High-Energy-Density Solid-Electrolyte-Based Liquid Li-S and Li-Se Batteries

Jin, Yang; Li, Kai; Lang, Jialiang; Jiang, Xin; Zheng, Zhikun; Su, Qinghe; Huang, Zeya; Long, Yuanzheng; Wang, Chang‐An; Wu, Hui; Cui, Yi

doi:10.1016/j.joule.2019.09.003

Cited by 121 publications

(93 citation statements)

References 32 publications

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“… 37 In 2020, researchers at Stanford reported intermediate-temperature liquid Li–S and Li–Se batteries enabled by a garnet type Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) solid electrolyte. 36 The battery configuration consists of a liquid Li anode, a molten S or Se cathode with carbon black to improve the contact, and an LLZTO ceramic tube electrolyte just like BASE. In the proof-of-concept test, the Li–S and Li–Se battery was evaluated at 240 and 300 °C, respectively, with the charge/discharge schemes shown in Figure 3 b.…”

Section: Intermediate-temperature Liquid Metal Batteriesmentioning

confidence: 99%

Next-Generation Liquid Metal Batteries Based on the Chemistry of Fusible Alloys

Ding

Guo

2020

ACS Cent. Sci.

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With a long cycle life, high rate capability, and facile cell fabrication, liquid metal batteries are regarded as a promising energy storage technology to achieve better utilization of intermittent renewable energy sources. Nevertheless, conventional liquid metal batteries need to be operated at relatively high temperatures (>240 °C) to maintain molten-state electrodes and high conductivity of electrolytes. Intermediate and room-temperature liquid metal batteries, circumventing complex thermal management as well as issues related to sealing and corrosion, are emerging as a novel energy system for widespread implementation. In this Outlook, we elaborate the appealing features of fusible alloys-based liquid metals for energy storage devices and describe the metallurgical fundamentals, cost, and safety analysis of fusible alloys. Recent advances are discussed covering the rational screening of metallic alloys, interfacial engineering on the electrodes, and design of advanced electrolytes. In the end, we provide perspectives on current challenges and future opportunities in this field. This outlook not only aims to provide a design principle for high performance liquid metal batteries, but also inspires further development of novel energy systems beyond conventional solid-state batteries and high-temperature batteries.

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Section: Intermediate-temperature Liquid Metal Batteriesmentioning

confidence: 99%

Next-Generation Liquid Metal Batteries Based on the Chemistry of Fusible Alloys

Ding

Guo

2020

ACS Cent. Sci.

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“…[ 3 ] Despite the exciting progress achieved, few attention has been paid to realizing Li metal anode with good thermal tolerance, which can be coupled with solid ceramic/molten salt electrolyte and applied in high‐temperature liquid metal batteries for grid energy storage, and improve the thermal safety of regular Li metal batteries. [ 4 ] Successful example has been shown by special battery configuration using molten liquid Li salt electrolyte and pure liquid metallic Li for high‐temperature liquid metal batteries. [ 5 ] However, the complex battery configuration and high reactivity of liquid metallic Li cause high costs and safety concerns.…”

Section: Figurementioning

confidence: 99%

A Lithium Metal Anode Surviving Battery Cycling Above 200 °C

Wan

Bao

et al. 2020

Advanced Materials

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Lithium (Li) metal electrode cannot endure elevated temperature (e.g., >200 °C) with the regular battery configuration due to its low melting point (180.5 °C) and high reactivity, which restricts its application in high‐temperature Li metal batteries for energy storage and causes safety concerns for regular ambient‐temperature Li metal batteries. Herein, this work reports a Li5B4/Li composite featuring a 3D Li5B4 fibrillar framework filled with metallic Li, which maintains its initial structure at 325 °C in Ar atmosphere without leakage of the liquid Li. The capillary force caused by the porous structure of the Li4B5 fibrillar framework, together with its lithiophilic surface, restricts the leakage of liquid metallic Li and enables good thermal tolerance of the Li5B4/Li composite. Thus, it can be facilely operated for rechargeable high‐temperature Li metal batteries. Li5B4/Li electrodes are coupled with a garnet‐type ceramic electrolyte (Li6.5La3Zr0.5Ta1.5O12) to fabricate symmetric cells, which exhibit stable Li stripping/plating behaviors with low overpotential of ≈6 mV at 200 °C using a regular sandwich‐type cell configuration. This work affords new insights into realizing a stable Li metal anode for high‐temperature Li metal batteries with a simple battery configuration and high safety, which is different from traditional molten‐salt Li metal batteries using a pristine metallic Li anode.

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“…Comprehensively, various EES devices are available; however, batteries [15][16][17][18] and supercapacitors [19][20][21] are considered as two main classes of EES devices due to their high energy and power densities [12,[22][23][24][25][26]. In the view of safety and life cycle, supercapacitors headed over the batteries [27,28], but they are backward in the energy density [29]. The Li-ion batteries (LIBs) have higher energy density range of ~ 150-200 Wh kg −1 [30,31], which is even higher than that of other types of the batteries such as Ni-Cd [32,33], Ni-MH [33], lead-acid [34] and so on.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

et al. 2020

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HIGHLIGHTS• This article reviewed the recent progress on material challenges, charge storage mechanism, and electrochemical performance evaluation of supercapatteries.• Supercapatteries bridge the gap between supercapacitors (low energy density) and batteries (low power density). Fig. 1 a Ragone plot of various electrochemical energy conversion and storage devices [43]. b Schematic illustration of charge storage mechanism of EDL capacitor in porous carbon electrode. c Representation of EDLC structures: Helmholtz model, Gouy-Chapman model and Gouy-Chapman-Stern model. Schematic representation of the charge storage mechanisms in pseudocapacitor; d Intercalation (bulk redox) and e surface redox Nano-Micro Lett.(2020) 12:85Page 5 of 46 85 Table 1 Classification of various energy storage devices according to their charge storage mechanisms NFCS non-Faradaic capacitive storage = EDLC storage, CFS capacitive Faradaic storage = pseudocapacitive storage, NCFS non-capacitive Faradaic storage = battery-type storage Device Supercapattery Battery Supercapacitor Hybrid supercapacitor EDLC Pseudocapacitors

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High-Energy-Density Solid-Electrolyte-Based Liquid Li-S and Li-Se Batteries

Cited by 121 publications

References 32 publications

Next-Generation Liquid Metal Batteries Based on the Chemistry of Fusible Alloys

Next-Generation Liquid Metal Batteries Based on the Chemistry of Fusible Alloys

A Lithium Metal Anode Surviving Battery Cycling Above 200 °C

Comprehensive Insight into the Mechanism, Material Selection and Performance Evaluation of Supercapatteries

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