Carbon Nanofibers Heavy Laden with Li3V2(PO4)3 Particles Featuring Superb Kinetics for High‐Power Lithium Ion Battery

Shin, Jeongyim; Yang, Junghoon; Sergey, Chernov; Song, Myoung‐Chong; Kang, Yong‐Mook

doi:10.1002/advs.201700128

Cited by 51 publications

(28 citation statements)

References 60 publications

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“…Synthesis of materials with al arge surface area significantly improves these materials characteristics.Creating ananosized Li 3 V 2 (PO 4 ) 3 composite with a1D nanofiber morphology leads to ab etter rate and cycle performance in comparison with macro-sized particles. [238] Nanosized structures usually shorten conduction paths either for electron or ion transport thus improving charge/ discharge kinetics.This is the case of the conversion materials because all of them demonstrate very low electronic and ionic conductivity and nanosizing is agood way to overcome these drawbacks.Amixture of interconnected nanosized metallic and lithium halide particles is formed during the reversible conversion reaction. Nanoparticles of metal halides provide faster lithiation speed and smaller cluster size.…”

Section: Size Reductionmentioning

confidence: 99%

Section: Attempts To Improve the Situationmentioning

confidence: 99%

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Advances in the Cathode Materials for Lithium Rechargeable Batteries

et al. 2019

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Section: Size Reductionmentioning

confidence: 99%

Section: Attempts To Improve the Situationmentioning

confidence: 99%

Advances in the Cathode Materials for Lithium Rechargeable Batteries

et al. 2019

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“…One of the major R&D efforts in architecturing conventional LIB electrodes has been the electrical wiring of active materials using nanostructured conducting materials such as graphene and carbon nanotubes, with no concern about the electrolyte wetting onto the active materials. In stark contrast, for ASLB electrodes, connecting and contacting active materials ionically are an additional technical challenge .…”

Section: Electrodesmentioning

confidence: 99%

Design Strategies, Practical Considerations, and New Solution Processes of Sulfide Solid Electrolytes for All‐Solid‐State Batteries

Park

Bai

Kim

et al. 2018

Advanced Energy Materials

473

274

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Since the first demonstration of prototype Li batteries (TiS 2 /Li) in 1976, [1] the develo pment of LIBs to date has been strongly affected by safety issues. One of the major technical breakthroughs for the commer cialization of LIBs was the replacement of Li metal with carbonaceous materials as the anode. [2][3][4] It is well known that the use of Li metal was challenged by serious safety concerns associated with internal short circuit by the dendritic growth of Li metal. [5][6][7] The everrising requirements for higher energy density of LIBs have raised more serious safety concerns. Raising the upper cutoff voltages leads to poorer sta bility at electrode-electrolyte interfaces. [8,9] Ultrathinning the polymeric separators to less than 10 µm, despite the reinforce ments using ceramic materials, [10][11][12] result in more vulnerability toward internal short circuits. These may also be related to degassing, fire, and explosion accidents of LIBs in recent years. Further more, largescale applications of LIBs, such as batterydriven electric vehicles and gridscale energy storages, face unprecedented challenges in terms of safety requirements. [13][14][15] In this regard, solidification of conventional flammable organic liquid electrolytes with inorganic materials, such as superionic conductor solid electrolytes (SEs), is an ideal solution. [16][17][18][19][20][21][22][23][24][25] Another strong motivation in the development of SEs is to unleash the harness of limited energy density for con ventional LIBs by using SEs to stabilize and enable alternative highcapacity electrode materials, such as Li metal anode and sulfur cathode. [15,23] Additionally, the design of allsolidstate Li or Liion batteries (ALSBs) by stacking bipolar electrodes allows the minimization of inactive encasing materials, thereby increasing celllevel energy density. [22,26] The first superionic conductors PbF 2 and Ag 2 S were discov ered by Michael Faraday in 1838. [27] Since then, several notable progresses in the field of solidstate superionic conductors and their newly enabled electrochemical devices had occurred; [27] the development of oxygenion conductors (Ydoped ZrO 2 ) applied to solid oxide fuel cells, the discoveries of Ag + superionic conduc tors (e.g., RbAg 4 I 5 ), and the development of Naion conducting sodium beta alumina (β″Al 2 O 3 ). Currently, it is a promi sing opportunity for Liion SEs to revolutionize LIB technologies Owing to the ever-increasing safety concerns about conventional lithium-ion batteries, whose applications have expanded to include electric vehicles and grid-scale energy storage, batteries with solidified electrolytes that utilize nonflammable inorganic materials are attracting considerable attention. In particular, owing to their superionic conductivities (as high as ≈10 −2 S cm −1 ) and deformability, sulfide materials as the solid electrolytes (SEs) are considered the enabling material for high-energy bulk-type all-solid-state batteries. Herein the authors provide a brief review on recent progress in sulf...

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“…Die Synthese von Materialien mit großer Oberfläche kann die Eigenschaften dieser Materialien erheblich verbessern. Die Herstellung eines nanoskaligen Li 3 V 2 (PO 4 ) 3 ‐Komposits mit einer 1D‐Nanofasermorphologie führt zu einer besseren Raten‐ und Zyklusleistung im Vergleich zu makroskopischen Partikeln . Nanoskalige Strukturen weisen normalerweise kürzere Leitungswege für den Elektronen‐ oder Ionentransport auf und verbessern so die Lade‐/Entladekinetik.…”

Section: Ansätze Zur Optimierung Von Kathodenmaterialienunclassified