Perovskite Membranes with Vertically Aligned Microchannels for All‐Solid‐State Lithium Batteries

Jiang, Zhouyang; Xie, Huiqi; Wang, Haihui; Xiong, Shenglin; Yao, Xiang

doi:10.1002/aenm.201801433

Cited by 197 publications

(93 citation statements)

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“…[1] However, the solubility of the intermediate lithium polysulfides (LiPoSs) results in low Columbic efficiency and rapid capacity fading. [2] Moreover,t he atomic-level LiPoSs adsorption behaviour on sulfur hosts are difficult to study because of al ack of theoretical guidance.T his significantly impedes design and development of efficient sulfur hosts. [3] Thes urface and interface engineering of inorganic materials to construct heterostructured sulfur hosts has received significant attention in lithium-sulfur batteries.…”

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confidence: 99%

2D MoN‐VN Heterostructure To Regulate Polysulfides for Highly Efficient Lithium‐Sulfur Batteries

et al. 2018

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Lithium-sulfur batteries hold promise for nextgeneration batteries.Aproblem, however,i sr apid capacity fading. Moreover,a tomic-level understanding of the chemical interaction between sulfur host and polysulfides is poorly elucidated from at heoretical perspective.H ere,atwo-dimensional (2D) heterostructured MoN-VN is fabricated and investigated as an ew model sulfur host. Theoretical calculations indicate that electronic structure of MoN can be tailored by incorporation of V. This leads to enhanced polysulfides adsorption. Additionally,insitu synchrotron X-raydiffraction and electrochemical measurements reveal effective regulation and utilization of the polysulfides in the MoN-VN.The MoN-VN-based lithium-sulfur batteries have ac apacity of 708 mA hg À1 at 2Cand ac apacity decay as low as 0.068 % per cycle during 500 cycles with sulfur loading of 3.0 mg cm À2 .Compared with lithium-ion batteries,l ithium-sulfur batteries are both low-cost and low-contamination and have ahigh theoretical specific capacity of % 1675 mA hg À1 . [1] However, the solubility of the intermediate lithium polysulfides (LiPoSs) results in low Columbic efficiency and rapid capacity fading. [2] Moreover,t he atomic-level LiPoSs adsorption behaviour on sulfur hosts are difficult to study because of al ack of theoretical guidance.T his significantly impedes design and development of efficient sulfur hosts. [3] Thes urface and interface engineering of inorganic materials to construct heterostructured sulfur hosts has received significant attention in lithium-sulfur batteries. [4] This can achieve regulation of LiPoSs via enhancing LiPoSs chemical adsorption and improving their surface redox kinetics on the heterostructured sulfur hosts,l eading to increased charge/discharge capacity and cycling stability of lithium-sulfur batteries. [5] More importantly,L iPoSs adsorption ability on the heterostructured sulfur hosts can be further improved because of the novel physicochemical properties at interfaces offered by the interfacial effect. [3a] This plays an essential role in further regulating LiPoSs and therefore improving the performance of sulfur hosts in lithium-sulfur batteries.However,origin of the LiPoSs adsorption enhancement has been poorly elucidated due to alack of atomic-level understanding of LiPoSs adsorption behaviour on the heterostructured sulfur hosts. [6] Owing to their uniformly exposed crystal lattices,t wodimensional (2D) sulfur host materials can serve as an ideal model in density functional theory (DFT) computationswhich deals mainly with LiPoSs adsorption energies and adsorption sites identification. [7] More importantly,D FT computations can calculate electronic structures of the sulfur hosts and reveal their adsorption origin. These therefore play ak ey role in gaining atomic-level understanding of LiPoSs adsorption behaviour and exploring suitable sulfur host materials for high-performance lithium-sulfur batteries. [8] To date,D FT computations of various 2D one-component inorganic sulfur host materials,i ncluding laye...

