Self-healing and shape-memory solid polymer electrolytes with high mechanical strength facilitated by a poly(vinyl alcohol) matrix

Jo, Ye Hyang; Zhou, Binghua; Jiang, Ke; Li, Shaoqiao; Zuo, Cai; Gan, Hu; He, Dannong; Zhou, Xingping; Xue, Zhigang

doi:10.1039/c9py01406c

Cited by 53 publications

(38 citation statements)

References 55 publications

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“…For example, the incorporation of the UPy group in a cross‐linked network afforded a polymer matrix with self‐healing and shape memory performance, while the self‐healing rate could be easily adjusted by modifying the skeleton design. [ 175 ] Similarly, a star‐shaped cross‐linking network matrix combined with cyclophosphazene and PEG diglycidyl ether exhibited a certain degree of flame retardancy, [ 176 ] while the coexistence of UPy and cyclotriphosphazene afforded a polymer matrix with combined self‐healing and flame retardancy properties. [ 145a ] Taking also into account that wearable electronics are rapidly evolving, the design of flexible LIBs using soft polymer matrices is an imperative need.…”

Section: Well‐defined Polymer Matricesmentioning

confidence: 99%

Structure Code for Advanced Polymer Electrolyte in Lithium‐Ion Batteries

Wang

Zhen

et al. 2020

Adv Funct Materials

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Over the past decade, lithium‐ion batteries (LIBs) have been widely applied in consumer electronics and electric vehicles. Polymer electrolytes (PEs) play an essential role in LIBs and have attracted great interest for the development of next‐generation rechargeable batteries with high energy density. Due to the several practical applications of LIBs and high demands for LIBs performance, many state‐of‐the‐art PEs with different structures and functionalities have been developed to regulate the LIBs performance, especially their rate capability, cycling durability, and lifespan. In this review, the recent advances in high‐performance LIBs prepared using well‐defined PEs are summarized. The ion‐transport mechanisms and preparation techniques of various well‐defined PE classes compared to conventional PEs are also discussed. The aim is to elucidate the structure code for advanced PEs with optimized properties, including ionic conductivity, mechanical properties, processability, accessibility, etc. The existing challenges and future perspectives are also discussed, setting the basis for designing novel PEs for energy conversion applications.

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Section: Well‐defined Polymer Matricesmentioning

confidence: 99%

Structure Code for Advanced Polymer Electrolyte in Lithium‐Ion Batteries

Wang

Zhen

et al. 2020

Adv Funct Materials

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“…Reproduced with permission. [ 97 ] Copyright 2019, Royal Society of Chemistry. c) Synthetic route for the supramolecular structure composed of a linear PEO threaded by a cyclic ring cyclodextrin (CD), and grafted CDs and polymer ends simultaneously with caprolactone (PCL).…”

Section: Macromolecular Design Of Polymer Matrixmentioning

confidence: 99%

“…In addition, multiple functionalities can be achieved via grafting functional groups onto the backbone of SPE, [ 95,96 ] for example, self‐healing properties are realized via introducing Upy groups to form quadruple hydrogen bonding with each other. As shown in Figure 4b, PVA backbones was grafted with Upy and PEG simultaneously, [ 97 ] which shows excellent shape‐memory via self‐healing under heat at 60 °C for 2 h. The optimal PVA‐Upy‐PEG750 with long PEG chains of 750 g mol −1 exhibits the best ionic conductivity of 1.5 × 10 −4 S cm −1 at 60 °C, the widest electrochemical stability window of 5.1 V (vs Li/Li + ), the highest mechanical strength of 2.3 MPa and uniform interfacial interaction with Li anode. The elongation of ionic conductive side chains not only benefits the ionic conductivity, but also enhances the chemical stability of the grafted SPE.…”

Section: Macromolecular Design Of Polymer Matrixmentioning

confidence: 99%

Macromolecular Design of Lithium Conductive Polymer as Electrolyte for Solid‐State Lithium Batteries

Meng

Lian

Cui

2020

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In the development of solid‐state lithium batteries, solid polymer electrolyte (SPE) has drawn extensive concerns for its thermal and chemical stability, low density, and good processability. Especially SPE efficiently suppresses the formation of lithium dendrite and promotes battery safety. However, most of SPE is derived from the matrix with simple functional group, which suffers from low ionic conductivity, reduced mechanical properties after conductivity modification, bad electrochemical stability, and low lithium‐ion transference number. Appling macromolecular design with multiple functional groups to polymer matrix is accepted as a strategy to solve the problems of SPE fundamentally. In this review, macromolecular design based on lithium conducting groups is summarized including copolymerization, network construction, and grafting. Meanwhile, the construction of single‐ion conductor polymer is also focused herein. Moreover, synergistic effects between the designed matrix, lithium salt, and fillers are reviewed with the objective to further improve the performance of SPE. At last, future studies on macromolecular design are proposed in the development of SPE for solid‐state batteries with high energy density and durability.

