Ambient Lithium–SO<sub>2</sub> Batteries with Ionic Liquids as Electrolytes

Xing, Huabin; Liao, Chen; Yang, Qiwei; Veith, Gabriel M.; Guo, Bingkun; Sun, Xiao‐Guang; Ren, Qilong; Hu, Yong‐Sheng; Dai, Sheng

doi:10.1002/ange.201309539

Cited by 21 publications

(7 citation statements)

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“…Consequently, the accumulation of inactive and insulating by-products on the pores of the gas electrode would restrict the active reaction sites and the transport of reactants, including lithium ions and SO 2 gas, finally resulting in the cell failures. In previous studies on primary Li-SO 2 batteries, the formation of such by-products has generally been attributed to the self-decomposition of Li 2 S 2 O 4 due to its thermodynamic instability 11 48 60 . According to the XPS analysis of the surface of the cycled cathodes in Fig.…”

Section: Discussionmentioning

confidence: 99%

“…The primary Li-SO 2 battery offers a high energy density in a wide operating temperature range with exceptionally long shelf-life and has thus been commercialized for military and aerospace applications since it was developed in the late 1960s (refs 7 , 8 , 9 , 10 ). Recently, the Li-SO 2 chemistry was revisited and proposed as a promising rechargeable battery chemistry 11 12 . Under an analogous cell configuration adopted from lithium-oxygen batteries, it has been demonstrated that a reversible electrochemical reaction between Li and SO 2 is possible with the formation and decomposition of lithium dithionite (Li 2 S 2 O 4 ).…”

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confidence: 99%

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High-efficiency and high-power rechargeable lithium–sulfur dioxide batteries exploiting conventional carbonate-based electrolytes

Park

Lim

et al. 2017

Nat Commun

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Shedding new light on conventional batteries sometimes inspires a chemistry adoptable for rechargeable batteries. Recently, the primary lithium-sulfur dioxide battery, which offers a high energy density and long shelf-life, is successfully renewed as a promising rechargeable system exhibiting small polarization and good reversibility. Here, we demonstrate for the first time that reversible operation of the lithium-sulfur dioxide battery is also possible by exploiting conventional carbonate-based electrolytes. Theoretical and experimental studies reveal that the sulfur dioxide electrochemistry is highly stable in carbonate-based electrolytes, enabling the reversible formation of lithium dithionite. The use of the carbonate-based electrolyte leads to a remarkable enhancement of power and reversibility; furthermore, the optimized lithium-sulfur dioxide battery with catalysts achieves outstanding cycle stability for over 450 cycles with 0.2 V polarization. This study highlights the potential promise of lithium-sulfur dioxide chemistry along with the viability of conventional carbonate-based electrolytes in metal-gas rechargeable systems.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

High-efficiency and high-power rechargeable lithium–sulfur dioxide batteries exploiting conventional carbonate-based electrolytes

Park

Lim

et al. 2017

Nat Commun

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“…Na-SO 2 batteries with high theoretical energy density are attracting more attention as well. Referring to the achievements on Li-SO 2 , [47][48][49] rechargeable Na-SO 2 batteries were first proposed by Kim's group and can be one of the promising candidates for next-generation energy storage systems as well. 50 The research on Na-SO 2 batteries is at the primary stage, focusing on obtaining reversible performance.…”

Section: Sodium-sulfur-dioxide Batteriesmentioning

confidence: 99%

Developments and Perspectives on Emerging High-Energy-Density Sodium-Metal Batteries

Wang

et al. 2019

Chem

147

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Emerging rechargeable sodium-metal batteries (SMBs) are gaining extensive attention because of the high energy density, low cost, and promising potentials for large-scale applications. The mechanism investigation and performance optimization of SMBs are of great significance for fundamental science and practical applications. Consequently, this review provides fundamental insights into the cell chemistry and recent progress on several representative SMBs, including Na-O 2 , Na-CO 2 , Na-SO 2 , and room-temperature Na-S batteries, for which the Na-storage mechanisms, potential solutions for enhancing battery performance, and future perspectives are discussed. We emphasize the importance and challenges of sodium-metal anodes, as well as summarize and highlight feasible strategies to address the challenging issues facing them. Combined with current research achievements, this review offers future research directions from the viewpoint of better SMB full cells regarding cathode design and anode protection with compatible electrolyte systems.

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“…Ionic liquid (IL) is regarded as a kind of green solvent with many excellent properties of negligible volatility, nonflammability and high ionic conductivity, and thermal stability [ 11 ]. As reported, ILs can keep stable under high temperatures, not producing significant amounts of volatile products until they reach ~300 °C [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

HKUST-1@IL-Li Solid-state Electrolyte with 3D Ionic Channels and Enhanced Fast Li+ Transport for Lithium Metal Batteries at High Temperature

Chen

Song

et al. 2021

Nanomaterials

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The challenge of safety problems in lithium batteries caused by conventional electrolytes at high temperatures is addressed in this study. A novel solid electrolyte (HKUST-1@IL-Li) was fabricated by immobilizing ionic liquid ([EMIM][TFSI]) in the nanopores of a HKUST-1 metal–organic framework. 3D angstrom-level ionic channels of the metal–organic framework (MOF) host were used to restrict electrolyte anions and acted as “highways” for fast Li+ transport. In addition, lower interfacial resistance between HKUST-1@IL-Li and electrodes was achieved by a wetted contact through open tunnels at the atomic scale. Excellent high thermal stability up to 300 °C and electrochemical properties are observed, including ionic conductivities and Li+ transference numbers of 0.68 × 10-4 S·cm-1 and 0.46, respectively, at 25 °C, and 6.85 × 10-4 S·cm-1 and 0.68, respectively, at 100 °C. A stable Li metal plating/stripping process was observed at 100 °C, suggesting an effectively suppressed growth of Li dendrites. The as-fabricated LiFePO4/HKUST-1@IL-Li/Li solid-state battery exhibits remarkable performance at high temperature with an initial discharge capacity of 144 mAh g-1 at 0.5 C and a high capacity retention of 92% after 100 cycles. Thus, the solid electrolyte in this study demonstrates promising applicability in lithium metal batteries with high performance under extreme thermal environmental conditions.

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Ambient Lithium–SO₂ Batteries with Ionic Liquids as Electrolytes

Cited by 21 publications

References 50 publications

High-efficiency and high-power rechargeable lithium–sulfur dioxide batteries exploiting conventional carbonate-based electrolytes

High-efficiency and high-power rechargeable lithium–sulfur dioxide batteries exploiting conventional carbonate-based electrolytes

Developments and Perspectives on Emerging High-Energy-Density Sodium-Metal Batteries

HKUST-1@IL-Li Solid-state Electrolyte with 3D Ionic Channels and Enhanced Fast Li+ Transport for Lithium Metal Batteries at High Temperature

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Ambient Lithium–SO2 Batteries with Ionic Liquids as Electrolytes

Cited by 21 publications

References 50 publications

High-efficiency and high-power rechargeable lithium–sulfur dioxide batteries exploiting conventional carbonate-based electrolytes

High-efficiency and high-power rechargeable lithium–sulfur dioxide batteries exploiting conventional carbonate-based electrolytes

Developments and Perspectives on Emerging High-Energy-Density Sodium-Metal Batteries

HKUST-1@IL-Li Solid-state Electrolyte with 3D Ionic Channels and Enhanced Fast Li+ Transport for Lithium Metal Batteries at High Temperature

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Product

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About

Ambient Lithium–SO₂ Batteries with Ionic Liquids as Electrolytes