Butyl acrylate (BA) and ethylene carbonate (EC) electrolyte additives for low-temperature performance of lithium ion batteries

Zhu, Cheng; Lv, Weixia; Chen, Jun; Ou, Caixia; Zhang, Qian; Fu, Haikuo; Wang, Hua; Wu, Lijue; Zhong, Shengwen

doi:10.1016/j.jpowsour.2020.228697

Cited by 26 publications

(10 citation statements)

References 37 publications

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“…Linear carboxylate solvents (e.g., MA, ethyl acetate [EA], MP, and EB) are widely employed in low-temperature electrolyte for their relatively low viscosities and low melting points. [138][139][140] For example, methyl formate (MF) is blended with EC to formulate a electrolyte (1 M LiAsF 6 in MF/EC, 3:1 by volume) with a high conductivity of 8.4 mS cm −1 at −40°C. [141] The graphite//Li cells with above electrolyte, nevertheless, still present unsatisfied performance since poor compatibility between graphite and carboxylates.…”

Section: Carboxylate Solventmentioning

confidence: 99%

Challenges and strategies of formulating low‐temperature electrolytes in lithium‐ion batteries

Qin

Zeng

Cheng

et al. 2023

Interdisciplinary Materials

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Lithium-ion batteries (LIBs) have monopolized energy storage markets in modern society. The reliable operation of LIBs at cold condition (<0°C), nevertheless, is inevitably hampered by the sluggish kinetics and parasite reactions, which falls behind the increasing demands for portable electronics and electric vehicles. The electrolyte controls both Li + transport and interfacial reaction, dictating the low-temperature performance substantially. Therefore, the rational formulation of electrolytes is significant for realizing superior lowtemperature performance and broadening application niches of LIBs. Herein, we first discuss the kinetic limitations of low-temperature LIBs, highlighting the importance of electrolyte structure and interfacial chemistry. Then, the advancements for formulating subzero-temperature electrolyte are summarized with in-depth discussions about electrolyte formulation, solvation structure, interfacial chemistry, and low-temperature behaviors. Moreover, some opportunities for lithium metal batteries and the corresponding lowtemperature electrolyte are covered. Finally, the major challenges and future perspectives are outlined for low-temperature LIBs.

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Section: Carboxylate Solventmentioning

confidence: 99%

Challenges and strategies of formulating low‐temperature electrolytes in lithium‐ion batteries

Qin

Zeng

Cheng

et al. 2023

Interdisciplinary Materials

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“…However, the film‐forming ability of LiBF 4 is so poor that the battery capacity decayed rapidly at room temperature. Accordingly, by mixing LiBF 4 and LiPF 6 , Zhong 40 developed an electrolyte consisting of 1.0 M LiPF 6 in DMC/EMC (3:5, by mass) + 16% BA + 10% EC + 0.7 M LiPF 6 + 0.3 M LiBF 4 , which owns a conductivity of 0.75 mS cm −1 at −40°C. The capacity of the NCM811/Li half‐battery in the above electrolyte was 64% of that at room temperature, and the battery exhibited good cycling stability.…”

Section: Low‐temperature Electrolytementioning

confidence: 99%

Toward wide‐temperature electrolyte for lithium–ion batteries

Chen

et al. 2022

Battery Energy

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Lithium-ion battery (LIB) suffers from safety risks and narrow operational temperature range in despite the rapid drop in cost over the past decade.Subjected to the limited materials choices, it is not feasible to modify the cathode and anode to improve the battery's wide-temperature performance, hence, optimizing the design of the electrolyte system has currently become the most feasible and economical way to broaden the operating temperature range of LIBs. Considering urgent demands for wide-temperature LIBs and achieved enormously excited results about wide-temperature electrolytes in recent years, a review about this topic and scope is timely and important at present. In this study, we first examine the physicochemical properties of current commercial electrolytes with emphasis on the variations of key parameters along with the temperature.After that, we give comprehensive overview of the employed strategies for separately improving the electrochemical performance of electrolytes toward low-temperature, high-temperature, and wide-temperature applications. Furthermore, recent progress of ionic liquids and solidstate electrolytes that are capable of working within wide temperature range is also summarized. We hope this review will provide deep understanding of the design principles of wide-temperature electrolyte, and inspire more endeavors to conquer the practicability issue of LIBs in extreme environments.

