Deep‐Eutectic‐Solvent‐Based Self‐Healing Polymer Electrolyte for Safe and Long‐Life Lithium‐Metal Batteries

Jaumaux, Pauline; Liu, Qi; Zhou, Dong; Xu, Xiangyang; Wang, Tianyi; Wang, Yizhou; Kang, Feiyu; Li, Baohua; Wang, Guoxiu

doi:10.1002/anie.202001793

Cited by 323 publications

(260 citation statements)

References 47 publications

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“…Figure 2f presents the temperature dependencies versus ionic conductivities for 1m NaTFSI in PC:FEC LE, LE absorbed in bare Celgard 2500 separator, and LE absorbed in PMTFSINa-grafted separator in the temperature range from 0 8 8Ct o9 08 8C. Thep lots of logs versus T À1 for the LE and LE@PMTFSINa-grafted separator show an on-linear relationship,w hich can be fitted well by the Vogel-Tamman-Fulcher (VTF) empirical equation: [23]…”

Section: Angewandte Chemiementioning

confidence: 86%

Polyolefin‐Based Janus Separator for Rechargeable Sodium Batteries

et al. 2020

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Rechargeable sodium batteries are a promising technology for low‐cost energy storage. However, the undesirable drawbacks originating from the use of glass fiber membrane separators have long been overlooked. A versatile grafting–filtering strategy was developed to controllably tune commercial polyolefin separators for sodium batteries. The as‐developed Janus separators contain a single–ion‐conducting polymer‐grafted side and a functional low‐dimensional material coated side. When employed in room‐temperature sodium–sulfur batteries, the poly(1‐[3‐(methacryloyloxy)propylsulfonyl]‐1‐(trifluoromethanesulfonyl)imide sodium)‐grafted side effectively enhances the electrolyte wettability, and inhibits polysulfide diffusion and sodium dendrite growth. Moreover, a titanium‐deficient nitrogen‐containing MXene‐coated side electrocatalytically improved the polysulfide conversion kinetics. The as‐developed batteries demonstrate high capacity and extended cycling life with lean electrolyte loading.

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Section: Angewandte Chemiementioning

confidence: 86%

Polyolefin‐Based Janus Separator for Rechargeable Sodium Batteries

et al. 2020

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Section: Lithium Conducting Groupsmentioning

confidence: 99%

“…Ether groups with remarkable Li + conducting ability have become the elementary group for SPE, even though the matrix with ether groups suffers from poor electrochemical stability, bad mechanical strength, and low lithium-ion transference number. [27,28] Additionally, polymer martrix based on ether rings like poly(vinyl formal) (PVFM) or poly(vinyl butyral) (PVB) shows good coordination with Li + and can be employed as lithium conducting groups. [29] The heterocyclic structure of ether ring improves the rigidness of the matrix, promoting the filmforming ability and mechanical properties of the polymer, and simultaneously depressing the crystallinity.…”

Section: Ether Groupmentioning

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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“…Jaumaux et al fabricated a deepeutectic solvent (DES) based self-healing polymer electrolyte for quasi-solid state LMBs. [201] DESs are usually mixtures of Lewis or Brønsted acids and bases that remain liquid also at room temperature. Despite of their promising features (such as nonflammability, ease of preparation and low cost), the strong reactivity with Li metal and the good solubility of cathode transition metals in DESs are limiting their use.…”

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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Deep‐Eutectic‐Solvent‐Based Self‐Healing Polymer Electrolyte for Safe and Long‐Life Lithium‐Metal Batteries

Cited by 323 publications

References 47 publications

Polyolefin‐Based Janus Separator for Rechargeable Sodium Batteries

Polyolefin‐Based Janus Separator for Rechargeable Sodium 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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