2018
DOI: 10.1002/smll.201801420
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Effective Suppression of Lithium Dendrite Growth Using a Flexible Single‐Ion Conducting Polymer Electrolyte

Abstract: A novel single-ion conducting polymer electrolyte (SIPE) membrane with high lithium-ion transference number, good mechanical strength, and excellent ionic conductivity is designed and synthesized by facile coupling of lithium bis(allylmalonato) borate (LiBAMB), pentaerythritol tetrakis (2-mercaptoacetate) (PETMP) and 3,6-dioxa-1,8-octanedithiol (DODT) in an electrospun poly(vinylidienefluoride) (PVDF) supporting membrane via a one-step photoinitiated in situ thiol-ene click reaction. The structure-optimized Li… Show more

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Cited by 150 publications
(98 citation statements)
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“…10,11 To circumvent these problems, single ion conductors with high lithium ion transference number (t + z 1) have been proposed to be utilized in lithium ion batteries, due to the intrinsic ability to signicantly reduce the concentration polarization and restrict the growth of lithium dendrites during cycle performance. [12][13][14] As for single ion conductors, the anions are covalently tethered onto polymer or inorganic backbones, which restricts the mobility of anions to maximize the transference number of lithium ions. 9,15 Among them, ceramic electrolyte with high ionic conductivity at room temperature have captured much attention.…”
Section: Introductionmentioning
confidence: 99%
“…10,11 To circumvent these problems, single ion conductors with high lithium ion transference number (t + z 1) have been proposed to be utilized in lithium ion batteries, due to the intrinsic ability to signicantly reduce the concentration polarization and restrict the growth of lithium dendrites during cycle performance. [12][13][14] As for single ion conductors, the anions are covalently tethered onto polymer or inorganic backbones, which restricts the mobility of anions to maximize the transference number of lithium ions. 9,15 Among them, ceramic electrolyte with high ionic conductivity at room temperature have captured much attention.…”
Section: Introductionmentioning
confidence: 99%
“…But the native SEI layer exhibits low ionic conductivity (4.2 Â 10 À8 S cm À1 ), 10 structural instability and chemical heterogeneity, 11 which induce heterogeneous electrodeposition resulting in dendrite growth. Many studies have disclosed various measures such as use of solid electrolytes or gel electrolytes, 4,8,[12][13][14][15][16] construction of an artificial solid electrolyte interface (SEI) layer, [17][18][19][20][21][22][23]54 design of functionalized separators, [24][25][26][27][28][29][30] and improvement of the structure of current collectors 2,[31][32][33][34][35][36][37] to suppress the formation and growth of lithium dendrites. Construction of an artificial SEI layer is one good solution to solve the challenge of suppressing the formation and growth of lithium dendrites.…”
Section: Introductionmentioning
confidence: 99%
“…Liquid electrolyte (LE) is usually reported with high ionic conductivity. However, it suffers from safety problems, including fast dendrite growth and liquid leakage . Solid electrolyte with good mechanical properties has been reported to inhibit dendrite growth.…”
Section: Introductionmentioning
confidence: 99%