Low-temperature Li–S battery enabled by CoFe bimetallic catalysts

Gao, Ning; Zhang, Yujiao; Chen, Chong; Li, Bao; Li, Wen-Biao; Lu, Huiqiang; Yu, Le; Zheng, Suiping; Bao, Wan-Su

doi:10.1039/d2ta00406b

Cited by 50 publications

(25 citation statements)

References 70 publications

(84 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The decreased temperature would also weaken the solid ionic diffusivity within the bulk electrode materials. [ 8,74 ] The sluggish ion transport kinetics would hamper the access of ions into the active sites in the matrix of electrode materials, suffering a severe capacity decline of low‐temperature batteries. [ 75 ] Therefore, the electrochemical behaviors of electrodes depend significantly on the structural properties of electrode materials.…”

Section: Strategies For Promoting Low‐temperature Ion Transportmentioning

confidence: 99%

Ion Transport Kinetics in Low‐Temperature Lithium Metal Batteries

Chen

et al. 2022

Advanced Energy Materials

127

View full text Add to dashboard Cite

The deployment of rechargeable batteries is crucial for the operation of advanced portable electronics and electric vehicles under harsh environment. However, commercial lithium‐ion batteries using ethylene carbonate electrolytes suffer from severe loss in cell energy density at extremely low temperature. Lithium metal batteries (LMBs), which use Li metal as anode rather than graphite, are expected to push the baseline energy density of low‐temperature devices at the cell level. Albeit promising, the kinetic limitations of standard cell chemistries under subzero operation condition inevitably hamper the cyclability of LMBs, resulting in a severe decline in plating/stripping reversibility and short‐circuit hazards due to the dendritic growth. Such performance degradation becomes more pronounced with decreasing temperature, ascribing to sluggish ion transport kinetics during charging/discharging processes which includes Li+ solvation/desolvation, ion transport through bulk electrolyte, as well as ion diffusion within solid electrolyte interphase and bulk electrode materials at low temperature. In this review, the critical limiting factors and challenges for low‐temperature ion transport behaviors are systematically reviewed and discussed. The strategies to enhance Li+ transport kinetics in electrolytes, electrodes, and electrolyte/electrode interface are comprehensively summarized. Finally, perspective on future research direction of low‐temperature LMBs toward practical applications is proposed.

show abstract

Section: Strategies For Promoting Low‐temperature Ion Transportmentioning

confidence: 99%

Ion Transport Kinetics in Low‐Temperature Lithium Metal Batteries

Chen

et al. 2022

Advanced Energy Materials

127

View full text Add to dashboard Cite

show abstract

“…3d), there are spin–orbit dipoles of Co 2p 3/2 and Co 2p 1/2 , and two satellite peaks. 39 Two peaks with binding energies centered at 778.5 and 794.9 eV are attributed to Co 3+ , and the two peaks centered at 781.2 and 798.1 eV are assigned to Co 2+ . Two satellite peaks are located at 787.6 and 800.1 eV, respectively.…”

Section: Resultsmentioning

confidence: 98%

Anchoring polysulfides via a CoS₂/NC@1T MoS₂ modified separator for high-performance lithium–sulfur batteries

Liu

Jin

et al. 2023

Inorg. Chem. Front.

View full text Add to dashboard Cite

show abstract

“…Besides, Gao et al designed a freestanding 3D porous-carbon-film-embedded CoFe alloy nanoparticle. [193] They demonstrated that CoFe alloys worked as efficient catalyst for fast polysulfide conversion, enabling Li-S batteries with an enhanced capacity of 836 mAh g −1 at 0.2 C with a capacity retention rate of 94.5% after 100 cycles at a low temperature of −20 °C.…”

Section: Alloysmentioning

confidence: 99%

Sulfur Reduction Reaction in Lithium–Sulfur Batteries: Mechanisms, Catalysts, and Characterization

