Polyaniline membranes as waterproof barriers for lithium air batteries

Fu, Zhenghao; Wei, Zhen; Lin, Xiujing; Huang, Tao; Yu, Aishui

doi:10.1016/j.electacta.2012.05.153

Cited by 45 publications

(29 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For a wearable application, the waterproof property is also crucial, because wearable devices often face a wet environment such as sweat and rain, as well as laundry cycles …”

Section: Resultsmentioning

confidence: 99%

Scalable Production of Graphene Inks via Wet‐Jet Milling Exfoliation for Screen‐Printed Micro‐Supercapacitors

Bellani

Petroni

Castillo

et al. 2019

Adv Funct Materials

204

165

View full text Add to dashboard Cite

The miniaturization of energy storage units is pivotal for the development of next-generation portable electronic devices. Micro-supercapacitors (MSCs) hold great potential to work as on-chip micro-power sources and energy storage units complementing batteries and energy harvester systems. Scalable production of supercapacitor materials with costeffective and high-throughput processing methods is crucial for the widespread application of MSCs. Here, wet-jet milling exfoliation of graphite is reported to scale up the production of graphene as a supercapacitor material. The formulation of aqueous/alcohol-based graphene inks allows metal-free, flexible MSCs to be screen-printed. These MSCs exhibit areal capacitance (C areal ) values up to 1.324 mF cm −2 (5.296 mF cm −2 for a single electrode), corresponding to an outstanding volumetric capacitance (C vol ) of 0. 490 F cm −3 (1.961 F cm −3 for a single electrode). The screen-printed MSCs can operate up to a power density above 20 mW cm −2 at an energy density of 0.064 µWh cm −2 . The devices exhibit excellent cycling stability over chargedischarge cycling (10 000 cycles), bending cycling (100 cycles at a bending radius of 1 cm) and folding (up to angles of 180°). Moreover, ethylene vinyl acetate-encapsulated MSCs retain their electrochemical properties after a home-laundry cycle, providing waterproof and washable properties for prospective application in wearable electronics.

show abstract

“…For a wearable application, the waterproof property is also crucial, because wearable devices often face a wet environment such as sweat and rain, as well as laundry cycles …”

Section: Resultsmentioning

confidence: 99%

Scalable Production of Graphene Inks via Wet‐Jet Milling Exfoliation for Screen‐Printed Micro‐Supercapacitors

Bellani

Petroni

Castillo

et al. 2019

Adv Funct Materials

204

165

View full text Add to dashboard Cite

show abstract

“…[123] Highly conductive polyaniline (PANI) can act as a waterproof membrane. [124] When attached to the air cathode, it blocks the entrance of moisture, minimizes the electrolyte evaporation, and therefore protects the Li anode. Polytetrafluoroethylene (PTFE) treated carbon paper enhance its hydrophobicity.…”

Section: Oxygen Selective Membranementioning

confidence: 99%

Critical Advances in Ambient Air Operation of Nonaqueous Rechargeable Li–Air Batteries

Liu

Guo

et al. 2019

Small

View full text Add to dashboard Cite

Over the past few years, great attention has been given to nonaqueous lithium-air batteries owing to their ultrahigh theoretical energy density when compared with other energy storage systems. Most of the research interest, however, is dedicated to batteries operating in pure or dry oxygen atmospheres, while Li-air batteries that operate in ambient air still face big challenges. The biggest challenges are H2O and CO2 that exist in ambient air, which can not only form byproducts with discharge products (Li2O2), but also react with the electrolyte and the Li anode. To this end, recent progress in understanding the chemical and electrochemical reactions of Li-air batteries in ambient air is critical for the development and application of true Li-air batteries. Oxygen-selective membranes, multifunctional catalysts, and electrolyte alternatives for ambient air operational Li-air batteries are presented and discussed comprehensively. In addition, sepa-rator modification and Li anode protection are covered. Furthermore, the challenges and directions for the future development of Li-air batteries are presented

show abstract

“…Fu et al . synthesized highly conductive polyaniline (PANI) membranes by proton doping method and used it as the waterproof barriers for Li−O 2 batteries.…”

Section: Carbon‐free Materialsmentioning

confidence: 99%

“…Cui et al [103] firstly introduced the polypyrrole with a tubular morphology in the LiÀO 2 cells. The high hydrophilicity and conductivity of tubular polypyrrole made it a good support and the cell exhibited superior eletrochemical performance.…”

Section: Organic Electrode Materialsmentioning

confidence: 99%

Carbon‐Free Cathode Materials for Li−O₂ Batteries

Cao

Shuaishuai

et al. 2019

Batteries & Supercaps

View full text Add to dashboard Cite

Rechargeable lithium‐oxygen batteries, especially the nonaqueous lithium‐oxygen batteries have attracted much attention in recent years due to their high energy densities. However, few critical challenges remain to be overcome, including the low round‐trip efficiency, high charge overpotential, poor cycling performance, decomposition of electrolyte, and instability of the carbon‐based electrode. Among these, the instability of the carbon‐based electrode is one of the major problems that hindered the practical application of the Li−O2 batteries. Much work has been done to solve this problem and there are two widely‐applied strategies: modification of carbon and designing a “carbon‐free” cathode. In this review, we will introduce recent achievements of both strategies.

show abstract

Polyaniline membranes as waterproof barriers for lithium air batteries

Cited by 45 publications

References 17 publications

Scalable Production of Graphene Inks via Wet‐Jet Milling Exfoliation for Screen‐Printed Micro‐Supercapacitors

Scalable Production of Graphene Inks via Wet‐Jet Milling Exfoliation for Screen‐Printed Micro‐Supercapacitors

Critical Advances in Ambient Air Operation of Nonaqueous Rechargeable Li–Air Batteries

Carbon‐Free Cathode Materials for Li−O₂ Batteries

Contact Info

Product

Resources

About

Polyaniline membranes as waterproof barriers for lithium air batteries

Cited by 45 publications

References 17 publications

Scalable Production of Graphene Inks via Wet‐Jet Milling Exfoliation for Screen‐Printed Micro‐Supercapacitors

Scalable Production of Graphene Inks via Wet‐Jet Milling Exfoliation for Screen‐Printed Micro‐Supercapacitors

Critical Advances in Ambient Air Operation of Nonaqueous Rechargeable Li–Air Batteries

Carbon‐Free Cathode Materials for Li−O2 Batteries

Contact Info

Product

Resources

About

Carbon‐Free Cathode Materials for Li−O₂ Batteries