Electrochemical Performance of Poly(vinyl alcohol)-Based Solid Polymer Electrolyte for Lithium Polymer Batteries

Kim, Young-Deok; Jo, Yun-Kyung; Jo, Nam‐Ju

doi:10.1166/jnn.2012.5553

Cited by 8 publications

(3 citation statements)

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“…Then, the intrinsic properties of the designed electrolytes were investigated. As indicated in Figure 1d, the addition of PVA polymer into the base electrolyte could improve the electrochemical oxidation stability, [ 34 ] and the antioxidant stability further increases to 5.2 V for the PTB due to the sufficient polymerization rendered efficient trap of DMSO. Besides the improved oxidation stability, the PTB also exhibits a higher Li + ion transfer number than the base electrolyte (0.54 vs 0.46, Figure 1e; Figure S3, Supporting Information), which can be attributed to the anionic adsorption ability of the boronate groups.…”

Section: Resultsmentioning

confidence: 99%

An In Situ Gelled Polymer Electrolyte to Stabilize Lithium–Air Batteries

Li,

Liang,

Wang

et al. 2024

Advanced Energy Materials

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Gel polymer‐based lithium batteries exhibit a unique combination of advantageous properties, including the favorable interfacial contact characteristic of liquid‐state batteries and the inherent stability of solid‐state batteries. For Li–air batteries operated in the semi‐open atmosphere, implementing in situ synthesized gel polymer electrolytes (GPEs) is effective in mitigating the environment‐induced challenges. In this study, a dimethyl sulfoxide (DMSO)‐based GPE in situ initiated by the toluene‐2,4‐diisocyanate (TDI) and 1,4‐benzenediboronic acid (BDBA) is designed to enable the stable operation of lithium–air batteries. The integration of in situ polymerization and polyvinyl alcohol's functional group engineering not only brings benefits to the interfacial contact and electrochemical stability of the battery but also mitigates the moisture sensitivity and volatility of the DMSO electrolyte in the ambient environment. In addition, the GPE can promote the formation of a robust protection film on the lithium surface. As a result, the designed GPE makes the batteries fully leverage their outstanding cycling stability in the ambient environment (241 cycles at 500 mA g−1 and 1000 mAh g−1). Moreover, an optimized Li–air pouch cell structure incorporating the GPE achieves a boasted energy density of 757.5 Wh kg−1, providing a significant technical pathway to bring Li–O2 batteries to practical Li–air batteries.

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Section: Resultsmentioning

confidence: 99%

An In Situ Gelled Polymer Electrolyte to Stabilize Lithium–Air Batteries

Li,

Liang,

Wang

et al. 2024

Advanced Energy Materials

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“…The glass transition and the melting temperature of the pure PVA observed to be 44.9 and 253.1°C, respectively. The low glass transition temperature of the PVA may be observed due to the plasticizing effect of residual solvent 49,50 . The high melting temperature of the pure PVA is due to the strong cross‐linking between the polymer chains 51 .…”

Section: Resultsmentioning

confidence: 99%

Remarkable tailoring of thermal and dielectric properties of poly(vinyl alcohol) nanocomposite via hydrothermal grown ZnAl layer di hydroxide nanostructures and graphene fillers

Ritu,

Patel,

Gupta

2023

Vinyl Additive Technology

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In this work, we have synthesized the zinc‐aluminum layered double hydroxide (ZnAl LDH) nanostructures using cost‐effective hydrothermal technique. The ZnAl LDH and graphene‐based poly(vinyl alcohol) (PVA) nanocomposites are fabricated. The crystal structure, morphology, thermal, and dielectric properties of pristine PVA and ZnAl LDH and graphene‐based PVA nanocomposites films were investigated using X‐ray diffraction, HR‐transmission electron microscopy, thermo gravimetric analysis, and impedance analyzer. HRTEM analysis reveals the hexagonal nanoplates shape‐like morphology of Zn‐Al layered double hydroxides with an average thickness of 40–50 nm and size of 400–600 nm. High thermal stability was observed from ZnAl LDH and graphene‐reinforced nanocomposite. Enhanced thermal stability of 250°C and low weight loss was observed from ZnAl LDH reinforced PVA‐based nanocomposites compared to pristine PVA. Zn‐Al LDH nanoplates‐graphene‐PVA based nanocomposites showed ultra‐high dielectric constant (ɛ′) of 794 as compared to the ZnAl LDH‐PVA nanocomposites (ɛ′ ~ 334) and pristine PVA sample (ɛ′ ~ 35). Low dielectric loss of 0.27, 0.18, 0.38 was observed for pristine PVA, ZnAl‐LDH‐PVA and ZnAl‐LDH‐graphene‐PVA nanocomposites. The large enhancement of the dielectric constant and thermal stability were discussed in terms of improved crystallinity, interfacial polarization and formation of nanodipoles in the matrix. This study reveals a significant role of LDH‐graphene‐based hybrid nanocomposites in optoelectronics, energy storage, sensors, energy conversion and thermally stable devices.Highlights Growth of highly crystalline zinc‐aluminum layered double hydroxide nanostructures. Improved thermal stability for Zn‐Al LDH‐graphene‐PVA nanocomposites. High thermal stability from ZnAl LDH‐based PVA nanocomposites. Ultra‐high dielectric constant of 794 is observed from Zn‐Al LDH nanoplates‐graphene‐nanocomposites.

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“…Poly(vinyl alcohol) (PVA) has been studied as an SPE for Li batteries [140,171]. It possesses a range of desirable characteristics, including good elasticity strength, mechanical resilience, eco-friendliness, low cost, good optical characteristics, high temperature stability, and a high level of hydrophilicity [172,173].…”

Section: Oxidebasedmentioning

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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Electrochemical Performance of Poly(vinyl alcohol)-Based Solid Polymer Electrolyte for Lithium Polymer Batteries

Cited by 8 publications

References 0 publications

An In Situ Gelled Polymer Electrolyte to Stabilize Lithium–Air Batteries

An In Situ Gelled Polymer Electrolyte to Stabilize Lithium–Air Batteries

Remarkable tailoring of thermal and dielectric properties of poly(vinyl alcohol) nanocomposite via hydrothermal grown ZnAl layer di hydroxide nanostructures and graphene fillers

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

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