GLORIA

GEOMAR Library Ocean Research Information Access

X

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Wiley  (5)
  • Zheng, Hongpeng  (5)
Material
Publisher
  • Wiley  (5)
Person/Organisation
Language
Years
Subjects(RVK)
  • 1
    Online Resource
    Online Resource
    Origin of Lithiophilicity of Lithium Garnets: Compositing or Cleaning?
    Wiley ; 2022
    In:  Advanced Functional Materials Vol. 32, No. 41 ( 2022-10)
    Details
    In: Advanced Functional Materials, Wiley, Vol. 32, No. 41 ( 2022-10)
    Abstract: Garnet‐type Li 6.5 La 3 Zr 1.5 Ta 0.5 O 12 (LLZTO), a promising solid‐state electrolyte, is reported to exhibit lithiophobicity. Herein, it is demonstrated that the origin of the lithiophobicity is closely related to the surface compositions of both the lithium and LLZTO. Surface impurities with high melting points such as Li 2 O, Li 2 CO 3 , LiOH, or LiF inhibit the wettability between lithium metal and LLZTO, and the widely adopted compositing strategy may improve the wettability by merely breaking the surface impurity layers. A simple but effective “polishing‐and‐spreading” strategy is proposed to remove the surface impurities and obtain clean Li/LLZTO interfaces. Thus, a tight and continuous Li/LLZTO interface with an interfacial resistance of 17.5 Ω cm 2 is achieved, which leads to stable cycling of the symmetric Li cells and a critical current density up to 2.8 mA cm –2 . This work provides a new perspective to understand the lithiophilicity of garnet‐type electrolytes and contributes to designing robust Li/garnet interfaces.
    Type of Medium: Online Resource
    ISSN: 1616-301X , 1616-3028
    URL: Issue
    URL: Article
    DOI: 10.1002/adfm.v32.41
    DOI: 10.1002/adfm.202205778
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2029061-5
    detail.hit.zdb_id: 2039420-2
    SSG: 11
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 2
    Online Resource
    Online Resource
    Sn‐O Dual‐Substituted Chlorine‐Rich Argyrodite Electrolyte with Enhanced Moisture and Electrochemical Stability
    Wiley ; 2023
    In:  Advanced Functional Materials Vol. 33, No. 11 ( 2023-03)
    Details
    In: Advanced Functional Materials, Wiley, Vol. 33, No. 11 ( 2023-03)
    Abstract: Chlorine‐rich argyrodite sulfides are one of the most promising solid electrolytes for all‐solid‐state batteries owing to their remarkable ionic conductivity and decent mechanical properties. However, their application has been limited by imperfections such as moisture instability and poor electrochemical stability. Herein, a Sn and O is proposed dual‐substitution strategy in Li 5.4 PS 4.4 Cl 1.6 (LPSC) to improve the moisture tolerance and boost the electrochemical performance. The optimized composition of Li 5.5 (P 0.9 Sn 0.1 )(S 4.2 O 0.2 )Cl 1.6 (LPSC‐10) sintered at 500 °C exhibits a room‐temperature ionic conductivity of 8.7 mS cm −1 , an electrochemical window up to 5 V, a critical current density of 1.2 mA cm −2 , and stable lithium plating/striping. When exposed to humid air, LPSC‐10 exhibits a small increment in total resistance, generates a mild amount of H 2 S gas, and displays favorable structure stability after heat treatment. The first‐principles calculation confirms that the dual‐substituted composition less tends to be hydrolyzed than the un‐substituted one. The all‐solid‐state battery with LiIn|NMC811 electrodes presents a high initial discharge capacity of 103.6 mAh g −1 at 0.5 C rates and maintains 101.4 mAh g −1 at the 100th cycle, with a 97.9% capacity retention rate. The present study opens a new alternative for simultaneously promoting moisture and electrochemical stability.
    Type of Medium: Online Resource
    ISSN: 1616-301X , 1616-3028
    URL: Issue
    URL: Article
    DOI: 10.1002/adfm.v33.11
    DOI: 10.1002/adfm.202211805
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2029061-5
    detail.hit.zdb_id: 2039420-2
    SSG: 11
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    Influence of dry‐ and wet‐milled LLZTO particles on the sintered pellets
    Wiley ; 2023
    In:  Journal of the American Ceramic Society Vol. 106, No. 1 ( 2023-01), p. 274-284
    Details
    In: Journal of the American Ceramic Society, Wiley, Vol. 106, No. 1 ( 2023-01), p. 274-284
