Plasma-assisted water-based Al2O3 ceramic coating for polyethylene-based microporous separators for lithium metal secondary batteries

Jeon, Hye Kyung; Jin, So Yeon; Park, Won Ho; Lee, Hongkyung; Kim, Hee‐Tak; Ryou, Myung‐Hyun; Lee, Yong Min

doi:10.1016/j.electacta.2016.06.172

Cited by 82 publications

(43 citation statements)

References 37 publications

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“…The purpose of this study is to investigate the structure and composition of the nanoparticulate coating and to obtain detailed information of the interfacial adhesion between the nanoparticulates coating and the PE separator by scanning electron microscopy (SEM), attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), and the peel-off test. There have been some studies that reported using atmospheric plasma to introduce hydrophilicity to the separator and increase Al 2 O 3 adhesion with the separator [31]. We fail to find similar reports of AP-PECVD of hybrid nanoparticulate coating with increased adhesion.…”

Section: Introductioncontrasting

confidence: 93%

Adhesive Hybrid SiO2.01C0.23Hx Nanoparticulate Coating on Polyethylene (PE) Separator by Roll-to-Roll Atmospheric Pressure Plasma

et al. 2019

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For the ever-increasing demand for highly safe lithium-ion batteries (LIBs), the common sol-gel process provides heat-resistance to separators with an inorganic coating, where the adhesion to the separator is the key to safety and stability. In this paper, we present a SiO2.01C0.23Hx-coated polyethylene (PE) separator through a roll-to-roll atmospheric plasma-enhanced chemical vapor deposition (R2R-APECVD) of hexamethyldisiloxane (HMDSO)/Ar/O2. The adhesion strength of SiO2.01C0.23Hx-coated PE was tested by peel-off test and found to be higher than that of the commercial Al2O3-coated separator (0.28 N/mm vs. 0.06 N/mm). Furthermore, the SiO2.01C0.23Hx-coated PE separator showed better electrochemical performance in C-rate and long term cycle tests. FTIR, SEM, and XPS analysis indicate that the increased adhesion and electrochemical performance are attributed to the inner hybrid SiO2.01C0.23Hx coating with organic and inorganic components.

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Section: Introductioncontrasting

confidence: 93%

Adhesive Hybrid SiO2.01C0.23Hx Nanoparticulate Coating on Polyethylene (PE) Separator by Roll-to-Roll Atmospheric Pressure Plasma

et al. 2019

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“…Considering both high current density and areal capacity for the design of high‐energy‐density secondary batteries, one arrives at the conclusion that Li metal cannot be used as a thin foil itself. Therefore, numerous methods for alleviating Li dendrite growth have been proposed, as exemplified i) by the use of functional electrolytes, [ 29,55–58 ] ii) by using polymer electrolytes, [ 59–64 ] iii) modified separator, [ 60,65–70 ] and iv) protective layers. [ 27,71–76 ] However, attempts to modify or improve the performance of Li metal itself have been limited.…”

Section: Introductionmentioning

confidence: 99%

Structure‐Controlled Li Metal Electrodes for Post‐Li‐Ion Batteries: Recent Progress and Perspectives

Jin

Park

Ryou

et al. 2020

Adv Materials Inter

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more batteries, this approach fails to exceed the threshold of 500 km in view of the limited battery mounting space in EVs and the almost saturated energy density of state-of-the-art LIBs (Figure 1a).As demonstrated in the road map for the development of the eGolf (an EV from Volkswagen), a driving range of 420 km can be achieved by 2020 based on the currently available LIB chemistry, cell design techniques, and vehicle frame lightening.

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“…Due to the high number of oxidic functional groups at the surface of these particles, a hybrid separator is more hydrophilic than a comparable polyolefinic material. Therefore, the contact angle is dramatically reduced when a typical hydrophilic electrolyte is used. This effect can be extended by adding surfactants to the electrolyte solution.…”

Section: Introductionmentioning

confidence: 99%

Influence of Separator Material on Infiltration Rate and Wetting Behavior of Lithium‐Ion Batteries

et al. 2019

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The reduction of process time and costs of lithium‐ion‐battery (LIB) cells to make electromobility an ecological technology and economically accessible for everyone is a very crucial research topic. Within the production process of actual LIB cells, the electrolyte filling and wetting are very time‐consuming, and by association, cost‐intensive steps. Therefore, it is essential to investigate and understand the impact of several process parameters on the wetting time and product quality. This can be achieved by the visualization of the wetting progress and subsequent electrochemical characterization of the LIB cells. The monitoring is realized by wetting balance tests for electrodes and separators as well as a new and powerful thermographic method. In addition, different separators with different surface chemistries are tested to improve the production process, the actual cell design, and therefore the costs of the final battery cell.

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Plasma-assisted water-based Al2O3 ceramic coating for polyethylene-based microporous separators for lithium metal secondary batteries

Cited by 82 publications

References 37 publications

Adhesive Hybrid SiO2.01C0.23Hx Nanoparticulate Coating on Polyethylene (PE) Separator by Roll-to-Roll Atmospheric Pressure Plasma

Adhesive Hybrid SiO2.01C0.23Hx Nanoparticulate Coating on Polyethylene (PE) Separator by Roll-to-Roll Atmospheric Pressure Plasma

Structure‐Controlled Li Metal Electrodes for Post‐Li‐Ion Batteries: Recent Progress and Perspectives

Influence of Separator Material on Infiltration Rate and Wetting Behavior of Lithium‐Ion Batteries

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