All-temperature batteries enabled by fluorinated electrolytes with non-polar solvents

Fan, Xiulin; Ji, Xiao; Chen, Long; Chen, Ji; Deng, Tao; Han, Fudong; Yue, Jie; Piao, Nan; Wang, Ruixing; Zhou, Xiuquan; Xiao, Xuezhang; Chen, Lixin; Wang, Chunsheng

doi:10.1038/s41560-019-0474-3

Cited by 615 publications

(648 citation statements)

References 61 publications

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“…Though the feasibility of LTZBs has been demonstrated at -20°C 23,24 , the ultimate low temperature for aqueous Zn batteries is still unknown and unreached. The batteries based on the organic electrolyte with low-freezing-point solvent, such as liquefied CO 2 /fluoromethane gas 25 , ethyl acetate 26 , and perfluorinated ether 27 , can easily reach the ultralow operation temperature of -60, -70 and -85°C, respectively. However, the solvent of aqueous Zn electrolyte is fixed as water, which has a high freezing point of 0°C at standard atmospheric pressure 28 .…”

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confidence: 99%

Modulating electrolyte structure for ultralow temperature aqueous zinc batteries

et al. 2020

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Rechargeable aqueous batteries are an up-and-coming system for potential large-scale energy storage due to their high safety and low cost. However, the freeze of aqueous electrolyte limits the low-temperature operation of such batteries. Here, we report the breakage of original hydrogen-bond network in ZnCl2 solution by modulating electrolyte structure, and thus suppressing the freeze of water and depressing the solid-liquid transition temperature of the aqueous electrolyte from 0 to –114 °C. This ZnCl2-based low-temperature electrolyte renders polyaniline||Zn batteries available to operate in an ultra-wide temperature range from –90 to +60 °C, which covers the earth surface temperature in record. Such polyaniline||Zn batteries are robust at –70 °C (84.9 mA h g−1) and stable during over 2000 cycles with ~100% capacity retention. This work significantly provides an effective strategy to propel low-temperature aqueous batteries via tuning the electrolyte structure and widens the application range of temperature adaptation of aqueous batteries.

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confidence: 99%

Modulating electrolyte structure for ultralow temperature aqueous zinc batteries

et al. 2020

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Section: Low-temperature Lithium-sulfur Batteriesmentioning

confidence: 99%

Designing Advanced Lithium‐Based Batteries for Low‐Temperature Conditions

Gupta

Manthiram

2020

Advanced Energy Materials

249

193

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requirements over the time of use, including variable rates, and pressures, and often most critical, temperatures. [2-4] The required low-temperature capabilities, shown in Figure 1, can present a critical roadblock toward the use of lithium-ion batteries. Commercial state-of-the-art batteries see noticeable drops in capacity retention and rate capability below 0 °C, and will rarely be recommended for use below −20 °C. [5] This limitation is defined by the kinetics of ion-transfer in solution; at low-temperatures, every stage of charge-transfer, from ion diffusion within the electrolyte and electrode materials to charge-transfer across the electrode-electrolyte interfaces, is significantly impeded. Low-temperature conditions, in which the environment itself has relatively limited thermal kinetic energy available, can present significant energetic hurdles within the chemical reaction pathway normally followed during charge and discharge at room temperature. In applications with recurring exposure to low-temperature conditions, particularly electric-vehicles and space applications, there is currently heavy reliance on secondary heating solutions coupled with thermal management systems in order to ensure consistent power delivery during operation. [6] Thermal management solutions can generally be classified as either internal, with thermal management elements integrated directly within the cell itself, or external, where thermal management solutions are applied to an entire pack or module. Internal solutions, including cells with integrated AC self-heating [7] or other internal self-heating structures, [8] are generally not feasible or practical to integrate within every cell used in an application given the added weight and complexity of such systems. [9] More commonly, external heating solutions are applied including thermal heating jackets or heating elements, warm-air heating, or liquid heat-transfer approaches. While these strategies may be more feasible to implement in practice than internal solutions, they also are accompanied by added weight, greater complexity, and reduced overall energy efficiency. [7,9] In space applications, there is often a reliance on radioisotope thermal generators (RTGs), which pair a thermoelectric generator with a decaying radioactive material to ensure consistent and reliable power generation energy. The waste heat from such systems is utilized to heat secondary systems, such Energy-dense rechargeable batteries have enabled a multitude of applications in recent years. Moving forward, they are expected to see increasing deployment in performance-critical areas such as electric vehicles, grid storage, space, defense, and subsea operations. While this at first glance spells great promise for conventional lithium-ion batteries, all of these usecases, unfortunately, share periodic and recurring exposures to extremely low-temperature conditions, a performance constraint where the lithiumion chemistry can fail to perform optimally. Next-generation chemistries employing alternative anodes...

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“…Researchers developed LiNi 0.8 Co 0.15 Al 0.05 O 2 j j Li battery with wide operating temperature by using fluorinated electrolytes, achieving 56 % of its room temperature capacity under À 85°C. [11] In our previous work, we developed a favorable electrode consisting of thin graphite sheets with through-holes and carbon nanotube, which can obtain 325 mAh g À 1 at 8 C under room temperature and maintain 180 mAh g À 1 at À 40°C (0.1 C, 48.4 % of its room temperature capacity), combined with 1,3-Dioxlane (DIOX)based electrolyte. [4] Compared with graphite, LTO is a desired material with a stable and higher voltage platform (ca.…”

Section: Introductionmentioning

confidence: 99%

Excellent Rate and Low Temperature Performance of Lithium‐Ion Batteries based on Binder‐Free Li₄Ti₅O₁₂ Electrode

Yuan

et al. 2020

ChemElectroChem

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Achieving lithium‐ion batteries (LIBs) with ultrahigh rate at ambient‐temperature and excellent low temperature‐tolerant performances is still a tremendous challenge. In this paper, we design a binder‐free Li4Ti5O12 (LTO) electrode to achieve an excellent rate performance (∼75 % of its theoretical capacity at 200 C), in which, aligned CNT nanosheets were used to load LTO nanosheets decorated with silver nanocrystals. With combination of 1,3‐Dioxlane‐based electrolyte, there is nearly no initial voltage drop happen, and the capacity can be greater than 140 mAh g−1 (∼85 % of its specific capacity at room temperature) at −60 °C and 0.2 C. This study provides a practical guidance of the design of LIBs with outstanding rate performances and low temperature resistance.

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All-temperature batteries enabled by fluorinated electrolytes with non-polar solvents

Cited by 615 publications

References 61 publications

Modulating electrolyte structure for ultralow temperature aqueous zinc batteries

Modulating electrolyte structure for ultralow temperature aqueous zinc batteries

Designing Advanced Lithium‐Based Batteries for Low‐Temperature Conditions

Excellent Rate and Low Temperature Performance of Lithium‐Ion Batteries based on Binder‐Free Li₄Ti₅O₁₂ Electrode

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All-temperature batteries enabled by fluorinated electrolytes with non-polar solvents

Cited by 615 publications

References 61 publications

Modulating electrolyte structure for ultralow temperature aqueous zinc batteries

Modulating electrolyte structure for ultralow temperature aqueous zinc batteries

Designing Advanced Lithium‐Based Batteries for Low‐Temperature Conditions

Excellent Rate and Low Temperature Performance of Lithium‐Ion Batteries based on Binder‐Free Li4Ti5O12 Electrode

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Excellent Rate and Low Temperature Performance of Lithium‐Ion Batteries based on Binder‐Free Li₄Ti₅O₁₂ Electrode