    Abstract: A Ta‐doped Li 7 La 3 Zr 2 O 12 (LLZTO) solid electrolyte is a promising candidate for all‐solid‐state lithium battery due to its high ionic conductivity and stability against lithium metal. In this work, physicochemical properties of both dry‐ and wet‐milled LLZTO particles were investigated. Based on X‐ray diffraction, Fourier transform–infrared, thermogravimetric analysis, and scanning electron microscopy results, it was confirmed that highly reactive LLZTO powder prepared in dry milling conditions exhibited faster size reduction, rougher surface morphology, fewer surface impurities, and less agglomerated particles, in contrast to those in wet milling conditions. Sintering these dry‐milled powders at 1320°C for 10 min in the air via solid‐state reaction produced dense ceramic pellets with a relative density of 97.4%. The room‐temperature ionic conductivity for LLZTO pellet via the dry milling was determined to be 6.94 × 10 −4  S cm −1 . Li–sulfur batteries based on the pellets showed an initial discharge capacity of 1301 mA h g −1 and a coulombic efficiency of 99.82% when cycled at room temperature. The effect of the milled powder on the sintered pellets was discussed in terms of boundary mobility, pore mobility, and morphology.
    Type of Medium: Online Resource
    ISSN: 0002-7820 , 1551-2916
    URL: Issue
    URL: Article
    DOI: 10.1111/jace.v106.1
    DOI: 10.1111/jace.18765
    RVK:
    VA 1120
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2008170-4
    detail.hit.zdb_id: 219232-9
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 4
    Online Resource
    Online Resource
    High‐Rate and Long‐Life Au Nanorods/LiFePO 4 Composite Cathode for Lithium‐Ion Batteries
    Wiley ; 2022
    In:  Energy Technology Vol. 10, No. 3 ( 2022-03)
    Details
    In: Energy Technology, Wiley, Vol. 10, No. 3 ( 2022-03)
    Abstract: LiFePO 4 is considered a promising cathode material for lithium‐ion batteries for its high theoretical specific capacity and cycling stability. However, low electrical conductivity and Li‐ion diffusion coefficient limit its electrochemical performances. Herein, gold nanorods (Au NRs) with a length of about 40 nm (aspect ratio of 7:1) are successfully prepared by a seed‐mediated growth method. LiFePO 4 composite cathodes with 0.1/0.5/1 wt% Au NRs are compared with a pristine LiFePO 4 cathode, which shows that the addition of Au NRs can improve the electron and lithium‐ion transport. Specifically, the addition of 1 wt% Au NRs increases the electrical conductivity and lithium‐ion diffusion coefficient to 1.99 S cm −1 and 1.32 × 10 −14  cm 2  s −1 , respectively. The distribution of relaxation times analysis is carried out for the electrochemical impedance spectrum data to distinguish different electrochemical reactions within corresponding frequency regions. Particularly, LiFePO 4 with 0.1 wt% Au NRs exhibits a superior rate capability (133.7 mAh g −1 at 2C and 91.9 mAh g −1 at 5C) and stable cycling performance.
    Type of Medium: Online Resource
    ISSN: 2194-4288 , 2194-4296
    URL: Issue
    URL: Article
    DOI: 10.1002/ente.v10.3
    DOI: 10.1002/ente.202100841
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2700412-0
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 5
    Online Resource
    Online Resource
    Intrinsic Lithiophilicity of Li–Garnet Electrolytes Enabling High‐Rate Lithium Cycling
    Wiley ; 2020
    In:  Advanced Functional Materials Vol. 30, No. 6 ( 2020-02)
    Details
    In: Advanced Functional Materials, Wiley, Vol. 30, No. 6 ( 2020-02)
    Abstract: Solid‐state lithium batteries are widely considered as next‐generation lithium‐ion battery technology due to the potential advantages in safety and performance. Among the various solid electrolyte materials, Li–garnet electrolytes are promising due to their high ionic conductivity and good chemical and electrochemical stabilities. However, the high electrode/electrolyte interfacial impedance is one of the major challenges. Moreover, short circuiting caused by lithium dendrite formation is reported when using Li–garnet electrolytes. Here, it is demonstrated that Li–garnet electrolytes wet well with lithium metal by removing the intrinsic impurity layer on the surface of the lithium metal. The Li/garnet interfacial impedance is determined to be 6.95 Ω cm 2 at room temperature. Lithium symmetric cells based on the Li–garnet electrolytes are cycled at room temperature for 950 h and current density as high as 13.3 mA cm −2 without showing signs of short circuiting. Experimental and computational results reveal that it is the surface oxide layer on the lithium metal together with the garnet surface that majorly determines the Li/garnet interfacial property. These findings suggest that removing the superficial impurity layer on the lithium metal can enhance the wettability, which may impact the manufacturing process of future high energy density garnet‐based solid‐state lithium batteries.
    Type of Medium: Online Resource
    ISSN: 1616-301X , 1616-3028
    URL: Issue
    URL: Article
    DOI: 10.1002/adfm.v30.6
    DOI: 10.1002/adfm.201906189
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2029061-5
    detail.hit.zdb_id: 2039420-2
    SSG: 11
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...