Enhanced ionic conductivity of Li3.5Si0.5P0.5O4 with addition of lithium borate

Wang, Dawei; Zhong, Guiming; Li, Yixiao; Gong, Zhengliang; McDonald, Matthew J.; Mi, Jin‐Xiao; Fu, Riqiang; Shi, Zhicong; Yang, Yong

doi:10.1016/j.ssi.2015.10.009

Cited by 14 publications

(4 citation statements)

References 16 publications

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“…to prepare a series of LISICON‐type inorganic solid electrolytes with an ionic conductivity of 3–4 × 10 −4 S cm −1 at room temperature. [ 131 ] Examples include Li 4−2 x Co x GeO 4 (0.15 ≤ x ≤ 0.8), [ 132 ] Li 3+ x Cr 1− x M x O 4 (M = Ge, Ti; 0.35 < x < 0.92), [ 133 ] Li 4 ± x Si 1− x X x O 4 (X = P, Al, or Ge), [ 134 ] and Li 3 V 2 (PO 4 ) 3 . [ 135 ]…”

Section: Solid‐state Electrolytesmentioning

confidence: 99%

Inhibition of Polysulfide Shuttles in Li–S Batteries: Modified Separators and Solid‐State Electrolytes

Zhang

Zheng

et al. 2020

Advanced Energy Materials

219

162

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Lithium–sulfur (Li–S) batteries are one of the most promising next‐generation energy storage systems due to their ultrahigh theoretical specific capacity. However, their practical applications are seriously hindered by some inevitable disadvantages such as the insulative nature of sulfur and Li2S, volume expansion of the cathode, the shuttle effect of polysulfides, and the growth of lithium dendrites on the anode. Of these, the polysulfide shuttle effect is one of the most critical issues causing the irreversible loss of active materials and rapid capacity degradation of batteries. Herein, modified separators with functional coatings inhibiting the migration of polysulfides are enumerated based on three effects toward polysulfides: the adsorption effect, separation effect, and catalytic effect. To solve the shuttle effect problem, researchers have replaced liquid electrolytes with solid‐state electrolytes. In this review, solid‐state electrolytes for lithium–sulfur batteries are grouped into three categories: inorganic solid electrolytes, solid polymer electrolytes, and composite solid electrolytes. Challenges and perspectives regarding the development of an optimized strategy to inhibit the polysulfide shuttle for enhancing cycle stability in lithium–sulfur batteries are also proposed.

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Section: Solid‐state Electrolytesmentioning

confidence: 99%

Inhibition of Polysulfide Shuttles in Li–S Batteries: Modified Separators and Solid‐State Electrolytes

Zhang

Zheng

et al. 2020

Advanced Energy Materials

219

162

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“…All plots of samples are consisted of a low-frequency tail and a high-frequency semicircle, which are typical characteristic profiles of ionic conductive ceramics. It is hard to distinguish the resistance of grain boundary from the impedance profile, only the bulk resistance (Rb) and the total resistance (Rt) of samples are discussed in this paper [17,22] . Compared with pure LLTO, a steeper slope in the low frequency region and a smaller semicircle diameter in the high frequency region could be found for Table 1.…”

Section: Resultsmentioning

confidence: 99%

LiF Assisted Synthesis Perovskite-type Li0.35La0.55TiO3 Solid Electrolyte for Rechargeable Lithium-metal Batteries

Yao

Zhang

Zhu

et al. 2020

Preprint

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Perovskite-type solid-state electrolytes, Li0.35La0.55TiO3-xwt% LiF (LLTO-Fx, x = 0, 2, 4 and 6), were successfully synthesized through solid-state reaction method. The effects of LiF addition amount on LLTO crystal structure, morphologies and ionic conductivity have been investigated. All samples formed perovskite structure and the grain sizes were gradually increased with the increase of LiF content. Moreover, owing to the highest relative density (95.4%), LLTO-F2 electrolyte exhibited a highest total conductivity of 1.02×10-4 S/cm with a relative low activation energy of 0.26 eV, which is suitable for use in solid-state batteries. The cell Li/LLTO-F2/V2O5 exhibited a specific capacity about 270 mAh/g in the first few cycles and maintained 156 mAh/g after 100 cycles, demonstrating good cycling properties. Moreover, cells assembled with different cathodes, such as LiFePO4 and LiCoO2, also displayed excellent electrochemical performances. The results suggest that sintering additive (LiF) is very effective step towards ultimately achieve a safe solid-state lithium battery system.

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“…Considering the geometry of the SE pellet, the calculated Li-ion conductivity of the LSPO sample was about 4.8 Â 10 −6 S cm −1 , which is consistent with the values reported previously. 23 The LSPO SE has $2 orders of magnitude lower Li-ion conductivity than other oxide-SEs such as garnet-type SEs and NASICON-type SEs.…”

Section: The Structural Properties Of Lspomentioning

confidence: 98%

Superior compatibilities of a LISICON-type oxide solid electrolyte enable high energy density all-solid-state batteries

Woo

Kang

2022

J. Mater. Chem. A

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Enhanced ionic conductivity of Li3.5Si0.5P0.5O4 with addition of lithium borate

Cited by 14 publications

References 16 publications

Inhibition of Polysulfide Shuttles in Li–S Batteries: Modified Separators and Solid‐State Electrolytes

Inhibition of Polysulfide Shuttles in Li–S Batteries: Modified Separators and Solid‐State Electrolytes

LiF Assisted Synthesis Perovskite-type Li0.35La0.55TiO3 Solid Electrolyte for Rechargeable Lithium-metal Batteries

Superior compatibilities of a LISICON-type oxide solid electrolyte enable high energy density all-solid-state batteries

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Enhanced ionic conductivity of Li3.5Si0.5P0.5O4 with addition of lithium borate

Cited by 14 publications

References 16 publications

Inhibition of Polysulfide Shuttles in Li–S Batteries: Modified Separators and Solid‐State Electrolytes

Inhibition of Polysulfide Shuttles in Li–S Batteries: Modified Separators and Solid‐State Electrolytes

LiF&nbsp;Assisted Synthesis Perovskite-type Li0.35La0.55TiO3&nbsp;Solid Electrolyte for Rechargeable Lithium-metal Batteries

Superior compatibilities of a LISICON-type oxide solid electrolyte enable high energy density all-solid-state batteries

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Product

Resources

About

LiF Assisted Synthesis Perovskite-type Li0.35La0.55TiO3 Solid Electrolyte for Rechargeable Lithium-metal Batteries