In-situ generation of high performance thiol-conjugated solid polymer electrolytes via reliable thiol-acrylate click chemistry

Xuan, Ce; Gao, Shuyu; Wang, Yanqing; You, Qingliang; Liu, Xueqing; Liu, Jiyan; Xu, Rui; Yang, Kun; Cheng, Shaokai; Liu, Zhihong; Guo, Qingzhong

doi:10.1016/j.jpowsour.2020.228024

Cited by 24 publications

(18 citation statements)

References 39 publications

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“…For the all-solid polymer electrolyte, the glass transition temperature ( T g ) is an important parameter, which is directly related to the ionic conductivity of the electrolyte. Differential scanning calorimetry (DSC) showed that the P(EGDMA-EDT)-based polymer electrolyte (with 25 wt % LiTFSI) presented a T g of −40.1 °C (Figure d), which was slightly higher than that of the reported poly(ethylene glycol dimethacrylate-3,6-dioxa-1,8-octane dithiol) (P(EGDMA–DODT))-based polymer electrolyte (−50 °C) . Compared with P(EGDMA–DODT), the absent O atom could decrease the flexibility of P(EGDMA-EDT).…”

Section: Resultsmentioning

confidence: 99%

“…According to the results, 25 wt % LiTFSI was chosen as the final concentration for the CPE. At ambient temperature, the maximum conductivity of the CPE reached up to 3.02 × 10 –5 S/cm, which was slightly higher than that of the corresponding oxygen-based electrolyte . Surprisingly, the temperature dependence of the ionic conductivity of the CPE did not fit the Vogel–Tamman–Fulcher (VTF) empirical equation but can be described by the Arrhenius equation with an activation energy of 0.44 eV (Figure a).…”

Section: Resultsmentioning

confidence: 99%

“…The cyclic voltammetry curve at ambient temperature is demonstrated in Figure c. A cathodic peak at 1.0 V and an anodic peak at 2.0 V were probably due to the specific components in the CPE . Fortunately, the asymmetric cell presented a reversible lithium deposition/striping behavior on stainless steel.…”

Section: Resultsmentioning

confidence: 99%

“…The FT-IR of EDT was not tested due to the strong irritating odor. Nonetheless, the C−S stretching vibration absorption peak at around 1105 cm −1 appears in the spectrum of P(EGDMA-EDT), 39 implying the successful thiol-Michael addition click reaction. The NMR results also confirmed the same conclusion (Figure S2).…”

Section: Resultsmentioning

confidence: 99%

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Facile and Powerful In Situ Polymerization Strategy for Sulfur-Based All-Solid Polymer Electrolytes in Lithium Batteries

Xiao

Xuan

et al. 2021

ACS Appl. Mater. Interfaces

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All-solid-state polymer electrolytes can improve the safety of lithium batteries. However, the common Bellcore polymer electrolyte technology faces several issues such as wasting a mass of solvent, high manufacturing cost, and poor interfacial compatibility between polymer electrolytes and electrodes. Herein, we propose an in situ polymerization technique to synthesize all-solid-state polymer electrolytes by a thiol-Michael addition click reaction. The alternating copolymer is made from the Michael addition reaction of ethylene glycol dimethacrylate (EGDMA) and 1,2-ethane dithiol (EDT). At ambient temperature, the obtained composite polymer electrolyte displays an ionic conductivity of 3.02 × 10–5 S/cm, an electrochemical window of 4.5 V, and a lithium-ion transference number of 0.45. In light of this unique polymerization process, the traditional fabrication method of liquid electrolyte-based lithium batteries can be adopted in the current study for the preparation of all-solid-state Li/LiFePO4 batteries. It was found that the assembled all-solid-state Li/LiFePO4 batteries exhibited superior charging/discharging performance and preferable safety. Thus, this facile and powerful in situ polymerization strategy may open up a new approach for the design and fabrication of all-solid-state batteries with desirable performances.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Facile and Powerful In Situ Polymerization Strategy for Sulfur-Based All-Solid Polymer Electrolytes in Lithium Batteries

