Sputtered silver on the current collector for anode-less NMC111 gel polymer electrolyte lithium batteries

Hsueh, Tien-Hsiang; Wang, Min-Chuan; Liu, Shang-En; Wu, Bo-Hsien; Li, Yuchen; Tsai, Ding-Guey; Chang, Shu-Mei; Shiue, angus; Chin, Kai-Yen

doi:10.1016/j.elecom.2023.107478

Cited by 12 publications

(5 citation statements)

References 15 publications

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“…There is not much difference in R SEI between MC–MA (0.012 Ω) and CC–CA (0.016 Ω). The semicircle in the intermediate frequency region is charge transfer impedance R ct . , The R ct of MC–MA (0.012 Ω) is lower than CC–CA (0.020 Ω), which suggests that MC–MA has better electrochemical reaction kinetics . The oblique line in the low-frequency region is Warburg impedance, which represents concentration polarization formed by diffusion of lithium ions in the electrolyte .…”

Section: Resultsmentioning

confidence: 99%

Investigation on the Application of Microporous Current Collector in Ultra-Fast Lithium-Ion Full Battery

Fu,

Zhao,

Wang

et al. 2024

Ind. Eng. Chem. Res.

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The widespread popularity of lithium-ion full batteries (LIFBs) has gradually demonstrated the need for fast charge and discharge. In this article, the application of microporous copper foil current collector (MC) and microporous aluminum foil current collector (MA) prepared by electrolytic etching in ultra-high rate LIFBs was studied. Compared with conventional copper foil current collectors (CC) and aluminum foil current collectors (CA), MC–MA has better electrical performance and safety performance in an ultra-high-rate system. The pore size of MC is mainly distributed in 2–10 μm, and MA is mainly distributed in 1–15 μm. Scanning electron microscope shows that the pore structure on MC–MA is a disordered pore. The formation of micropores weakens mechanical strength and elongation of the current collector. The strength of copper foil before and after pore-forming decreased from 317.77 to 305.21 MPa, and the elongation decreased from 5.4 to 2.26%. The strength of aluminum foil before and after pore-forming decreased from 287.24 to 237.83 MPa, and the elongation decreased from 3.16 to 1.74%. However, there was no significant change in the thickness and areal density before and after pore-forming. The formation of micropores increases the three-dimensional interface contact sites of the current collector, thereby improving adhesion strength and reducing the resistivity of the electrode. However, too many contact interfaces also face more side reactions, which also cause the self-discharge and high-temperature storage of MC–MA (0.033) to be slightly worse than that of CC–CA (0.030). The electrochemical results show that MC–MA has a larger specific capacity, better rate performance, and lower electrochemical impedance. The capacity retentions of MC–MA after 500 cycles at 5C and 10C were 84.81 and 76.96% and CC–CA were 81.85 and 62.43%, respectively. The capacity retentions of MC–MA and CC–CA are 84.20 and 73.78% after 500 cycles at 5C charge and 15C pulse discharge. The cell disassembly found that lithium dendrites were the main cause of the capacity decay. The excellent three-dimensional interface of micropore provides more reaction sites, and two-dimensional surface defects reduce current density distribution and realize uniform distribution of lithium ions at different phase interfaces. The micropore provides stress release space for volume expansion of charge and discharge and improves voltage hysteresis caused by compressive stress at the interface between the current collector and materials coating. In addition, due to pore structure changes in the elastic deformation ability and surface current density distribution of the current collector, the safety performance of LIFBs is improved.

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Section: Resultsmentioning

confidence: 99%

Investigation on the Application of Microporous Current Collector in Ultra-Fast Lithium-Ion Full Battery

Fu,

Zhao,

Wang

et al. 2024

Ind. Eng. Chem. Res.

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“…The introduction of lithiophilic materials to form 3D alloy structures by dealloying, powder sintering, magnetron sputtering, and electrochemical methods has attracted much attention. 137,138 The constructed alloy frameworks have both a large specific surface area and excellent lithiophilicity, which can reduce the current density and nucleation overpotential, thereby guiding the uniform deposition of lithium and inhibiting the growth of dendrites. More importantly, the pore size and specific surface area in the alloy framework can be adjusted by changing the molar ratio of different metals and the synthesis conditions (temperature, time, etc .).…”

Section: Alloy Frameworkmentioning

confidence: 99%

Advances in research on the inhibitory effect of 3D current collector structures for lithium dendrites

Xiang,

Fu,

Yin

et al. 2023

Inorg. Chem. Front.

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“…In lithium-free batteries, Li ions from the cathode during the charging process form a thin Li film on the negative current collector. This unique lithium battery design can deliver ultra-high energy density of approximately 400 Wh/kg or 1200 Wh/L [72]. Anodeless Li batteries are seen as a solution to the abnormal heating, explosion, and combustion problem caused by liquid electrolytes, as well as the formation of dendrites and unstable SEI.…”

Section: Lithium Metal Anode For Solid-state Lithium-oxygen Batteriesmentioning

confidence: 99%

Recent Advances in All-Solid-State Lithium–Oxygen Batteries: Challenges, Strategies, Future

et al. 2023

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Digital platforms, electric vehicles, and renewable energy grids all rely on energy storage systems, with lithium-ion batteries (LIBs) as the predominant technology. However, the current energy density of LIBs is insufficient to meet the long-term objectives of these applications, and traditional LIBs with flammable liquid electrolytes pose safety concerns. All-solid-state lithium–oxygen batteries (ASSLOBs) are emerging as a promising next-generation energy storage technology with potential energy densities up to ten times higher than those of current LIBs. ASSLOBs utilize non-flammable solid-state electrolytes (SSEs) and offer superior safety and mechanical stability. However, ASSLOBs face challenges, including high solid-state interface resistances and unstable lithium-metal anodes. In recent years, significant progress has been proceeded in developing new materials and interfaces that improve the performance and stability of ASSLOBs. This review provides a comprehensive overview of the recent advances and challenges in the ASSLOB technology, including the design principles and strategies for developing high-performance ASSLOBs and advances in SSEs, cathodes, anodes, and interface engineering. Overall, this review highlights valuable insights into the current state of the art and future directions for ASSLOB technology.

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Sputtered silver on the current collector for anode-less NMC111 gel polymer electrolyte lithium batteries

Cited by 12 publications

References 15 publications

Investigation on the Application of Microporous Current Collector in Ultra-Fast Lithium-Ion Full Battery

Investigation on the Application of Microporous Current Collector in Ultra-Fast Lithium-Ion Full Battery

Advances in research on the inhibitory effect of 3D current collector structures for lithium dendrites

Recent Advances in All-Solid-State Lithium–Oxygen Batteries: Challenges, Strategies, Future

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