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“…fabricated a SH polymeric electrolyte formed by a polyvinyl alcohol (PVA) backbone and PEG and UPy as side chains. [ 193 ] Zhou et al. produced a dual‐network SPE constituted again by UPy.…”

Section: Self‐healable Batteriesmentioning

confidence: 99%

“…Jo et al fabricated a SH polymeric electrolyte formed by a polyvinyl alcohol (PVA) backbone and PEG and UPy as side chains. [193] Zhou et al produced a dual-network SPE constituted again by UPy. [194] In this last case, the structure was based on a first SH UPy-based network and a conductive second network of polyethylene glycol-bis-carbamate dimethacrylate (PEGBCDMA).…”

Section: Self-healing Electrolytes For Lmbsmentioning

confidence: 99%

Exploiting Self‐Healing in Lithium Batteries: Strategies for Next‐Generation Energy Storage Devices

Mezzomo

Ferrara

Brugnetti

et al. 2020

Advanced Energy Materials

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An improved lifetime can be achieved by exploiting higher intrinsic durability of the materials, or by repairing the deteriorated component and restoring its original properties. Indeed, in the last years, several attempts to improve the lifetime of widespread devices (prosthetics, batteries, solar cells, lighting devices, etc.) were reported. [4-8] However, traditional techniques (welding, gluing, patching) need in situ application of fresh healing materials, and are not applicable to many modern complex devices that require disassembly and targeted operations well beyond the expertise of the final user. Moreover, repair by specialized personnel may be impossible or unsustainable from an economic point of view. To overcome these problems, a radically new strategy that can pave the way for more durable materials is emerging: the concept of selfhealing (SH). [9] This term refers to those smart materials that can automatically restore some, or all, of their functions after having suffered of an external damage that degraded their original properties. This usually has to do with autonomous recovery of physical cracks, but may include a wider range of features prolonging the lifetime of a material/ device, which space from anticorrosion to bactericidal properties. [10,11] By tailoring an appropriate response of the system, it becomes possible to design a material that can respond to various external perturbations and accommodate their eventual disturbance. The idea at the base of this approach is usually defined as biomimetic, since it takes inspiration from nature and mimic it in solving complex technological problems. [12] During the years, many different materials or technologies, naively depicted in Figure 1a, have taken inspiration from nature (as Velcro tape which mimics tiny hooks on bur fruits, naturally ventilated facades that mime termites' mounds, hydrophobic lotus-leaf coatings, and iridescent or adhesive surfaces respectively inspired by butterflies and geckos) and self-healing is not an exception. [13-15] In fact, in nature many organisms are capable of healing damages and of restoring their functionalities: skin, bones, plants, and other living systems can sense any failure and reconstruct the injured biological part which recovers its original functionalities. [16-18] Since these features lengthen the life of natural living beings, analog mechanisms can be exploited in artificial self-healing materials to benefit the Major improvements in stability and performance of batteries are still required for a more effective diffusion in industrial key sectors such as automotive and foldable electronics. An encouraging route resides in the implementation into energy storage devices of self-healing features, which can effectively oppose the deterioration upon cycling that is typical of these devices. In order to provide a comprehensive view of the topic, this Review first summarizes the main self-healing processes that have emerged in the multifaceted field of smart materials, classifying them on the basis of t...

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Self-healing and shape-memory solid polymer electrolytes with high mechanical strength facilitated by a poly(vinyl alcohol) matrix

Abstract: This article reports PVA-based electrolytes with supramolecular networks formed via quadruple hydrogen bonding for lithium-ion batteries.

Cited by 53 publications

References 55 publications

Structure Code for Advanced Polymer Electrolyte in Lithium‐Ion Batteries

Structure Code for Advanced Polymer Electrolyte in Lithium‐Ion Batteries

Macromolecular Design of Lithium Conductive Polymer as Electrolyte for Solid‐State Lithium Batteries

Exploiting Self‐Healing in Lithium Batteries: Strategies for Next‐Generation Energy Storage Devices

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