PEO/garnet composite electrolytes for solid-state lithium batteries: From “ceramic-in-polymer” to “polymer-in-ceramic”

Chen, Long; Li, Yutao; Li, Shuai-Peng; Fan, Li‐Zhen; Chen, Nan; Goodenough, John B.

doi:10.1016/j.nanoen.2017.12.037

Cited by 1,085 publications

(796 citation statements)

References 39 publications

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“…The ceramic nanowires acted as a conductive network in the polymer matrix, allowing rapid ion transport on its surfaces. Goodenough and co‐workers developed a series of low‐cost composite ceramic/polymer solid electrolytes that ranged from “ceramic in polymer” to “polymer in ceramic”. They used garnet Li 6.5 La 3 Zr 1.5 Ta 0.5 O 12 (LLZTO) as the ceramic, PEO as the polymer, and LiTFSI as the salt.…”

Section: Solid‐state Electrolytesmentioning

confidence: 99%

Electrolytes for Rechargeable Lithium–Air Batteries

et al. 2019

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Lithium–air batteries are promising devices for electrochemical energy storage because of their ultrahigh energy density. However, it is still challenging to achieve practical Li–air batteries because of their severe capacity fading and poor rate capability. Electrolytes are the prime suspects for cell failure. In this Review, we focus on the opportunities and challenges of electrolytes for rechargeable Li–air batteries. A detailed summary of the reaction mechanisms, internal compositions, instability factors, selection criteria, and design ideas of the considered electrolytes is provided to obtain appropriate strategies to meet the battery requirements. In particular, ionic liquid (IL) electrolytes and solid‐state electrolytes show exciting opportunities to control both the high energy density and safety.

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Section: Solid‐state Electrolytesmentioning

confidence: 99%

Electrolytes for Rechargeable Lithium–Air Batteries

et al. 2019

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“…[25] It has been demonstrated that Li metal uniformly deposits underneath PEO-Li 7 La 3 Zr 1.75 Nb 0.25 O 12 (LLZNO) film without forming lithiumd endrites, resulting in significantly improvedc ycling stability. [29] To improve the ionic conductivity of polymer-inorganic composite HSSEs,c ombinationso fv arious polymera nd inorganic components have been actively explored. [26] Understanding the ionic conducting mechanism of polymerinorganic composites would be critically important for rational design of HSSEs.I ne arly studies, it was believed that the improvedi onic conductivity of polymer-inorganic HSSEs is attributed to the cation transfer within the interphase region aroundt he inorganic particles.…”

Section: Composite Polymer-inorganic Hssesmentioning

confidence: 99%

Recent Progress of Hybrid Solid‐State Electrolytes for Lithium Batteries

Liu

et al. 2018

Chemistry A European J

132

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Conventional liquid electrolytes for lithium batteries usually suffer from irreversible decomposition and safety concerns. Solid state electrolytes (SSEs) have been considered as the key for advanced lithium batteries with improved energy density and safety, whereas challenges remain for polymer and inorganic SSEs. Recently, hybrid solid-state electrolytes (HSSEs) that integrate the merits of different electrolyte systems have been under intensive study. Herein, we summarize the recent progress of HSSEs with different compositions and structures. The design principle of each type of HSSEs are discussed, as well as their ionic conducting mechanism, electrochemical performance and effects of compositional/structural control. Finally, challenges and perspectives are provided for the future development of HSSEs and solid-state lithium batteries.

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“…Tremendous attempts have been tried to mitigate uncontrolled lithium dendrites, mainly including: (i) improving the interface properties between electrode and electrolyte; (ii) constructing lithium‐based composites with 3D hosts. To improve the interface properties, various strategies are proposed and explored, including prefabricating artificial SEI films, precoating chemically inert protective layers, inducing additives in the electrolyte to amend SEI films, and even developing solid‐state electrolyte . Meanwhile, comparing to these attempts on stabilizing lithium anode surface, efforts on constructing lithium‐based composites with 3D hosts are superior on the reduction of local current density and bulk effect during cycling.…”

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confidence: 99%

Gradient‐Distributed Nucleation Seeds on Conductive Host for a Dendrite‐Free and High‐Rate Lithium Metal Anode

Yang

Shi

et al. 2019

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Much attention is paid to metal lithium as a hopeful negative material for reversible batteries with a high specific capacity. Although applying 3D hosts can relieve the dendrite growth to some extent, gradient‐distributed lithium ion in 3D uniform hosts still induces uncontrolled lithium dendrites growth, especially at high lithium capacity and high current density. Herein, a 3D conductive carbon nanofiber framework with gradient‐distributed ZnO particles as nucleation seeds (G‐CNF) to regulate lithium deposition is proposed. Based on such a unique structure, the G‐CNF electrode exhibits a high average Coulombic efficiency (CE) of 98.1% for 700 cycles at 0.5 mA cm−2. Even at 5 mA cm−2, the G‐CNF electrode performs a stable cycling process and high CE of 96.0% for over 200 cycles. When the lithium‐deposited G‐CNF (G‐CNF‐Li) anode is applied in a full cell with a commercial LiFePO4 cathode, it exhibits a stable capacity of 115 mAh g−1 and high retention of 95.7% after 300 cycles. Through inducing the gradient‐distributed nucleation seeds to counter the existing Li‐ion concentration polarization, a uniform and stable lithium deposition process in the 3D host is achieved even under the condition of high current density.

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PEO/garnet composite electrolytes for solid-state lithium batteries: From “ceramic-in-polymer” to “polymer-in-ceramic”

Cited by 1,085 publications

References 39 publications

Electrolytes for Rechargeable Lithium–Air Batteries

Electrolytes for Rechargeable Lithium–Air Batteries

Recent Progress of Hybrid Solid‐State Electrolytes for Lithium Batteries

Gradient‐Distributed Nucleation Seeds on Conductive Host for a Dendrite‐Free and High‐Rate Lithium Metal Anode

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