Room temperature lithium metal batteries based on a new Gel Polymer Electrolyte membrane

Sannier, Lucas; Bouchet, Renaud; Grugeon, Sylvie; Naudin, Eric; Vidal, E.; Tarascon, Jean‐Marie

doi:10.1016/j.jpowsour.2004.11.064

Cited by 27 publications

(13 citation statements)

References 15 publications

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“…The effects are long-ranged, impacting the local field for all of the positions inside the voxel, albeit by small amounts. For example, the field around a spherical object falls off with 1=r 3 and around a cylindrical object with 1=r 2 . The histogram combining all of the positions inside the voxel (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…These mossy, needle-like, or dendritic structures severely compromise battery performance and can eventually penetrate the separator and cause overheating and short circuiting, thus presenting serious safety concerns. Preventing dendrite growth has proven to be extremely challenging, due in part to the current poor understanding of the conditions under which the dendrites' growth is initiated and the factors that contribute to their continued growth (2,3). The development of new analytical techniques that are sensitive to dendrite growth and amenable to studying electrochemical cells in situ is crucial to future efforts of improving battery designs and performance (4,5).…”

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confidence: 99%

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Real-time 3D imaging of microstructure growth in battery cells using indirect MRI

Ilott

Mohammadi

Chang

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

135

102

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Lithium metal is a promising anode material for Li-ion batteries due to its high theoretical specific capacity and low potential. The growth of dendrites is a major barrier to the development of high capacity, rechargeable Li batteries with lithium metal anodes, and hence, significant efforts have been undertaken to develop new electrolytes and separator materials that can prevent this process or promote smooth deposits at the anode. Central to these goals, and to the task of understanding the conditions that initiate and propagate dendrite growth, is the development of analytical and nondestructive techniques that can be applied in situ to functioning batteries. MRI has recently been demonstrated to provide noninvasive imaging methodology that can detect and localize microstructure buildup. However, until now, monitoring dendrite growth by MRI has been limited to observing the relatively insensitive metal nucleus directly, thus restricting the temporal and spatial resolution and requiring special hardware and acquisition modes. Here, we present an alternative approach to detect a broad class of metallic dendrite growth via the dendrites' indirect effects on the surrounding electrolyte, allowing for the application of fast 3D 1 H MRI experiments with high resolution. We use these experiments to reconstruct 3D images of growing Li dendrites from MRI, revealing details about the growth rate and fractal behavior. Radiofrequency and static magnetic field calculations are used alongside the images to quantify the amount of the growing structures.Li-ion batteries | in situ MRI | dendrite growth L ithium metal is a promising anode material for secondary lithium batteries because it has the highest theoretical specific capacity of possible anode materials (3,860 mAh/g), and the most negative voltage. The metal's use is currently limited due to irregular microstructure buildup on the electrode during charging (1). These mossy, needle-like, or dendritic structures severely compromise battery performance and can eventually penetrate the separator and cause overheating and short circuiting, thus presenting serious safety concerns. Preventing dendrite growth has proven to be extremely challenging, due in part to the current poor understanding of the conditions under which the dendrites' growth is initiated and the factors that contribute to their continued growth (2, 3). The development of new analytical techniques that are sensitive to dendrite growth and amenable to studying electrochemical cells in situ is crucial to future efforts of improving battery designs and performance (4, 5).In situ NMR spectroscopy and MRI are powerful noninvasive methods that can provide time-resolved and quantitative information about the changes within the electrolyte and the electrodes. NMR measurements are sensitive to dendrite growth and are also able to resolve different lithium microstructure morphologies through chemical shift measurements (6-9). MRI approaches provide additional spatial information, allowing specific structural changes ...

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Real-time 3D imaging of microstructure growth in battery cells using indirect MRI

Ilott

Mohammadi

Chang

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

135

102

View full text Add to dashboard Cite

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“…To be acceptable for use, these electronic devices require a small, flexible and lightweight energy storage system that is robust under bending, twisting, compressing and stretching deformations without compromising their functions and performance. Flexible energy storage systems such as flexible alkaline batteries, flexible zinc carbon batteries all‐polymer batteries, polymer lithium‐metal batteries, flexible rechargeable lithium ion batteries (LIBs) and flexible supercapacitors (SCs) have been explored and investigated. Among these, flexible LIBs and SCs are very promising due to their higher energy and power density, longer life and environmental benignity …”

Section: Introductionmentioning

confidence: 99%

Novel Pliable Electrodes for Flexible Electrochemical Energy Storage Devices: Recent Progress and Challenges

Yousaf

Shi

Wang

et al. 2016

Advanced Energy Materials

154

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(2016). Novel pliable electrodes for flexible electrochemical energy storage devices: recent progress and challenges. Advanced Energy Materials, 6(17). which has been published in final form at 10.1002/aenm.201600490 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. How to cite TSpace itemsAlways cite the published version, so the author(s) will receive recognition through services that track citation counts, e.g. Scopus. If you need to cite the page number of the author manuscript from TSpace because you cannot access the published version, then cite the TSpace version in addition to the published version using the permanent URI (handle) found on the record page.

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“…Nevertheless, the mechanical properties of the porous composite membranes are relatively lower, which may lead to the deformation or fracture of the separator and subsequently cause a short circuit in the battery. Hence, to improve the mechanical properties of the separator, a small amount of plasticizer can be added to ensure the stable mechanical properties [29].…”

Section: Introductionmentioning

confidence: 99%

High Temperature Resistant Separator of PVDF-HFP/DBP/C-TiO2 for Lithium-Ion Batteries

Zheng

et al. 2019

Materials

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To improve the thermal shrinkage and ionic conductivity of the separator for lithium-ion batteries, adding carboxylic titanium dioxide nanofiber materials into the matrix is proposed as an effective strategy. In this regard, a poly(vinylidene fluoride-hexafluoro propylene)/dibutyl phthalate/carboxylic titanium dioxide (PVDF-HFP/DBP/C-TiO2) composite separator is prepared with the phase inversion method. When the content of TiO2 nanofibers reaches 5%, the electrochemical performance of the battery and ion conductivity of the separator are optimal. The PVDF-HFP/DBP/C-TiO2 (5%) composite separator shows about 55.5% of porosity and 277.9% of electrolyte uptake. The PVDF-HFP/DBP/C-TiO2 (5%) composite separator has a superior ionic conductivity of 1.26 × 10 −3 S cm−1 and lower interface impedance at room temperature, which brings about better cycle and rate performance. In addition, the cell assembled with a PVDF-HFP/DBP/C-TiO2 separator can be charged or discharged normally and has an outstanding discharge capacity of about 150 mAh g−1 at 110 °C. The battery assembled with the PVDF-HFP/DBP/C-TiO2 composite separator exhibits excellent electrochemical performance under high and room temperature environments.

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Room temperature lithium metal batteries based on a new Gel Polymer Electrolyte membrane

Cited by 27 publications

References 15 publications

Real-time 3D imaging of microstructure growth in battery cells using indirect MRI

Real-time 3D imaging of microstructure growth in battery cells using indirect MRI

Novel Pliable Electrodes for Flexible Electrochemical Energy Storage Devices: Recent Progress and Challenges

High Temperature Resistant Separator of PVDF-HFP/DBP/C-TiO2 for Lithium-Ion Batteries

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