Does current affect reversible expansion of cylindrical Li-ion battery cells?Influence of the current on the reversible expansion of cylindrical Li-ion battery cells Studies have already shown that the charging and discharging rate has an influence on the expansion of pouch cells , . The present measurements show that this is also the case for cylindrical cells.
Can a cylindrical Li-ion cell expand with different material combinations?Future investigations of the expansion of cylindrical Li-ion cells with different material combinations can also provide information about the influence of the corresponding materials, for example when using a silicon-containing anode.
Is reversible expansion related to cyclable Lithium ion migration?In some cases, irreversible expansion due to plating of metallic lithium and SEI thickness growth was shown in addition to reversible expansion due to Li-ion migration, which correlates with the loss of cyclable lithium. Recent results show that a change in thickness can also be measured in cylindrical cells.
Are cylindrical Li-ion battery cells reversible and irreversible?This study investigates the reversible and irreversible radius change of cylindrical Li-ion battery cells and its influencing factors. First, a measurement with I = C / 20 is used for the electrical and mechanical characterization of the Li-ion cells. The measurement data is used to perform a differential voltage and incremental capacity analysis.
Can the cumulative electrode expansion be detected on the outer casing of battery cells?This study confirms that if the correct position for measuring the volume change of battery cells is selected, the cumulative electrode expansion can be detected on the outer casing of cylindrical battery cells.
Which cylinder format is best for high energy lithium-ion batteries?Cylindrical formats for high energy lithium-ion batteries shifted from 18650 to 21700 types offering higher volumetric energy density and lower manufacturing cos
Sep 6, 2021 · This paper presents the non-uniform change in cell thickness of cylindrical Lithium (Li)-ion cells due to the change of State of Charge (SoC). Using optical measurement
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Feb 1, 2024 · The ability to monitor the thermal behaviour of lithium-ion batteries (LIB) is an essential pre-requisite to optimise performance and ensure safe oper
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Apr 18, 2025 · CATL''s Robin Zeng on Tesla''s Battery Challenges and U.S. Expansion Plans As a global leader in lithium battery manufacturing, CATL
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Jun 11, 2024 · Through the analysis of volume expansion data and surface topography dynamic change map, it can provide data support for the application of silicon anode materials and the
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4 days ago · Thermal dynamics in cylindrical Li-ion batteries, governed by electrochemical heat generation, are critical to performance and safety in high-power applications such as electric
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Jul 7, 2023 · In the last 3 years, cylindrical cells have gained strong relevance and popularity among automotive manufacturers, mainly driven by innovative cell designs, such as the Tesla
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Sep 16, 2020 · Cylindrical formats for high energy lithium-ion batteries shifted from 18650 to 21700 types offering higher volumetric energy density and lower
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Dec 15, 2024 · The phenomena of core collapse observed in cylindrical lithium-ion batteries offer valuable insights that apply to other battery formats by revealing fundamental principles of
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Mar 7, 2025 · Operating at high C-rates or low temperatures rapidly increases the residual pressure as the battery is cycled. The results suggest that lithium plating is predominantly
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Feb 27, 2025 · With the global energy structure transformation, cylindrical lithium batteries are accelerating their penetration in energy storage, transportation and other fields due to their
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Aug 15, 2022 · Abstract Thermal runaway is one of the catastrophic failure modes of lithium-ion cells. During thermal runaway in cylindrical cells, sidewall shell rupture has been identified as
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Jan 1, 2011 · This work investigates the heat generation characteristics of a cylindrical lithium-ion battery. The battery consists of the graphite, LiPF 6 of the propylene carbonate/ethylene
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Dec 23, 2022 · Cylindrical 18650 and 21700 lithium-ion batteries are produced with small gaps between the jelly roll and the case. The size of these gaps
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Oct 1, 2021 · A thin-film strain sensor was inserted into the lithium-ion battery cylindrical cell. The different evolution of the internal strain was obtained with varying silicon contents in the silicon
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Jun 11, 2024 · In this paper, two 21700 cylindrical batteries with different negative silicon content were tested using CCS1300-4 cylindrical battery in situ expansion test system to characterize
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Dec 14, 2020 · Keywords: Thermal conductivity, Thermal characterization, Specific heat capacity, cylindrical cell, Li ion battery cell, Isothermal Heat Conduction Calorimeter, Tesla cylindrical cells.
