Nonflammable organic electrolytes for high-safety lithium-ion batteries

Deng, Kuirong; Zeng, Qingguang; Wang, Da; Liu, Zheng; Wang, Guangxia; Qiu, Zhenping; Zhang, Yangfan; Xiao, Min; Ye, Meng

doi:10.1016/j.ensm.2020.07.018

Cited by 187 publications

(115 citation statements)

References 206 publications

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“…This will result in reduced battery capacity. At present, some electrolyte lithium additives have been added to the electrolyte to form a more stable SEI film [85][86][87].…”

Section: Aging At the Electrolytementioning

confidence: 99%

Lithium-Ion Battery Operation, Degradation, and Aging Mechanism in Electric Vehicles: An Overview

Guo

Pedersen

et al. 2021

Energies

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Understanding the aging mechanism for lithium-ion batteries (LiBs) is crucial for optimizing the battery operation in real-life applications. This article gives a systematic description of the LiBs aging in real-life electric vehicle (EV) applications. First, the characteristics of the common EVs and the lithium-ion chemistries used in these applications are described. The battery operation in EVs is then classified into three modes: charging, standby, and driving, which are subsequently described. Finally, the aging behavior of LiBs in the actual charging, standby, and driving modes are reviewed, and the influence of different working conditions are considered. The degradation mechanisms of cathode, electrolyte, and anode during those processes are also discussed. Thus, a systematic analysis of the aging mechanisms of LiBs in real-life EV applications is achieved, providing practical guidance, methods to prolong the battery life for users, battery designers, vehicle manufacturers, and material recovery companies.

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“…This will result in reduced battery capacity. At present, some electrolyte lithium additives have been added to the electrolyte to form a more stable SEI film [85][86][87].…”

Section: Aging At the Electrolytementioning

confidence: 99%

Lithium-Ion Battery Operation, Degradation, and Aging Mechanism in Electric Vehicles: An Overview

Guo

Pedersen

et al. 2021

Energies

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“…[ 22 ] Moreover, the characterization parameters of the electrolyte flammability limit (e.g., self‐extinguishing time (SET), limiting oxygen index, and flash point (FP)), and the flammability tests of full batteries have been developed for the better investigation of the electrolyte flammability features. [ 23 ]…”

Section: Introductionmentioning

confidence: 99%

“…[22] Moreover, the characterization parameters of the electrolyte flammability limit (e.g., self-extinguishing time (SET), limiting oxygen index, and flash point (FP)), and the flammability tests of full batteries have been developed for the better investigation of the electrolyte flammability features. [23] In this review, we summarize recent advances of cutting-edge non-flammable liquid electrolytes, including non-flammable organic liquid electrolytes, aqueous electrolytes, and DES-based electrolytes, from the perspectives of fundamental properties, flame-retardant mechanisms, and their applications in alkali metal-based batteries. The interfacial compatibility between the electrolytes and electrodes, especially the high-energy alkaline metal anodes, will be emphasized.…”

Section: Introductionmentioning

confidence: 99%

Non‐Flammable Liquid and Quasi‐Solid Electrolytes toward Highly‐Safe Alkali Metal‐Based Batteries

Jaumaux

Shanmukaraj

et al. 2020

Adv Funct Materials

172

133

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Rechargeable alkali metal (i.e., lithium, sodium, potassium)‐based batteries are considered as vital energy storage technologies in modern society. However, the traditional liquid electrolytes applied in alkali metal‐based batteries mainly consist of thermally unstable salts and highly flammable organic solvents, which trigger numerous accidents related to fire, explosion, and leakage of toxic chemicals. Therefore, exploring non‐flammable electrolytes is of paramount importance for achieving safe batteries. Although replacing traditional liquid electrolytes with all‐solid‐state electrolytes is the ultimate way to solve the above safety issues, developing non‐flammable liquid electrolytes can more directly fulfill the current needs considering the low ionic conductivities and inferior interfacial properties of existing all‐solid‐state electrolytes. Moreover, the electrolyte leakage concern can be further resolved by gelling non‐flammable liquid electrolytes to obtain quasi‐solid electrolytes. Herein, a comprehensive review of the latest progress in emerging non‐flammable liquid electrolytes, including non‐flammable organic liquid electrolytes, aqueous electrolytes, and deep eutectic solvent‐based electrolytes is provided, and systematically introduce their flame‐retardant mechanisms and electrochemical behaviors in alkali metal‐based batteries. Then, the gelation techniques for preparing quasi‐solid electrolytes are also summarized. Finally, the remaining challenges and future perspectives are presented. It is anticipated that this review will promote a safety improvement of alkali metal‐based batteries.

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“…The development of portable electronic devices urgently requires lithium-ion batteries (LIBs) with a high capacity and long lifespan [ 1 , 2 , 3 ]. Currently, extensive efforts have been devoted to developing alternative anode materials, e.g., metal oxide, alloys and group IVA elements, to boost the capacity of LIBs [ 1 , 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Dealloying-Derived Nanoporous Cu6Sn5 Alloy as Stable Anode Materials for Lithium-Ion Batteries

et al. 2021

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The volume expansion during Li ion insertion/extraction remains an obstacle for the application of Sn-based anode in lithium ion-batteries. Herein, the nanoporous (np) Cu6Sn5 alloy and Cu6Sn5/Sn composite were applied as a lithium-ion battery anode. The as-dealloyed np-Cu6Sn5 has an ultrafine ligament size of 40 nm and a high BET-specific area of 15.9 m2 g−1. The anode shows an initial discharge capacity as high as 1200 mA h g−1, and it remains a capacity of higher than 600 mA h g−1 for the initial five cycles at 0.1 A g−1. After 100 cycles, the anode maintains a stable capacity higher than 200 mA h g−1 for at least 350 cycles, with outstanding Coulombic efficiency. The ex situ XRD patterns reveal the reverse phase transformation between Cu6Sn5 and Li2CuSn. The Cu6Sn5/Sn composite presents a similar cycling performance with a slightly inferior rate performance compared to np-Cu6Sn5. The study demonstrates that dealloyed nanoporous Cu6Sn5 alloy could be a promising candidate for lithium-ion batteries.

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Nonflammable organic electrolytes for high-safety lithium-ion batteries

Cited by 187 publications

References 206 publications

Lithium-Ion Battery Operation, Degradation, and Aging Mechanism in Electric Vehicles: An Overview

Lithium-Ion Battery Operation, Degradation, and Aging Mechanism in Electric Vehicles: An Overview

Non‐Flammable Liquid and Quasi‐Solid Electrolytes toward Highly‐Safe Alkali Metal‐Based Batteries

Dealloying-Derived Nanoporous Cu6Sn5 Alloy as Stable Anode Materials for Lithium-Ion Batteries

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