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2D MoN‐VN Heterostructure To Regulate Polysulfides for Highly Efficient Lithium‐Sulfur Batteries

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“…Recently,Jiang et al constructed vertically alignedm icrochannels on the surface of perovskite-type LLTO ceramic membrane through ap hase-inversion method. [95] Then, the PEO-based polymer electrolyte was injected into 3D vertically aligned microchannels to form al ayered composite electrolyte. This framework reduces the interfacial resistanceeffectively and enlarges Li-ion transport between the cathode and solid-state electrolyte.…”

Section: Oxide Ionic Conductorsmentioning

confidence: 99%

Recent Progress in Organic–Inorganic Composite Solid Electrolytes for All‐Solid‐State Lithium Batteries

Zhang

Qin

et al. 2019

Chemistry A European J

128

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Conventional lithium-ion batteries, with flammable organic liquid electrolytes, have seriouss afety problems, which greatly limit their application.A ll-solid-state batteries (ASSBs) have received extensive attention from large-scale energy-storage fields,s uch as electric vehicles (EVs) and intelligent powerg rids, due to their benefits in safety,e nergy density,a nd thermostability.A st he key component of ASSBs, solid electrolytes determine the properties of ASSBs. In past decades, various kinds of solid electrolytes, such as polymers and inorganic electrolytes, have been explored.Amongt hese candidates, organic-inorganic composite solid electrolytes (CSEs) that integrate the advantages of these two differente lectrolytes have been regarded as promising electrolytes for high-performanceA SSBs, and extensive studies have been carried out. Herein,r ecent progress in organic-inorganic CSEs is summarized in terms of the inorganic component, electrochemical performance, effects of the inorganicc eramic nanostructure, and ionic conducting mechanism. Finally,t he main challenges and perspectiveso fo rganic-inorganic CSEs are highlighted for future development.

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“…An interphase with mixed ionic and electronic conductivity will be chemically formed by the Ti reduction reaction, which will lead to degraded interfacial Li + transport, even mechanical and thermal failure . The application of unstable LLTO and LATP must combine with a stable Li + conductive interlayer to avoid direct contact with Li metal …”

Section: Oces In Asslbsmentioning

confidence: 99%

“…Recently, Jiang et al constructed an unsymmetrical perovskite-type LLTO membrane with a vertically aligned microchannel (VAMC) surface structure by a phase-inversion method, as shown in Figure 8a. [51] The VAMC structure was generated by the convection of water (H 2 O) and N-methyl pyrrolidone (NMP) driven by a concentration gradient. This unsymmetrical perovskite membrane had a deep microchannel and a super-thin dense layer (Figure 8b, c).…”

Section: Modified Surface Of Ocesmentioning

confidence: 99%

“…[48,49] The application of unstable LLTO and LATP must combine with a stable Li + conductive interlayer to avoid direct contact with Li metal. [50,51] The properties of qualified OCEs for applications of ASSLBs include (1) a high total (bulk + grain-boundary) Li-ion conductivity (σ Li + > 10 À 4 S cm À 1 ) at room temperature; (2) a sufficient elasticity modulus and densification to inhibit Li dendrite penetration; (3) a wide electrochemical window; (4) excellent chemical/thermal stability with anode/cathode materials; and (5) affordable raw materials and preparation technology. [52]…”

Section: Introductionmentioning

confidence: 99%

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Reducing the Interfacial Resistance in All‐Solid‐State Lithium Batteries Based on Oxide Ceramic Electrolytes

2019

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All‐solid‐state lithium batteries (ASSLBs) are regarded as next‐generation advanced energy‐storage devices, owing to their high energy density and safety. The interfacial resistance is a crucial factor affecting the practical application of ASSLBs. ASSLBs based on oxide‐based ceramic electrolytes (OCEs) still exhibit poor electrochemical performance, owing to the large interfacial resistance. Area‐specific resistance values at the interfaces ranging from thousands of ohms to several ohms per square centimeter have been achieved using multiple strategies. This Review summarizes multiple existing advanced strategies used to reduce the interfacial resistance between OCEs and electrodes through interfacial engineering. We also propose some perspectives for the future development of ASSLBs based on OCEs.

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Perovskite Membranes with Vertically Aligned Microchannels for All‐Solid‐State Lithium Batteries

Cited by 197 publications

References 34 publications

2D MoN‐VN Heterostructure To Regulate Polysulfides for Highly Efficient Lithium‐Sulfur Batteries

2D MoN‐VN Heterostructure To Regulate Polysulfides for Highly Efficient Lithium‐Sulfur Batteries

Recent Progress in Organic–Inorganic Composite Solid Electrolytes for All‐Solid‐State Lithium Batteries

Reducing the Interfacial Resistance in All‐Solid‐State Lithium Batteries Based on Oxide Ceramic Electrolytes

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