Flexible interfaces between Si anodes and composite electrolytes consisting of poly(propylene carbonates) and garnets for solid-state batteries

Huo, Hanyu; Sun, Jiyang; Chen, Cheng; Meng, Xuying; He, Minghui; Zhao, Ning; Guo, Xiangxin

doi:10.1016/j.jpowsour.2018.02.026

Cited by 86 publications

(59 citation statements)

References 47 publications

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“…Because of the intrinsic superior properties of this SCE, a flexible LiFePO 4 |LLZTO/PPC|Li 4 Ti 5 O 12 battery can deliver excellent rate capability and superior cycling stability, with specific capacities of 123.0 and 80 mAh g −1 at 0.1 and 5 C, respectively, and 95% capacity retention after 800 cycles at 1 C under 20 °C. Similarly, another LLZTO/PPC SCE with ~11.8 wt%LLZTO prepared by Huo et al in 2018 also displayed high ionic conductivity of 4.2 × 10 −4 S cm −1 at room temperature [127] . Furthermore, this SCE can be well compatible with Si electrode.…”

Section: Llzo-based/novel Polymers Scesmentioning

confidence: 77%

“…Meanwhile, PEO shows high viscosity, poor filmforming ability as well as narrow electrochemical window, which further hinder the LLZO-based/PEO SCEs for large scale application in real batteries. To explore LLZO-based/polymer SCEs with better properties, other novel types of polymers, such as poly(propylene carbonate) (PPC) [125][126][127][128] , poly(vinylidene fluoride) (PVDF) [129][130][131][132] , poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) [133][134][135][136][137] , poly(ethylene carbonate) (PEC) [138] , polyacrylonitrile (PAN) [139] , poly(methyl methacrylate) (PMMA) [140] , cross-linked polyethyleneglycol [141] , poly(ethylene glycol) diacrylate (PEGDA) [142] and mixed polymers [143][144][145] have been developed as the substrate for constructing novel LLZObased/polymer SCEs. Table 4 summarizes the intrinsic properties of the typical LLZO-based/novel polymer SCEs and the electrochemical performances of ASSLBs assembled by these novel SCEs.…”

Section: Llzo-based/novel Polymers Scesmentioning

confidence: 99%

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Status and prospect of garnet/polymer solid composite electrolytes for all-solid-state lithium batteries

Deng

Chen

2020

Journal of Energy Chemistry

187

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Section: Llzo-based/novel Polymers Scesmentioning

confidence: 77%

Section: Llzo-based/novel Polymers Scesmentioning

confidence: 99%

Status and prospect of garnet/polymer solid composite electrolytes for all-solid-state lithium batteries

Deng

Chen

2020

Journal of Energy Chemistry

187

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“…At 0.5C, the cell delivered a capacity of 116 mAh g −1 , with the capacity retention being 95% after 1000 cycles. A composite electrolyte consisting of PPC, LiTFSI, and LLZTO was proposed by Huo et al [237]. Such a free-standing PPC-LiTFSI-Li 6.75 La 3 Zr 1.75 Ta 0.25 O 12 all-solid-state composite electrolyte for a flexible ambient-temperature solid lithium battery was fabricated by Zhang et al [232].…”

