Smart Electrochemical Energy Storage Devices with Self‐Protection and Self‐Adaptation Abilities

Yang, Yun; Yu, Dandan; Wang, Hua; Guo, Lin

doi:10.1002/adma.201703040

Cited by 87 publications

(58 citation statements)

References 107 publications

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“…Multifunctional energy storage devices with high energy density yet low cost are arousing tremendous interest for scalable and sustainable application in smart consumer products . Various functions including self‐healing, self‐heating, thermo‐protection, and photorechargeability have been incorporated into rechargeable batteries to enhance safety property and/or battery performance under specific conditions (electrode damage, low temperature, overheat, and solar energy).…”

Section: Methodsmentioning

confidence: 99%

Polarity‐Switchable Symmetric Graphite Batteries with High Energy and High Power Densities

Wang

Zhang

et al. 2018

Advanced Materials

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Multifunctional batteries with enhanced safety performance have received considerable attention for their applications at extreme conditions. However, few batteries can endure a mix-up of battery polarity during charging, a common wrong operation of rechargeable batteries. Herein, a polarity-switchable battery based on the switchable intercalation feature of graphite is demonstrated. The unique redox-amphoteric intercalation behavior of graphite allows a reversible switching of graphite between anode and cathode, thus enabling polarity-switchable symmetric graphite batteries. The large potential gap between anion and cation intercalation delivers a high midpoint device voltage (≈average voltage) of ≈4.5 V. Further, both the graphite anode and cathode are kinetically activated during the polarity switching. Consequently, polarity-switchable symmetric graphite batteries exhibit a remarkable cycling stability (96% capacity retention after 500 cycles), a high power density of 8.66 kW kg , and a high energy density of 227 Wh kg (calculated based on the total weight of active materials in both anode and cathode), which are superior to other symmetric batteries and recently reported dual-graphite or dual-carbon batteries. This work will inspire the development of new multifunctional energy-storage devices based on novel materials and electrolyte systems.

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Section: Methodsmentioning

confidence: 99%

Polarity‐Switchable Symmetric Graphite Batteries with High Energy and High Power Densities

Wang

Zhang

et al. 2018

Advanced Materials

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“…To improve battery safety, various strategies have been investigated . One of the common approaches is using a non‐flammable electrolyte, such as a solid‐state electrolyte.…”

Section: Energy Storagementioning

confidence: 99%

Nanostructured Functional Hydrogels as an Emerging Platform for Advanced Energy Technologies

et al. 2018

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Nanostructured materials are critically important in many areas of technology because of their unusual physical/chemical properties due to confined dimensions. Owing to their intrinsic hierarchical micro-/nanostructures, unique chemical/physical properties, and tailorable functionalities, hydrogels and their derivatives have emerged as an important class of functional materials and receive increasing interest from the scientific community. Bottom-up synthetic strategies to rationally design and modify their molecular architectures enable nanostructured functional hydrogels to address several critical challenges in advanced energy technologies. Integrating the intrinsic or extrinsic properties of various functional materials, nanostructured functional hydrogels hold the promise to break the limitations of current materials, improving the device performance of energy storage and conversion. Here, the focus is on the fundamentals and applications of nanostructured functional hydrogels in energy conversion and storage. Specifically, the recent advances in rational synthesis and modification of various hydrogel-derived functional nanomaterials as core components in batteries, supercapacitors, and catalysts are summarized, and the perspective directions of this emerging class of materials are also discussed.

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“…Recently, various smart electronic devices with different functions, such as self‐healing, shape memory, electrochromism, and photodetection, have been developed . In order to further integrate these advanced electronic devices with their power sources into self‐powered smart electronic devices, smart supercapacitors have to be considered.…”

Section: Introductionmentioning

confidence: 99%

Smart supercapacitors from materials to devices

Wang

Yao

Niu

2019

InfoMat

150

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The recent development in smart electronic devices has increased the demand for supercapacitors to integrate with other different functions. Recently, many research efforts have been made to fabricate smart components of supercapacitors and to construct them into novel device configurations. In this mini review, we summarize recent progress in smart supercapacitors with the functions of self‐healing, shape memory, electrochromism, and photodetection, including the design of electrode materials, the optimization of the configuration, and working mechanism. Furthermore, the perspective and challenges for the development of smart supercapacitors are also discussed deeply.

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Smart Electrochemical Energy Storage Devices with Self‐Protection and Self‐Adaptation Abilities

Cited by 87 publications

References 107 publications

Polarity‐Switchable Symmetric Graphite Batteries with High Energy and High Power Densities

Polarity‐Switchable Symmetric Graphite Batteries with High Energy and High Power Densities

Nanostructured Functional Hydrogels as an Emerging Platform for Advanced Energy Technologies

Smart supercapacitors from materials to devices

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