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Apr 29, 2025 · The expansion of the lithium battery industry continues unabated, with leading companies such as China Innovation Aviation and Guoxuan High-Tech making significant
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May 22, 2025 · The fact that the volume change of large cylindrical battery far exceeds that of small cylindrical battery, with a difference exceeding tenfold.
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Dec 1, 2024 · The behavior of lithium-ion batteries under mechanical abuse conditions has been studied extensively in recent years. Typically, characterization is p
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Jul 9, 2020 · The development of lithium-ion cells with higher energy densities is being driven forward by the use of alloy materials, among other things. Anodes are combined with high
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May 30, 2023 · However, existing operando techniques for measuring battery expansion either use single-point detection to report the local defor-mation or are not sensitive enough for hard
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May 1, 2025 · Lithium-ion batteries with silicon/graphite (Si/Gr) anodes achieve higher energy densities but face challenges such as rapid capacity fade, resistance growth, and complex
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Mar 7, 2025 · The results suggest that lithium plating is predominantly responsible for battery expansion and pressure increase during the cycle aging of Li-ion cells rather than electrolyte
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Jun 19, 2025 · Increasing the size of cylindrical lithium-ion batteries (LIBs) to achieve higher energy densities and faster charging represents one effective tactics in nowadays battery
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Jul 31, 2025 · The story of cylindrical lithium-ion battery cells traces back to the 1990s, when researchers pioneered the development of rechargeable lithium
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During charge-discharge cycling in cylindrical lithium-ion batteries, lithiation and delithiation within the electrodes cause anisotropic expansion and contraction, generating mechanical stresses
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Jun 30, 2023 · Matasso et al. [15] constructed a test chamber in order to examine the gas pressure and gas formation of a cylindrical lithium-ion battery with lithium cobalt oxide cathode
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Oct 28, 2021 · This example simulates an air-cooled cylindrical 18650 lithium-ion battery during a charge-discharge cycle, followed by a relaxing period. A lumped battery model is used to
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May 22, 2025 · There are three main encapsulation forms for lithium batteries, namely pouch cell, prismatic cell and cylindrical cell. pouch cells use
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Nov 20, 2020 · Larger thermal stress can lead to capacity fade and safety issue of lithium-ion batteries. Thermal expansion is induced by thermal stress due to the t
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May 30, 2023 · Here, we propose an optical volumography (OVG) technology, including both apparatus and methodology, to measure the abso-lute volume of a commercial 18650
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Oct 1, 2017 · The battery is subjected to many inter-dependent mechanisms as shown in Fig. 1. While discharging, lithium in its ionic state (Li +) is extracted from the negative electrode
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Jan 16, 2024 · You can find lithium-ion batteries in everything from electric vehicles to mobile phones. But, different applications have different
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Jun 3, 2023 · This paper investigates 19 Li-ion cylindrical battery cells from four cell manufacturers in four formats (18650, 20700, 21700, and 4680). We aim
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Influence of the current on the reversible expansion of cylindrical Li-ion battery cells Studies have already shown that the charging and discharging rate has an influence on the expansion of pouch cells , . The present measurements show that this is also the case for cylindrical cells.
Future investigations of the expansion of cylindrical Li-ion cells with different material combinations can also provide information about the influence of the corresponding materials, for example when using a silicon-containing anode.
In some cases, irreversible expansion due to plating of metallic lithium and SEI thickness growth was shown in addition to reversible expansion due to Li-ion migration, which correlates with the loss of cyclable lithium. Recent results show that a change in thickness can also be measured in cylindrical cells.
This study investigates the reversible and irreversible radius change of cylindrical Li-ion battery cells and its influencing factors. First, a measurement with I = C / 20 is used for the electrical and mechanical characterization of the Li-ion cells. The measurement data is used to perform a differential voltage and incremental capacity analysis.
This study confirms that if the correct position for measuring the volume change of battery cells is selected, the cumulative electrode expansion can be detected on the outer casing of cylindrical battery cells.
Cylindrical formats for high energy lithium-ion batteries shifted from 18650 to 21700 types offering higher volumetric energy density and lower manufacturing costs.
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