Lithium Batteries: Solvent‐Free Synthesis of Thin, Flexible, Nonflammable Garnet‐Based Composite Solid Electrolyte for All‐Solid‐State Lithium Batteries (Adv. Energy Mater. 12/2020)

Jiang, Taoli; He, Pingge; Wang, Guoxu; Shen, Yang; Nan, Ce‐Wen; Fan, Li‐Zhen

doi:10.1002/aenm.202070052

Cited by 45 publications

(59 citation statements)

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“…These affect the ability to store Li + effectively, resulting in stresses during cycling. [ 3,4,7 ] To ensure the reliability of future energy‐storage devices that require a higher rate capacity and longer cycle life, significant efforts have been expended into developing new anode materials to fulfill these requirements.…”

Section: Introductionmentioning

confidence: 99%

High Performance Lithium‐Ion Batteries Using Layered 2H‐MoTe₂ as Anode

Panda

Gangwar

Muthuraj

et al. 2020

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The major challenges faced by candidate electrode materials in lithium‐ion batteries (LIBs) include their low electronic and ionic conductivities. 2D van der Waals materials with good electronic conductivity and weak interlayer interaction have been intensively studied in the electrochemical processes involving ion migrations. In particular, molybdenum ditelluride (MoTe2) has emerged as a new material for energy storage applications. Though 2H‐MoTe2 with hexagonal semiconducting phase is expected to facilitate more efficient ion insertion/deinsertion than the monoclinic semi‐metallic phase, its application as an anode in LIB has been elusive. Here, 2H‐MoTe2, prepared by a solid‐state synthesis route, has been employed as an efficient anode with remarkable Li+ storage capacity. The as‐prepared 2H‐MoTe2 electrodes exhibit an initial specific capacity of 432 mAh g−1 and retain a high reversible specific capacity of 291 mAh g−1 after 260 cycles at 1.0 A g−1. Further, a full‐cell prototype is demonstrated by using 2H‐MoTe2 anode with lithium cobalt oxide cathode, showing a high energy density of 454 Wh kg−1 (based on the MoTe2 mass) and capacity retention of 80% over 100 cycles. Synchrotron‐based in situ X‐ray absorption near‐edge structures have revealed the unique lithium reaction pathway and storage mechanism, which is supported by density functional theory based calculations.

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Section: Introductionmentioning

confidence: 99%

High Performance Lithium‐Ion Batteries Using Layered 2H‐MoTe₂ as Anode

Panda

Gangwar

Muthuraj

et al. 2020

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“…Unlike nanoparticles, nanowires, and nanosheets, there are many kinds of 3D ceramic structures. Although most of them are network structures, the 3D structures discussed in this section are prepared as a whole, which is different from the network structures constructed by nanofibers [167] . As shown in Figure 13a, Bae et al.…”

Section: Ceramic/polymer Composite Solid‐state Electrolytementioning

confidence: 94%

“…Although most of them are network structures, the 3D structures discussed in this section are prepared as a whole, which is different from the network structures constructed by nanofibers. [167] As shown in Figure 13a, Bae et al synthesized an LLTO network by dissolving the LLTO precursor in a hydrogel-crosslinked network that is eventually removed. The high ionic conductivity of 8.8 × 10 À 5 S cm À 1 at room temperature can be attributed to the continuous interface pathway and abundant surface vacancies for lithium ions to hop on LLTO.…”

Section: Three-dimensional Ceramics Materials/polymer Compositementioning

confidence: 99%

Designing Ceramic/Polymer Composite as Highly Ionic Conductive Solid‐State Electrolytes

Qian

Chen

et al. 2020

Batteries & Supercaps

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The design and fabrication of solid‐state electrolytes (SSEs) with high ionic conductivity is the most crucial obstacle for all‐solid‐state lithium batteries (ASSLBs). However, though polymer SSEs have the advantages of effective interfacial contact, polymer ASSLBs have not been able to deliver performance comparable to conventional lithium‐ion batteries (LIBs) due to slow ion transport within the polymer framework. In contrast, the high inherent ionic conductivity of ceramic SSEs is limited by the poor electrolyte/electrode interfacial contact. Therefore, the concept of ceramic/polymer composite electrolytes (C/PCEs) was proposed to combine the advantages of these two electrolytes and simultaneously overcome their weaknesses. This work reviews the recent progress in C/PCEs development according to the morphology of the ceramic components in C/PCEs. In this review, we investigate the inherent relationship between the structures of C/PCEs and the performance of the resultant SSEs, and subsequently conclude some general C/PCE design principles for future SSEs.