Xiao

Xuan

et al. 2021

ACS Appl. Mater. Interfaces

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“…[ 99 ] Guo and coworkers demonstrated that a CS group based‐polymer enabled LiFePO 4 /SPE/Li battery delivered a specific capacity of 140 mAg −1 at 0.05 C with a capacity retention of 99% after 100 cycles. [ 100 ]…”

Section: Strategies To Improve Li+ Conductivitymentioning

confidence: 99%

Solid Polymer Electrolytes with High Conductivity and Transference Number of Li Ions for Li‐Based Rechargeable Batteries

et al. 2021

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Smart electronics and wearable devices require batteries with increased energy density, enhanced safety, and improved mechanical flexibility. However, current state‐of‐the‐art Li‐based rechargeable batteries (LBRBs) use highly reactive and flowable liquid electrolytes, severely limiting their ability to meet the above requirements. Therefore, solid polymer electrolytes (SPEs) are introduced to tackle the issues of liquid electrolytes. Nevertheless, due to their low Li+ conductivity and Li+ transference number (LITN) (around 10−5 S cm−1 and 0.5, respectively), SPE‐based room temperature LBRBs are still in their early stages of development. This paper reviews the principles of Li+ conduction inside SPEs and the corresponding strategies to improve the Li+ conductivity and LITN of SPEs. Some representative applications of SPEs in high‐energy density, safe, and flexible LBRBs are then introduced and prospected.

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Facile Access to CO₂‐Sourced Polythiocarbonate Dynamic Networks And Their Potential As Solid‐State Electrolytes For Lithium Metal Batteries

et al. 2023

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Poly(monothiocarbonate)s are an interesting class of sulfurcontaining materials whose application as solid polymer electrolytes was barely studied, certainly due to the elusive production of diversified polymer architectures. Herein, a new liquid CO 2 -sourced bis(α-alkylidene cyclic carbonate) monomer was designed at high yield to allow its one-step and solventfree copolymerization with thiols to produce linear and crosslinked polymers in mild conditions. The influence of the monomer structure on the thermal properties and the ionic conductivity of linear polymers was assessed. The polymer network showed to be thermally re-processable owing to the dynamic nature of the monothiocarbonate bonds. A solid polymer electrolyte was easily obtained from the cross-linked material when combined with LiTFSI salt. The solid polymer electrolyte was characterized by an ionic conductivity reaching 6 × 10 À 6 S cm À 1 at room temperature with a lithium transference number of 0.37 and a wide electrochemical stability window (4.0 V vs Li 0 /Li + ) valid for lithium cycling. This work thus reports an attractive valorizing approach for carbon dioxide to deliver under mild operating conditions poly(monothiocarbonate)containing novel covalent adaptable network materials of high potential for energy applications, especially as solid electrolytes for batteries.

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In-situ generation of high performance thiol-conjugated solid polymer electrolytes via reliable thiol-acrylate click chemistry

Cited by 24 publications

References 39 publications

Facile and Powerful In Situ Polymerization Strategy for Sulfur-Based All-Solid Polymer Electrolytes in Lithium Batteries

Facile and Powerful In Situ Polymerization Strategy for Sulfur-Based All-Solid Polymer Electrolytes in Lithium Batteries

Solid Polymer Electrolytes with High Conductivity and Transference Number of Li Ions for Li‐Based Rechargeable Batteries

Facile Access to CO₂‐Sourced Polythiocarbonate Dynamic Networks And Their Potential As Solid‐State Electrolytes For Lithium Metal Batteries

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In-situ generation of high performance thiol-conjugated solid polymer electrolytes via reliable thiol-acrylate click chemistry

Cited by 24 publications

References 39 publications

Facile and Powerful In Situ Polymerization Strategy for Sulfur-Based All-Solid Polymer Electrolytes in Lithium Batteries

Facile and Powerful In Situ Polymerization Strategy for Sulfur-Based All-Solid Polymer Electrolytes in Lithium Batteries

Solid Polymer Electrolytes with High Conductivity and Transference Number of Li Ions for Li‐Based Rechargeable Batteries

Facile Access to CO2‐Sourced Polythiocarbonate Dynamic Networks And Their Potential As Solid‐State Electrolytes For Lithium Metal Batteries

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Facile Access to CO₂‐Sourced Polythiocarbonate Dynamic Networks And Their Potential As Solid‐State Electrolytes For Lithium Metal Batteries