Self-assembly synthesis of solid polymer electrolyte with carbonate terminated poly(ethylene glycol) matrix and its application for solid state lithium battery

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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Section: Synergistic Effects From Blendingmentioning

confidence: 99%

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

Meng

Lian

Cui

2020

Small

105

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“…Chen's group also designed a carbonate contained solid polymer electrolyte, combining the merits of PEG and polycarbonate. [7] In fact, researches on polycarbonate have encompassed both fundamental study and solid electrolyte field since 2010. [8] Recently, members of Tominaga group demonstrated an endcapped poly(ethylene carbonate) (PEC) based electrolyte with 120 mol % lithium salt [9] and the introduction of acetate endgroups improved the thermal stability over 30°C.…”

Section: Solid Electrolytesmentioning

confidence: 99%

“…The Mecerreyes group revealed an upgraded polymer electrolyte with ethylene oxide, carbonate ester and lithium‐sulfonimide, which could work as a single‐ion conductor, mainly due to the utilization of carbonate units by offering proper decoupling effect with lithium cations. Chen's group also designed a carbonate contained solid polymer electrolyte, combining the merits of PEG and polycarbonate . In fact, researches on polycarbonate have encompassed both fundamental study and solid electrolyte field since 2010 .…”

Section: Solid Electrolytesmentioning

confidence: 99%

Recent Progress of Electrolyte Design for Lithium Metal Batteries

Wang

et al. 2020

Batteries & Supercaps

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Lithium metal batteries (LMBs) bring a bright future for the industrialization with higher voltage and energy density than conventional lithium ion batteries (LIBs) as lithium metal offers an ultra‐high specific capacity and the lowest electrochemical potential. However, they tend to confront unstable interface with electrolytes, uncontrollable dendrite growth and notorious safety concerns, seriously blocking the practical application of lithium metal anodes. Electrolyte is always considered as the most critical factor, directly affecting the overall battery behavior. In this case, the rearrangement of active components or designing novel electrolytes become indispensable approaches and tremendous efforts are required to seek for positive solutions. Herein, we provide recent advancements in prevailing liquid, solid and gel electrolytes from the perspective of their potential application in LMBs. The key scientific issues related to enhanced performance have also been highlighted.

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“…[1][2][3][4][5] However, the commercial of LMBs has been hindered due to the poor cycle life and severe safety issues caused by volume changes and dendrite growth. [6] With repeated charge-discharge, the formation of Li dendrites will increase internal resistance, and even pierce the separator, which can cause the battery to overheat or short circuit, leading to low cycle life even battery explosion. In addition, Li dendrites will boost the side reactions between electrolytes and Li metal, leading to the continuous consumption of electrolytes and Li.…”

Section: Statusmentioning

confidence: 99%

Electrolytes for Lithium‐ and Sodium‐Metal Batteries

Yang

Wang

et al. 2020

Chemistry An Asian Journal

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High‐energy‐density batteries have attracted significant attention due to the huge demand in electric transportation in future. Metal‐based batteries, especially lithium metal batteries (LMBs) and sodium metal batteries (SMBs), have been hot research topics nowadays. The uncontrolled growth of metal dendrites has retarded the development of LMBs and SMBs. Various electrolytes have been explored to meet the demand of high‐performance metal‐based batteries, such as additives‐contained electrolytes, polymer electrolytes, and solid‐state electrolytes. To guide the development of electrolytes in LMBs and SMBs, we organize this roadmap to give out the status of present research and future challenges in this field. We also hope that the readers can get the knowledge and ideas from this roadmap.

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Self-assembly synthesis of solid polymer electrolyte with carbonate terminated poly(ethylene glycol) matrix and its application for solid state lithium battery

Cited by 30 publications

References 40 publications

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

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

Recent Progress of Electrolyte Design for Lithium Metal Batteries

Electrolytes for Lithium‐ and Sodium‐Metal Batteries

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