Improved swelling behavior of Li ion batteries by microstructural engineering of anode

Park, Keemin; Myeong, Seungcheol; Shin, Donghyeok; Cho, Chae Woong; Kim, Soochan; Song, Taeseup

doi:10.1016/j.jiec.2018.11.035

Cited by 26 publications

(16 citation statements)

References 29 publications

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“…The swelling behavior after calendering can increase the pressure inside the cell and may cause further safety concerns. Park et al adopted a two-step roll pressing method on graphite anode to reduce the swelling rate from 5% to 4.47% after 25 cycles (Park et al, 2019). They first used soft roll pressing to guarantee the uniform pore distribution, and the second roll pressing could adjust the electrode to target thickness and density.…”

Section: Calenderingmentioning

confidence: 99%

Current and future lithium-ion battery manufacturing

et al. 2021

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Summary Lithium-ion batteries (LIBs) have become one of the main energy storage solutions in modern society. The application fields and market share of LIBs have increased rapidly and continue to show a steady rising trend. The research on LIB materials has scored tremendous achievements. Many innovative materials have been adopted and commercialized by the industry. However, the research on LIB manufacturing falls behind. Many battery researchers may not know exactly how LIBs are being manufactured and how different steps impact the cost, energy consumption, and throughput, which prevents innovations in battery manufacturing. Here in this perspective paper, we introduce state-of-the-art manufacturing technology and analyze the cost, throughput, and energy consumption based on the production processes. We then review the research progress focusing on the high-cost, energy, and time-demand steps of LIB manufacturing. Finally, we share our views of challenges in LIB manufacturing and propose future development directions for manufacturing research in LIBs.

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Section: Calenderingmentioning

confidence: 99%

Current and future lithium-ion battery manufacturing

et al. 2021

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“…The adoption of Si anodes, nonetheless, has been hindered by the low electrical conductivity and high lithiation-induced volume change of Si, which result in low cycling stability and poor rate performance. − Extensive efforts have been made to address the limitations through constructing Si-carbon composites with various microstructures (e.g., core–shell, − yolk–shell, , and sandwich structures , ) in which the carbon matrix provided electrical conductivity and the voids accommodated volume change of the Si particles. In the commercial fabrication of electrodes, however, a calendering process is commonly required to improve the interfacial contact and electrode capacity, during which a high calendering pressure (e.g., ∼80 MPa) is applied, which could easily damage the structure of the Si–C composites. − Developing mechanically resilient Si–C composites that can survive the calendaring process in the context of commercial application of Si anodes is of particular importance. − …”

Section: Introductionmentioning

confidence: 99%

Spheres of Graphene and Carbon Nanotubes Embedding Silicon as Mechanically Resilient Anodes for Lithium-Ion Batteries

Yin

et al. 2022

Nano Lett.

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Novel anode materials for lithium-ion batteries were synthesized by in situ growth of spheres of graphene and carbon nanotubes (CNTs) around silicon particles. These composites possess high electrical conductivity and mechanical resiliency, which can sustain the high-pressure calendering process in industrial electrode fabrication, as well as the stress induced during charging and discharging of the electrodes. The resultant electrodes exhibit outstanding cycling durability (∼90% capacity retention at 2 A g–1 after 700 cycles or a capacity fading rate of 0.014% per cycle), calendering compatibility (sustain pressure over 100 MPa), and adequate volumetric capacity (1006 mAh cm–3), providing a novel design strategy toward better silicon anode materials.

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“…During pulverization of active materials on battery electrode, two-step pressing process is encouraged to decrease swelling and equal distribution of active materials. Anode shows 4.47% of swelling on two-step press process and 5% of swelling on single press process after 25 cycles [14]. One of the non-reactive battery components which involve in swelling is separator.…”

Section: Chemical Alterationsmentioning

confidence: 99%

Influence of swelling on the safety aspects of electric vehicle batteries – Short Review

Kalaikkanal

Gobinath

Mohan

2023

IOP Conf. Ser.: Earth Environ. Sci.

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In transportation sector, electric vehicles (EV) are found to offer more attentions due to its efficiency, pollution free, less maintenance over the conventional fuel-burnt vehicles. In EVs the cost, performance, and safety are all associated to its batteries. Among various types of batteries, lithium-ion battery (LIB) is predominantly used in EVs for its large energy density, long lifespan however safety of LIB is the daunting part. To overcome the catastrophic fault conditions of batteries different safety measures are employed in EVs. One of the accurate and viable methods to predict battery fault is observed to be the battery swelling effect. In the present work, various aspects of swelling effect on battery components for their safety measurements are discussed referring the very recent studies published in the literature. The key aspects of the work include physical and chemical properties; gas formation in battery under fault conditions; protective switch in order to improve and predict LIB safety.

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Improved swelling behavior of Li ion batteries by microstructural engineering of anode

Cited by 26 publications

References 29 publications

Current and future lithium-ion battery manufacturing

Current and future lithium-ion battery manufacturing

Spheres of Graphene and Carbon Nanotubes Embedding Silicon as Mechanically Resilient Anodes for Lithium-Ion Batteries

Influence of swelling on the safety aspects of electric vehicle batteries – Short Review

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