Section: Polymer Electrolytesmentioning

confidence: 99%

Building Better Batteries in the Solid State: A Review

et al. 2019

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Most of the current commercialized lithium batteries employ liquid electrolytes, despite their vulnerability to battery fire hazards, because they avoid the formation of dendrites on the anode side, which is commonly encountered in solid-state batteries. In a review two years ago, we focused on the challenges and issues facing lithium metal for solid-state rechargeable batteries, pointed to the progress made in addressing this drawback, and concluded that a situation could be envisioned where solid-state batteries would again win over liquid batteries for different applications in the near future. However, an additional drawback of solid-state batteries is the lower ionic conductivity of the electrolyte. Therefore, extensive research efforts have been invested in the last few years to overcome this problem, the reward of which has been significant progress. It is the purpose of this review to report these recent works and the state of the art on solid electrolytes. In addition to solid electrolytes stricto sensu, there are other electrolytes that are mainly solids, but with some added liquid. In some cases, the amount of liquid added is only on the microliter scale; the addition of liquid is aimed at only improving the contact between a solid-state electrolyte and an electrode, for instance. In some other cases, the amount of liquid is larger, as in the case of gel polymers. It is also an acceptable solution if the amount of liquid is small enough to maintain the safety of the cell; such cases are also considered in this review. Different chemistries are examined, including not only Li-air, Li–O2, and Li–S, but also sodium-ion batteries, which are also subject to intensive research. The challenges toward commercialization are also considered.

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“…由于正极与石榴石型电解质固-固接触面积小, 润湿性差, 在界面处易形成气孔、裂纹等缺陷导致高的界面阻抗。通过界面处理工艺, 如: 电解质片上原位生长电极层 [56] 、脉冲激光沉积(PLD) [46,61] 、溶胶-凝胶法 [62] 、共烧结 [47,52,56] 等方法能有效改善正极与石榴石型电解质界面结构, 降低界面阻抗。Park 图 4 ASSLB 的合成过程示意图 [57] Fig. 4 Schematic illustration of the synthesis procedure [57] [52,64] 、Nb [65] 、Ta [65] 层, 构建成石榴石/PVDF-HFP/电极结构 [70] , 使石榴石电解质与正极的界面阻抗由 6.5×10 4 [73] 、PVDF-HFP [74][75] 、聚丙烯腈(PAN) [76] 、聚碳酸丙烯酯(PPC) [76][77] )与石榴石型固体电解质复合形成柔性复合型电解质, "软化"电解质界面, 增大正极与固体电解质的接触面积, 有效降低了界面阻抗。郭向欣课题组 [71] 将 LLZTO 纳米颗粒作为填料分散在 PEO 中, 形成 40 μm 厚的柔性复合电解质膜, 增加了正极/电解质的界面接触面积, 有效降低了界面阻抗 ; 但随着聚合物不可避免的分解 , PEO:…”

Section: 界面处理工艺优化unclassified

Recent Advancements in Interface between Cathode and Garnet Solid Electrolyte for All Solid State Li-ion Batteries

Dong¹,

Lei²,

Lai³

et al. 2019

Journal of Inorganic Materials

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All-solid-state lithium battery (ASSLB) with inorganic solid state electrolytes is one of promising candidates for electric vehicles and large-scale smart grids for storage of alternative energy resources due to their benefits in safety, energy density, operable temperature range, and longer cycle life. As the key component in ASSLB, inorganic lithium-ion-based solid-state electrolytes (SSEs), especially the garnet-type solid electrolytes that own ionic conductivities in the order of 10 -3 S·cm -1 at room temperature and are relative safe vs. Li metal, have obvious advantages in ASSLB. However, interfacial instability and their poor solid−solid contact between garnet and cathode result in high interfacial resistance, low efficiency, and poor cycle performance. Based on these understandings and analyses of interface characteristics and issues, this work presents a brief review on modification of interface, covering composite cathode, composite electrolyte, interface engineering, and interface layer．Some approaches of improving interface 第 7 期李栋, 等: 全固态锂离子电池正极与石榴石型固体电解质界面的研究进展第 7 期李栋, 等: 全固态锂离子电池正极与石榴石型固体电解质界面的研究进展 697

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Flexible interfaces between Si anodes and composite electrolytes consisting of poly(propylene carbonates) and garnets for solid-state batteries

Cited by 86 publications

References 47 publications

Status and prospect of garnet/polymer solid composite electrolytes for all-solid-state lithium batteries

Status and prospect of garnet/polymer solid composite electrolytes for all-solid-state lithium batteries

Building Better Batteries in the Solid State: A Review

Recent Advancements in Interface between Cathode and Garnet Solid Electrolyte for All Solid State Li-ion Batteries

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