Free-standing polydimethylsiloxane-based cross-linked network solid polymer electrolytes for future lithium ion battery applications

Grewal, Manjit Singh; Tanaka, Manabu; Kawakami, Hiroyoshi

doi:10.1016/j.electacta.2019.03.172

Cited by 37 publications

(34 citation statements)

References 51 publications

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“…In line with improving the electrode|electrolyte interface in such designs, Wei et al 388 adopted the in situ polymerization process for the preparation of an SPE and cell fabrication by a thiol-ene click reaction. 340,377,452,456,457 For this purpose, they employed materials such as PEGDA oligomer, a multi-functional thiol (pentaerythritol tetra (3-mercaptopropionate), PETMP), DMPA, and LiTFSI salt (Figure 26a). The precursor prepared using the above materials is directly deposited over the LFP cathode and UV-cured to produce a PE integrated composite electrode, followed by LMPB fabrication (Figure 26b).…”

Section: In Situ Processing By Direct Deposition Approachmentioning

confidence: 99%

In situpolymerization process: an essential design tool for lithium polymer batteries

Vijayakumar

Anothumakkool

Kurungot

et al. 2021

Energy Environ. Sci.

199

121

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Section: In Situ Processing By Direct Deposition Approachmentioning

confidence: 99%

In situpolymerization process: an essential design tool for lithium polymer batteries

Vijayakumar

Anothumakkool

Kurungot

et al. 2021

Energy Environ. Sci.

199

121

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“…Polyhedral oligomeric silsesquioxane (POSS) molecular with eight side chains contains epoxy groups around the cage of highly flexible SiO framework as shown in Figure 3e, which is easy to react with ionic conductive chains to form a Li + conducting network. [85][86][87] The POSS network straightens the flexible chain (Figure 3f), lowers the crystallization of the ether backbone, and facilitates the segment mobility of SPE, ending up with a higher ionic conductivity. Furthermore, anions such as TFSI − from lithium salts are restricted by Lewis acid Si 4+ in POSS, thus leading to an increase of t Li+ .…”

Section: Inorganic Hubsmentioning

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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“…The obtained SPE exhibited excellent electric stability and mechanical resistance. Grewal et al synthesized free-standing polydimethylsiloxane-based crosslinked network solid polymer electrolytes via in situ thiol-epoxy polymerization [106]. In the presence of lithium salt and base catalyst, poly(ethylene glycol) diglycidyl ether, mercapto-terminated polydimethylsiloxane, and pentaerythritol tetrakis (3-mercaptopropionate) were copolymerized at the stoichiometric ratio.…”

Section: Crosslinked Polymermentioning

confidence: 99%

“…Without a liquid plasticizer, the crosslinked SPEs exhibited the following: Ionic conductivities between 1.5 × 10 −6 S•cm −1 at room temperature and 1.6 × 10 −4 S•cm −1 at 90 °C; lithium ion transference number of 0.15-0.20; electrochemical window of up to 5.3 V (vs. Li + /Li); thermal resistance of Figure 12. Preparation schemes of comb-like network polymer electrolyte [106]. Reproduced with permission from [103].…”

Section: Crosslinked Polymermentioning

confidence: 99%

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Comprehensive Review of Polymer Architecture for All-Solid-State Lithium Rechargeable Batteries

2020

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Solid-state batteries are an emerging option for next-generation traction batteries because they are safe and have a high energy density. Accordingly, in polymer research, one of the main goals is to achieve solid polymer electrolytes (SPEs) that could be facilely fabricated into any preferred size of thin films with high ionic conductivity as well as favorable mechanical properties. In particular, in the past two decades, many polymer materials of various structures have been applied to improve the performance of SPEs. In this review, the influences of polymer architecture on the physical and electrochemical properties of an SPE in lithium solid polymer batteries are systematically summarized. The discussion mainly focuses on four principal categories: linear, comb-like, hyper-branched, and crosslinked polymers, which have been widely reported in recent investigations as capable of optimizing the balance between mechanical resistance, ionic conductivity, and electrochemical stability. This paper presents new insights into the design and exploration of novel high-performance SPEs for lithium solid polymer batteries.

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Free-standing polydimethylsiloxane-based cross-linked network solid polymer electrolytes for future lithium ion battery applications

Cited by 37 publications

References 51 publications

In situpolymerization process: an essential design tool for lithium polymer batteries

In situpolymerization process: an essential design tool for lithium polymer batteries

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

Comprehensive Review of Polymer Architecture for All-Solid-State Lithium Rechargeable Batteries

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