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“…However, fillers easily aggregate in the matrix (when the filler content exceed a certain amount), leading to phase separation, which deteriorates the well‐defined ion‐conducting path, resulting in significant decrease in ionic conductivity and energy density of batteries. [ 32–34 ] In order to greatly combine the advantages of ceramic electrolytes and SPEs, multilayer or sandwich structured electrolytes are developed, which can not only effectively suppress the Li dendrite growth (ceramic electrolyte), but also form a stable and low resistance interface with electrodes (SPEs). [ 35–39 ] Thus, the optimized structure of electrolytes with high ionic conductivity and appropriate mechanical strength to ensure the rapid transfer of Li + and inhibit the growth of lithium dendrites is urgently required to meet the increasing demand of high‐performance solid‐state lithium batteries.…”

Section: Introductionmentioning

confidence: 99%

Asymmetric Polymer Electrolyte Constructed by Metal–Organic Framework for Solid‐State, Dendrite‐Free Lithium Metal Battery

Wang

Fan

2020

Adv Funct Materials

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145

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Solid-state polymer electrolytes (SPEs) with flexibility, easy processability, and low cost have been regarded as promising alternatives for conventional liquid electrolytes in next-generation high-safety lithium metal batteries. However, SPEs generally suffer poor strength to block Li dendrite growth during the charge/discharge process, which severely limits their wide practical applications. Here, a rational design of 3D cross-linked network asymmetric SPE modified with a metal-organic framework (MOF) layer on one side is proposed and prepared through an in-situ polymerization process. In such unique asymmetric SPEs, the nanoscale MOF layer acts as a shield that effectively suppresses the growth of Li dendrites and regulates the uniform Li + transport, and the polymer electrolyte can be scattered in the whole cell to endow the smooth transmission of Li +. As a result, the asymmetric SPE exhibits high ionic conductivity, wide electrochemical window, high thermal stability and safety, which endows the Li/Li symmetrical cell with outstanding cyclic stability (operate well over 800 h at a current density of 0.1 mA cm −2 for the capacity of 0.1 mAh cm −2).

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Lithium Batteries: Solvent‐Free Synthesis of Thin, Flexible, Nonflammable Garnet‐Based Composite Solid Electrolyte for All‐Solid‐State Lithium Batteries (Adv. Energy Mater. 12/2020)

Cited by 45 publications

References 0 publications

High Performance Lithium‐Ion Batteries Using Layered 2H‐MoTe₂ as Anode

High Performance Lithium‐Ion Batteries Using Layered 2H‐MoTe₂ as Anode

Designing Ceramic/Polymer Composite as Highly Ionic Conductive Solid‐State Electrolytes

Asymmetric Polymer Electrolyte Constructed by Metal–Organic Framework for Solid‐State, Dendrite‐Free Lithium Metal Battery

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Lithium Batteries: Solvent‐Free Synthesis of Thin, Flexible, Nonflammable Garnet‐Based Composite Solid Electrolyte for All‐Solid‐State Lithium Batteries (Adv. Energy Mater. 12/2020)

Cited by 45 publications

References 0 publications

High Performance Lithium‐Ion Batteries Using Layered 2H‐MoTe2 as Anode

High Performance Lithium‐Ion Batteries Using Layered 2H‐MoTe2 as Anode

Designing Ceramic/Polymer Composite as Highly Ionic Conductive Solid‐State Electrolytes

Asymmetric Polymer Electrolyte Constructed by Metal–Organic Framework for Solid‐State, Dendrite‐Free Lithium Metal Battery

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High Performance Lithium‐Ion Batteries Using Layered 2H‐MoTe₂ as Anode

High Performance Lithium‐Ion Batteries Using Layered 2H‐MoTe₂ as Anode