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“…If the temperature is too low, less capacity can be discharged, and the charge will probably lead to the deposition of Li metal on the anode surface and form Li dendrite, further pierce the separator and result in safety issues. [19,20] Whereas, when the temperatures of the batteries are over 45°C, the side reactions in the batteries will become more active. Before the high temperature test, the consistency of parallel samples is evaluated by discharging (0.2 C) the cells from 4.2 V to 3.0 V and checking the relationship between the OCV and the capacity.…”

Section: Performance Degradation Behaviors Of the Batteries During Himentioning

confidence: 99%

Performance Degradation of Lithium‐Ion Batteries with LiNi_0.33Co_0.33Mn_0.33O₂ Cathodes during Long‐Term, High‐Temperature Storage: Behaviors and Mechanism

Wang

Pang

et al. 2021

ChemElectroChem

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The behaviors and mechanism for the different performance degradation trends of 18650 cylindrical lithium-ion batteries (LIBs) with LiNi 0.33 Co 0.33 Mn 0.33 O 2 cathodes under long-term storage at a high temperature (HT) of 80°C are investigated to gain insight on the safe use of LIBs. It is indicated that the direct current resistance (DCR) increases sharply within 240 h and then slows down gradually, whereas the open-circuit voltage (OCV) and the recoverable capacity (RC) fading are relatively stable in the initial 240 h, but then speeds up from 240 h to 720 h. With the aid of analyses of the anode, cathode, and separator materials in batteries stored at 80°C for 0 h, 240 h, 480 h, and 720 h, the mechanism of the performance degradation of batteries is elucidated. It is pointed out that the DCR rise is mainly caused by the anode materials peeling off from the copper foil, as is the subsequent interface resistance increase. The RC fading is attributed to the partial break of the cathode structure, owing to the dissolution of transition metal ions (Ni 2 + , Co 3 + , and Mn 4 +), and the dissolution becomes more severe as the time extends. In addition, the separator suffers a combination of stretching (machine direction), squeezing (anode side), oxidation (cathode side), and destruction, resulting in internal short circuit and sharp OCV drop, as well as the other potential safety risks of LIBs. These results are valuable to establish an accelerated testing method to evaluate batteries in a short time range to advance the safe use of LIBs under high-temperature storage.

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Butyl acrylate (BA) and ethylene carbonate (EC) electrolyte additives for low-temperature performance of lithium ion batteries

Cited by 26 publications

References 37 publications

Challenges and strategies of formulating low‐temperature electrolytes in lithium‐ion batteries

Challenges and strategies of formulating low‐temperature electrolytes in lithium‐ion batteries

Toward wide‐temperature electrolyte for lithium–ion batteries

Performance Degradation of Lithium‐Ion Batteries with LiNi_0.33Co_0.33Mn_0.33O₂ Cathodes during Long‐Term, High‐Temperature Storage: Behaviors and Mechanism

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Butyl acrylate (BA) and ethylene carbonate (EC) electrolyte additives for low-temperature performance of lithium ion batteries

Cited by 26 publications

References 37 publications

Challenges and strategies of formulating low‐temperature electrolytes in lithium‐ion batteries

Challenges and strategies of formulating low‐temperature electrolytes in lithium‐ion batteries

Toward wide‐temperature electrolyte for lithium–ion batteries

Performance Degradation of Lithium‐Ion Batteries with LiNi0.33Co0.33Mn0.33O2 Cathodes during Long‐Term, High‐Temperature Storage: Behaviors and Mechanism

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Performance Degradation of Lithium‐Ion Batteries with LiNi_0.33Co_0.33Mn_0.33O₂ Cathodes during Long‐Term, High‐Temperature Storage: Behaviors and Mechanism