Li 3 PO 4 -doped Li 7 P 3 S 11 glass-ceramic electrolytes with enhanced lithium ion conductivities and application in all-solid-state batteries

Huang, Baotong; Yao, Xiayin; Huang, Zhen; Guan, Yibiao; Yi, Jin; Xu, Xin

doi:10.1016/j.jpowsour.2015.02.160

Cited by 105 publications

(56 citation statements)

References 30 publications

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“…4. Assuming simple equivalent circuits, R 1 (R 2 Q 2 )Q 56 , R 1 (R 2 Q 2 )(R 3 Q 3 )Q 4 , and R 1 (R 2 Q 2 )(Q 3 (R 3 W)), the EIS data were fitted, in each case not resulting in very good fits, see Supplementary Fig. 4 and Supplementary Table 1.…”

Section: Resultsmentioning

confidence: 99%

“…4 and Supplementary Table 1. Given the small number of parameters, and aiming at an accurate determination of R 1 , the bulk solid electrolyte resistance, and R 2 , the grain boundary resistance between the solid electrolyte and the Li 2 S cathode, the best choice appears to be the most simple circuit, R 1 (R 2 Q 2 )Q 56 for the pristine mixtures. For the cycled mixtures, an additional semicircle indicates the establishment of an another interface, possible at the In anode, which was most accurately fit by the R 1 (R 2 Q 2 )(R 3 Q 3 )Q 4 equivalent circuit.…”

Section: Resultsmentioning

confidence: 99%

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Accessing the bottleneck in all-solid state batteries, lithium-ion transport over the solid-electrolyte-electrode interface

et al. 2017

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Solid-state batteries potentially offer increased lithium-ion battery energy density and safety as required for large-scale production of electrical vehicles. One of the key challenges toward high-performance solid-state batteries is the large impedance posed by the electrode–electrolyte interface. However, direct assessment of the lithium-ion transport across realistic electrode–electrolyte interfaces is tedious. Here we report two-dimensional lithium-ion exchange NMR accessing the spontaneous lithium-ion transport, providing insight on the influence of electrode preparation and battery cycling on the lithium-ion transport over the interface between an argyrodite solid-electrolyte and a sulfide electrode. Interfacial conductivity is shown to depend strongly on the preparation method and demonstrated to drop dramatically after a few electrochemical (dis)charge cycles due to both losses in interfacial contact and increased diffusional barriers. The reported exchange NMR facilitates non-invasive and selective measurement of lithium-ion interfacial transport, providing insight that can guide the electrolyte–electrode interface design for future all-solid-state batteries.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Accessing the bottleneck in all-solid state batteries, lithium-ion transport over the solid-electrolyte-electrode interface

et al. 2017

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“…The synthesis of Li 10 GeP 2 S 12 (LGPS) electrolyte can be found elsewhere . For 70 % Li 2 S–29 % P 2 S 5 –1 % P 2 O 5 (LPOS), the preparation method is similar to that reported in previous literature, except for the change of the dopant . At room temperature, the LGPS and LPOS sulfide electrolytes exhibit lithium ionic conductivities of 8.27×10 −3 and 2.0×10 −3 S cm −1 , respectively.…”

Section: Methodsmentioning

confidence: 99%

NiS Nanorods as Cathode Materials for All‐Solid‐State Lithium Batteries with Excellent Rate Capability and Cycling Stability

Peng

et al. 2016

ChemElectroChem

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Rate capability and cycling stability are the great challenges of all‐solid‐state lithium batteries, owing to the low lithium ion transfer kinetics in solid materials and poor interfacial compatibility between electrodes and electrolytes. In this work, one‐dimensional nanostructured NiS and lithium metal are firstly employed in Li/70 % Li2S–29 % P2O5–1 % P2O5/Li10GeP2S12/NiS all‐solid‐state lithium batteries, exhibiting excellent rate capability and cycling stability. NiS nanorods, with a diameter of 20–50 nm and length of 2–3 μm, are prepared in a controllable manner by using a solvothermal method. Electrochemical performance measurements show that the reversible discharge capacities of NiS nanorod electrodes can be as high as 670, 401, and 299 mAh g−1 at the current densities of 100, 250, and 500 mA g−1, respectively. Also, it displays excellent cycling stability, showing reversible discharge capacities up to 338 and 243 mAh g−1 after 100 cycles at current densities of 250 and 500 mA g−1, respectively. The electrochemical reaction mechanism of the NiS nanorods in all‐solid‐state lithium batteries is revealed by combining cyclic voltammetry and ex situ XRD measurements in detail, showing a reversible conversion reaction that is almost identical with that in the traditional lithium‐ion batteries that utilize liquid electrolytes.