Zhou

Danilov

Qiao

et al. 2022

Advanced Energy Materials

119

View full text Add to dashboard Cite

of lithium-ion batteries on a large scale. Therefore, the development of rechargeable batteries with high energy density and reliability would be a priority. One of the most promising candidates is lithiumsulfur (Li-S) batteries, which have great potential for addressing these issues. [5][6][7] The conversion reaction based on the reduction of sulfur to lithium sulfides (Li 2 S) yields a high theoretical capacity of 1675 mAh g −1 (S 8 + 16 Li = 8 Li 2 S). Such a capacity is significantly higher than that of insertion cathode materials such as LiCoO 2 and LiFePO 4 , which deliver capacities below 200 mAh g −1 . The 16-electron electrochemical charge transfer reaction with a working voltage of about 2.2 V allows a specific energy density of 2600 Wh kg −1 for Li-S batteries. With optimal configuration, a practical energy density of 500-600 Wh kg −1 would be achievable when considering additional battery components. [8] Moreover, sulfur possesses the merits of abundant resources, safety, and environmental friendliness. The breakthrough in Li-S batteries will promote the development and application of renewable energy.Despite the great potential for replacing lithium-ion batteries, Li-S batteries still face several critical problems. [9] The principal one is the sluggish conversion kinetics of the sulfur reduction reaction (SRR) during discharging due to the low conductivity of sulfur species and complicated 16-electron conversion Lithium-sulfur batteries are one of the most promising alternatives for advanced battery systems due to the merits of extraordinary theoretical specific energy density, abundant resources, environmental friendliness, and high safety. However, the sluggish sulfur reduction reaction (SRR) kinetics results in poor sulfur utilization, which seriously hampers the electrochemical performance of Li-S batteries. It is critical to reveal the underlying reaction mechanisms and accelerate the SRR kinetics. Herein, the critical issues of SRR in Li-S batteries are reviewed. The conversion mechanisms and reaction pathways of sulfur reduction are initially introduced to give an overview of the SRR. Subsequently, recent advances in catalyst materials that can accelerate the SRR kinetics are summarized in detail, including carbon, metal compounds, metals, and single atoms. Besides, various characterization approaches for SRR are discussed, which can be divided into three categories: electrochemical measurements, spectroscopic techniques, and theoretical calculations. Finally, the conclusion and outlook part gives a summary and proposes several key points for future investigations on the mechanisms of the SRR and catalyst activities. This review can provide cutting-edge insights into the SRR in Li-S batteries.

show abstract

Low-temperature Li–S battery enabled by CoFe bimetallic catalysts

Abstract: Lithium-sulfur (Li-S) batteries are considered to be a promising energy storage device. To ensure practical applications at natural environment, Li-S batteries must be capable of performing normally at low temperature....

Cited by 50 publications

References 70 publications

Ion Transport Kinetics in Low‐Temperature Lithium Metal Batteries

Ion Transport Kinetics in Low‐Temperature Lithium Metal Batteries

Anchoring polysulfides via a CoS₂/NC@1T MoS₂ modified separator for high-performance lithium–sulfur batteries

Sulfur Reduction Reaction in Lithium–Sulfur Batteries: Mechanisms, Catalysts, and Characterization

Contact Info

Product

Resources

About

Low-temperature Li–S battery enabled by CoFe bimetallic catalysts

Abstract: Lithium-sulfur (Li-S) batteries are considered to be a promising energy storage device. To ensure practical applications at natural environment, Li-S batteries must be capable of performing normally at low temperature....

Cited by 50 publications

References 70 publications

Ion Transport Kinetics in Low‐Temperature Lithium Metal Batteries

Ion Transport Kinetics in Low‐Temperature Lithium Metal Batteries

Anchoring polysulfides via a CoS2/NC@1T MoS2 modified separator for high-performance lithium–sulfur batteries

Sulfur Reduction Reaction in Lithium–Sulfur Batteries: Mechanisms, Catalysts, and Characterization

Contact Info

Product

Resources

About

Anchoring polysulfides via a CoS₂/NC@1T MoS₂ modified separator for high-performance lithium–sulfur batteries