Fabrication of PVDF–HFP-based microporous membranes by the tape casting method as a separator for flexible Li-ion batteries

Chaturvedi, Prerna; Kanagaraj, Amarsingh Bhabu; Alhammadi, Amani S.; Shibli, Hamda Al; Choi, Daniel S.

doi:10.1007/s12034-021-02420-7

Cited by 6 publications

(3 citation statements)

References 32 publications

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“…Piezoelectric materials can convey an electric motive without an external energy source; thus they are considered promising candidates in injured tissues. PVDF has high chemical stability for use in membranes, electrolytes, and catalysis for wastewater treatment 77 and filtration technology, bioreactors, distillation, gas separation, 78 separators for lithium-ion batteries, 79 etc. Owing to its high piezoelectricity, pyro and ferroelectric properties as well as low density, toughness, and flexibility, it has applications in wearable functional devices, 80 transducers 81 and sensors (chemical, pressure, impact, audio, ultrasonic and biosensors), health monitoring systems, biomaterials, and flexible actuator devices.…”

Section: Pvdf Biocompatibility and Applicationsmentioning

confidence: 99%

Future prospects and recent developments of polyvinylidene fluoride (PVDF) piezoelectric polymer; fabrication methods, structure, and electro-mechanical properties

et al. 2023

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Section: Pvdf Biocompatibility and Applicationsmentioning

confidence: 99%

Future prospects and recent developments of polyvinylidene fluoride (PVDF) piezoelectric polymer; fabrication methods, structure, and electro-mechanical properties

et al. 2023

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“…Tape-casting as a well-established method for thick film preparation in conventional lithium-ion batteries features non-vacuum, low-temperature, costeffective, and large-scale manufacturing. [24][25][26][27] Adoption of tape-casting electrode architecture into ASSTFBs can radically eliminate high-temperature catastrophes and, intrinsically, introducing the soft binder and carbon additive can buffer the volume change of the rigid particle and ameliorate electrical conduction contrasting dense pure films with undesirable internal stress resistance and inferior conductive path under the high-mass loading of active materials. However, the porous structure deteriorates ion transfer from a two-dimensional (2D) interface into bulk materials when implementing thin-film solid-state transformation.…”

Section: Introductionmentioning

confidence: 99%

Tape‐casting electrode architecture permits low‐temperature manufacturing of all‐solid‐state thin‐film microbatteries

Ke,

Zhang,

Cheng

et al. 2024

Interdisciplinary Materials

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Along with the constantly evolving functional microsystems toward more diversification, the more rigorous design deliberation of pursuing higher mass‐loading of electrode materials and low‐temperature fabrication compatibility have imposed unprecedented demand on integrable all‐solid‐state thin‐film microbatteries. While the classic thin‐film intercalation cathode prepared by vacuum‐based techniques inevitably encountered a post‐annealing process, tape‐casting technologies hold great merits both in terms of high‐mass loading and low‐temperature processing. In this work, a novel microbattery configuration is developed by the combination of traditional tape‐casting thick electrodes and sputtered inorganic thin‐film solid electrolytes (~3 μm lithium phosphorus oxynitride). Enabled by physically pressed or vapor‐deposited Li as an anode, solid‐state batteries with tape‐casted LiFePO4 electrodes exhibit outstanding cyclability and stability. To meet integration requirements, LiFePO4/LiPON/Si microbatteries were successfully fabricated at low temperatures and found to achieve a wide operating temperature range. This novel configuration has good prospects in promoting the thin‐film microbattery enabling a paradigm shift and satisfying diversified requirements.

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“…GPEs are usually prepared by immersing a porous polymer membrane in an LE. However, the intrinsic safety issues caused by LEs can be avoided by using gel and solid-type electrolytes [ 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Thermally Stable PVDF-HFP-Based Gel Polymer Electrolytes for High-Performance Lithium-Ion Batteries

et al. 2022

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The development of gel polymer electrolytes (GPEs) for lithium-ion batteries (LIBs) has paved the way to powering futuristic technological applications such as hybrid electric vehicles and portable electronic devices. Despite their multiple advantages, non-aqueous liquid electrolytes (LEs) possess certain drawbacks, such as plasticizers with flammable ethers and esters, electrochemical instability, and fluctuations in the active voltage scale, which limit the safety and working span of the batteries. However, these shortcomings can be rectified using GPEs, which result in the enhancement of functional properties such as thermal, chemical, and mechanical stability; electrolyte uptake; and ionic conductivity. Thus, we report on PVDF-HFP/PMMA/PVAc-based GPEs comprising poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-co-HFP) and poly(methyl methacrylate) (PMMA) host polymers and poly(vinyl acetate) (PVAc) as a guest polymer. A physicochemical characterization of the polymer membrane with GPE was conducted, and the electrochemical performance of the NCM811/Li half-cell with GPE was evaluated. The GPE exhibited an ionic conductivity of 4.24 × 10−4 S cm−1, and the NCM811/Li half-cell with GPE delivered an initial specific discharge capacity of 204 mAh g−1 at a current rate of 0.1 C. The cells exhibited excellent cyclic performance with 88% capacity retention after 50 cycles. Thus, this study presents a promising strategy for maintaining capacity retention, safety, and stable cyclic performance in rechargeable LIBs.

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Fabrication of PVDF–HFP-based microporous membranes by the tape casting method as a separator for flexible Li-ion batteries

Cited by 6 publications

References 32 publications

Future prospects and recent developments of polyvinylidene fluoride (PVDF) piezoelectric polymer; fabrication methods, structure, and electro-mechanical properties

Future prospects and recent developments of polyvinylidene fluoride (PVDF) piezoelectric polymer; fabrication methods, structure, and electro-mechanical properties

Tape‐casting electrode architecture permits low‐temperature manufacturing of all‐solid‐state thin‐film microbatteries

Thermally Stable PVDF-HFP-Based Gel Polymer Electrolytes for High-Performance Lithium-Ion Batteries

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