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“…The all‐solid‐state battery with commercial Li 2 S as cathode and 70Li 2 S–30P 2 S 5 as electrolyte displayed first discharge capacity of 1055 mA h g −1 and capacity retention of 57.2% after 10 cycles. To further improve the ionic conductivity, doping is an effective method, which can fabricate point defects and broaden Li‐ion transmission channels . Tu and co‐workers prepared a novel high‐quality MoS 2 doped Li 2 S–P 2 S 5 glass–ceramic electrolyte for Li–S batteries by ball milling with high energy.…”

Section: Solid‐state Electrolytes For Preventing the Lipss Shuttlementioning

confidence: 99%

Progress and Perspective of Solid‐State Lithium–Sulfur Batteries

Lei

Shi

et al. 2018

Adv Funct Materials

209

154

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Due to high energy density, low cost, and nontoxicity, lithium-sulfur (Li-S) batteries are considered as the most promising candidate to satisfy the requirement from the accelerated development of electric vehicles. However, Li-S batteries are subjected to lithium polysulfides (LiPSs) shuttling due to their high dissolution in liquid electrolyte, resulting in low columbic efficiency and poor cycling performance. Moreover, the Li metal as an indispensable anode of Li-S batteries shows serious safety issues derived from the lithium dendrite formation. The replacement of liquid electrolytes with solid-state electrolytes (SSEs) has been recognized as a fundamental approach to effectively address above problems. In this review, the progress on applying various classes of SSEs including gel, solid-state polymer, ceramic, and composite electrolytes to solve the issues of Li-S batteries is summarized. The specific capacity of Li-S batteries is effectively improved due to the suppression of LiPSs shuttling by SSEs, while the rate and cycling performance remain relatively poor owing to the limited ionic conductivity and high interfacial resistance. Designing smart electrode/electrolyte integrated architectures, enabling the high ionic transportation pathway and compatible electrode/electrolyte interface, may be an effective way to achieve high performance solid-state Li-S batteries. and strategies have been attempted to address the above main issues of Li-S batteries, including using sulfur host materials, [4] unique separators [5] and interlayer, [6] composite of electrolyte, [7] novel binders, [8] etc. However, these approaches can only solve problems to a certain extent. Some review papers have concluded and commented on above potential solutions. [9] Recently, solid-state electrolytes (SSEs) including gel, solid-state polymer, ceramic, and composite electrolytes are attracting increasing interest for application in Li-S batteries to fundamentally solve the issues of Li-S batteries caused by liquid electrolyte. Furthermore, nonflammable solid electrolytes would improve the safety performance of Li-S batteries remarkably. In the past few years, more and more research work focused on applying SSEs in Li-S batteries to solve the LiPSs dissolution. [10] Some review papers about Li-S batteries have also emphasized the significance of SSEs. However, until now, there are few review papers specially summarizing the progress and prospect of the solid-state Li-S batteries.This review aims to provide an overview of SSEs for addressing the major drawbacks of Li-S batteries, including the electrochemical reaction process of S cathode and its corresponding problems as well as traditional solutions, the recent research progress of solid-state Li-S batteries using gel, solidstate polymer, ceramic, and composite electrolytes, and strategies for overcoming the deficiencies of solid-state electrolytes such as low room-temperature ionic conductivity and high Solid-State Electrolytes interfacial resistance. In addtition, the mechanism a...

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Li 3 PO 4 -doped Li 7 P 3 S 11 glass-ceramic electrolytes with enhanced lithium ion conductivities and application in all-solid-state batteries

Cited by 105 publications

References 30 publications

Accessing the bottleneck in all-solid state batteries, lithium-ion transport over the solid-electrolyte-electrode interface

Accessing the bottleneck in all-solid state batteries, lithium-ion transport over the solid-electrolyte-electrode interface

NiS Nanorods as Cathode Materials for All‐Solid‐State Lithium Batteries with Excellent Rate Capability and Cycling Stability

Progress and Perspective of Solid‐State Lithium–Sulfur Batteries

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