Electrode-supported thin α-alumina separators for lithium-ion batteries

Mi, Wanliang; Sharma, Gaurav; Dong, Xueliang; Yi, Jin; Lin, Jerry Y S

doi:10.1016/j.jpowsour.2015.11.067

Cited by 26 publications

(18 citation statements)

References 26 publications

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“…The alumina coating layer did not react with the electrode material even after continuous charging and discharging, and the coated alumina exhibited higher thermal and mechanical stability than the conventional ceramic separator. Notably, the initial capacity and efficiency and rate characteristics were higher than those of the cell with the conventional [271] Copyright 2016, Elsevier. b,b-1,2) Reproduced with permission.…”

Section: Surface Modificationmentioning

confidence: 95%

“…This method can alleviate the side reactions that occur between the electrode and the electrolyte. [ 271 ] Above all, it is critical to control the thickness because the hetero‐element layer that is modified on the electrode surface must not resist diffusion of charge carriers.…”

Section: Lithium‐ion Batteriesmentioning

confidence: 99%

Section: Lithium‐ion Batteriesmentioning

confidence: 99%

“…Mi et al modified alumina, which is a typical inactive bio-ceramic, on the surface of a Li 4 Ti 5 O 12 (LTO) electrode to produce a cell with no distinct separator (Figure 19a,a-1). [271] The poly(vinyl alcohol) (PVA) binder and alumina powder were applied to the surface of the electrode by a simple method using a blade, and the electrode coating simultaneously served the roles of a surface layer and a separator. This electrode surface layer solved the problem of brittle and expensive ceramic separators.…”

Section: Surface Modificationmentioning

confidence: 99%

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Gifts from Nature: Bio‐Inspired Materials for Rechargeable Secondary Batteries

Voronina

Sun

2021

Advanced Materials

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Materials in nature have evolved to the most efficient forms and have adapted to various environmental conditions over tens of thousands of years. Because of their versatile functionalities and environmental friendliness, numerous attempts have been made to use bio‐inspired materials for industrial applications, establishing the importance of biomimetics. Biomimetics have become pivotal to the search for technological breakthroughs in the area of rechargeable secondary batteries. Here, the characteristics of bio‐inspired materials that are useful for secondary batteries as well as their benefits for application as the main components of batteries (e.g., electrodes, separators, and binders) are discussed. The use of bio‐inspired materials for the synthesis of nanomaterials with complex structures, low‐cost electrode materials prepared from biomass, and biomolecular organic electrodes for lithium‐ion batteries are also introduced. In addition, nature‐derived separators and binders are discussed, including their effects on enhancing battery performance and safety. Recent developments toward next‐generation secondary batteries including sodium‐ion batteries, zinc‐ion batteries, and flexible batteries are also mentioned to understand the feasibility of using bio‐inspired materials in these new battery systems. Finally, current research trends are covered and future directions are proposed to provide important insights into scientific and practical issues in the development of biomimetics technologies for secondary batteries.

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Section: Surface Modificationmentioning

confidence: 95%

Section: Lithium‐ion Batteriesmentioning

confidence: 99%

Section: Lithium‐ion Batteriesmentioning

confidence: 99%

Section: Surface Modificationmentioning

confidence: 99%

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Gifts from Nature: Bio‐Inspired Materials for Rechargeable Secondary Batteries

Voronina

Sun

2021

Advanced Materials

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“…Similarly, Mi, W. et al [70] created a thin coating of alumina nanoparticles on the surface of the lithium titanate (Li 4 Ti 5 O 12 LTO) electrode by a blade coating with the help of a polyvinyl alcohol (PVA) binder and compared the results with the PP separator and the freestanding PVA/alumina separator. They found that a crack free and micro to macroporous coating with a similar thickness of PP separator was developed on the surface of the electrode without any cracks, which enhanced the porosity and led to high ion conductivity (2.39 mS cm −1 ).…”

Section: Inorganic Particle-coated Composite Membranesmentioning

confidence: 99%

A Review on Inorganic Nanoparticles Modified Composite Membranes for Lithium-Ion Batteries: Recent Progress and Prospects

et al. 2019

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Separators with high porosity, mechanical robustness, high ion conductivity, thin structure, excellent thermal stability, high electrolyte uptake and high retention capacity is today’s burning research topic. These characteristics are not easily achieved by using single polymer separators. Inorganic nanoparticle use is one of the efforts to achieve these attributes and it has taken its place in recent research. The inorganic nanoparticles not only improve the physical characteristics of the separator but also keep it from dendrite problems, which enhance its shelf life. In this article, use of inorganic particles for lithium-ion battery membrane modification is discussed in detail and composite membranes with three main types including inorganic particle-coated composite membranes, inorganic particle-filled composite membranes and inorganic particle-filled non-woven mates are described. The possible advantages of inorganic particles application on membrane morphology, different techniques and modification methods for improving particle performance in the composite membrane, future prospects and better applications of ceramic nanoparticles and improvements in these composite membranes are also highlighted. In short, the contents of this review provide a fruitful source for further study and the development of new lithium-ion battery membranes with improved mechanical stability, chemical inertness and better electrochemical properties.

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A Critical Review on Materials and Fabrications of Thermally Stable Separators for Lithium‐Ion Batteries

Wang

Shen

et al. 2021

Adv Materials Technologies

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Li‐ion batteries nowadays are widely used as energy storage systems owing to their high power and energy densities. However, the safety of Li‐ion batteries has increasingly become a grave concern, and how to effectively mitigate or avoid the thermal runaway of Li‐ion batteries, particularly during fast charging/discharging, is a critical issue. It has been pointed out that among various factors governing the safety of Li‐ion batteries, the thermal stability of separators plays an important role. In this review, a critical discussion is reported on recent research and development of thermally stable separators, including surface modified polyolefin separators, novel polymer separators, inorganic structured separators, and functional smart separators, for improving the safety of Li‐ion batteries, summarizing different techniques, processes, and materials being researched and developed for these separators for lithium‐ion batteries. Finally, suggestions are provided on future directions to develop thermally stable separators with respect to the safety of next‐generation Li‐ion batteries.

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Electrode-supported thin α-alumina separators for lithium-ion batteries

Cited by 26 publications

References 26 publications

Gifts from Nature: Bio‐Inspired Materials for Rechargeable Secondary Batteries

Gifts from Nature: Bio‐Inspired Materials for Rechargeable Secondary Batteries

A Review on Inorganic Nanoparticles Modified Composite Membranes for Lithium-Ion Batteries: Recent Progress and Prospects

A Critical Review on Materials and Fabrications of Thermally Stable Separators for Lithium‐Ion Batteries

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