Figure 7D, is considerably higher than those of several previously reported electrode materials (Zhu et al, 2012;Yu et al, 2018;Guo et al, 2019;Gui et al, 2020;Guo et al, 2020;Luo et al, 2020).…”

Section: Resultsmentioning

confidence: 56%

“…Moreover, as shown in Figure 7C, the activation time of the Ni-NiCl 2 battery is significantly lower than those of previously reported thermal batteries (Liu and Chu, 2004;Yu et al, 2018;Guo et al, 2019;Gui et al, 2020;Guo et al, 2020;Luo et al, 2020), which indicates the quick response ability of the battery. The power density of Ni-NiCl 2 (11.4 kW/kg), as shown in Figure 7D, is considerably higher than those of several previously reported electrode materials (Zhu et al, 2012;Yu et al, 2018;Guo et al, 2019;Gui et al, 2020;Guo et al, 2020;Luo et al, 2020). In addition, the comparison of the power density of the present thermal batteries is summarized in Supplementary Table S2.…”

Section: Resultsmentioning

confidence: 56%

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Fabrication of the Ni-NiCl2 Composite Cathode Material for Fast-Response Thermal Batteries

et al. 2021

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Thermal batteries with a high power density and rapid activation time are crucial for improving the fast response ability of sophisticated weapons. In this study, an Ni-NiCl2 composite was prepared via hydrogen reduction and employed as a cathode material. Discharge tests on a battery assembled using the fabricated composite revealed that its initial internal resistance decreased and the activation time reduced. Notably, the Ni-NiCl2 cathode increased the energy output by 47% (from 6.76 to 9.94 Wh in NiCl2 and Ni-NiCl2, respectively) with a cut-off voltage of 25 V; the power density of the novel battery system reached 11.4 kW/kg. The excellent performance of the thermal battery benefited from the high electrode potential and low internal resistance of Ni-NiCl2. This study contributes to the development of high-performance electrode materials for next-generation thermal battery-related technologies.

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Section: Resultsmentioning

confidence: 56%

Section: Resultsmentioning

confidence: 56%

Fabrication of the Ni-NiCl2 Composite Cathode Material for Fast-Response Thermal Batteries

et al. 2021

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“…Thus, it could be expected that the discharge performance of LiCu 2 O 2 would be more excellent than that of LiCu 3 O 3 . Thermal stability is one of the important indicators for thermal battery cathode (Jin et al, 2018;Luo et al, 2020). As shown in Figure 5A, LiCu 2 O 2 began to decompose to LiCuO, Cu 2 O, and O 2 at around 680 • C. The weight loss at 380 • C was about 1.81%, which was mainly caused by the decomposition of Li 2 CO 3 .…”

Section: Resultsmentioning

confidence: 99%

High Specific Capacity Thermal Battery Cathodes LiCu2O2 and LiCu3O3 Prepared by a Simple Solid Phase Sintering

et al. 2020

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The thermal battery has been designed to be active at high temperature to satisfy storage life and large capacity for storage and emergency power. The development of thermal battery with high specific energy requires that the cathode has high thermal stability and excellent conductivity. Here, the semiconductor material Li-Cu-O compounds LiCu 2 O 2 and LiCu 3 O 3 are synthesized by a simple solid-phase sintering technique, which is simpler than the traditional synthesis process. The thermal decomposition temperatures are 680 • C and above 900 • C, respectively. This work first applies the Li-Cu-O compounds to the thermal battery. With a cutoff voltage of 1.5 V, the specific capacities of LiCu 2 O 2 and LiCu 3 O 3 are 423 and 332 mA h g −1. Both the decomposition temperature and specific capacity are higher than in the commercial FeS 2 and CoS 2 , especially LiCu 2 O 2. This work affords an alternative of the cathode materials for high specific capacity thermal battery.

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“…Cuprite Cu2O is known to have a low value of thermal expansion coefficient around room temperature, and to exhibit a negative thermal-expansion behavior at low temperatures. The thermal decomposition temperature of Cu2O exceeds 900 O C. So, for the high temperature processing of CIGS material, may not have any serious effect of the Cu2O layer [38]. Moreover, there is possibility of Cu diffusion in CIGS material at the rear end which can change the CIGS bandgap and its performance.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Cu<sub>2</sub>O as Hole Transport Layer for High-Efficiency CIGS Solar Cell

Yousuf¹,

Saeed²,

Tauqeer³

2021

Preprint

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Copper indium gallium selenide (CIGS) is an inexpensive material that has the potential to dominate the next-generation photovoltaic (PV) industry. Here we detail computational investigation of CIGS solar cell with encouragement of adopting cuprous dioxide (Cu2O) as a Hole Transport Layer (HTL) for efficient fabricated CIGS solar cells. Although Cu2O as a HTL has been studied earlier for perovskite and other organic/inorganic solar cell yet no study has been detailed on potential application of Cu2O for CIGS solar cells. With the proposed architecture, recombination losses are fairly reduced at the back contact and contribute to enhanced photo-current generation. With the introduction of Cu2O, the overall cell efficiency is increased to 26.63%. The wide-band of Cu2O pulls holes from the CIGS absorber which allows smoother extraction of holes with experiencing lesser resistance. Further, it was also inferred that, HTL also improves the quantum efficiency (QE) for photons with large wavelengths thus increases the cell operating spectrum.

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Cu2O as a promising cathode with high specific capacity for thermal battery

Cited by 54 publications

References 50 publications

Fabrication of the Ni-NiCl2 Composite Cathode Material for Fast-Response Thermal Batteries

Fabrication of the Ni-NiCl2 Composite Cathode Material for Fast-Response Thermal Batteries

High Specific Capacity Thermal Battery Cathodes LiCu2O2 and LiCu3O3 Prepared by a Simple Solid Phase Sintering

Numerical Investigation of Cu<sub>2</sub>O as Hole Transport Layer for High-Efficiency CIGS Solar Cell

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