An electrolyte additive for thermal shutdown protection of Li-ion batteries

Xia, Lan; Wang, Dongdong; Cao, Yuliang; Ai, Xinping

doi:10.1016/j.elecom.2012.09.038

Cited by 47 publications

(34 citation statements)

References 9 publications

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“…First, it is very challenging to develop an electrolyte that can show excellent performances in terms of all properties. Among these studies, safety enhancement for liquid electrolytes, [13][14][15][16][17][18][19][20][21] ionic conductivity improvement for solid polymeric electrolytes, balance between mechanical and ionic conductivity properties for gel electrolytes, [46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62] single-ion conduction, and improvement of the Li + transference number for solid or gel electrolytes [63][64][65][66][67][68][69][70][71][72][73][74] are the most popular topics. Among these studies, safety enhancement for liquid electrolytes, [13][14][15][16][17][18][19][20]…”

Section: Electrolyte Propertiesmentioning

confidence: 99%

Development of Electrolytes towards Achieving Safe and High‐Performance Energy‐Storage Devices: A Review

2014

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Increasing interest in flexible/wearable electronics, clean energy, electrical vehicles, and so forth is calling for advanced energy‐storage devices, such as high‐performance lithium‐ion batteries (LIBs), which can not only store energy efficiently and safely, but also possess additional properties, such as good mechanical properties to bear deformations or even to be used as structural components. These expectations first indicate the directions, but also raise new challenges for the advancement of energy materials. As one of the critical components in LIBs, the electrolyte connecting the two electrodes is vital for achieving the desired performances in batteries. In this Review, the developments of various liquid electrolytes (organic, ionic liquid, and aqueous electrolytes), solid electrolytes (solid polymer and inorganic solid), as well as gel electrolytes is briefly summarized and discussed. For each type of electrolyte, the challenging issues and possible solutions are discussed. In particular, safety, ionic conductivity, and contact/interface issues are emphasized. Finally, from a composite point of view, strategies for the development of high‐performance electrolytes with all‐round properties are proposed.

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Section: Electrolyte Propertiesmentioning

confidence: 99%

Development of Electrolytes towards Achieving Safe and High‐Performance Energy‐Storage Devices: A Review

2014

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“…The previous research [1] reported that by adding the fluorine functional group of malemaide-based additive into the electrolyte elucidated the ideal SEI formation, gave its excellent electrochemical durability especially at cycled test and high temperature applied. Other research, moreover, also reported that the electrolyte additives can intensify the safety of the battery cell [2], [3].…”

Section: Introductionmentioning

confidence: 97%

Electrochemical analysis of electrolyte additive effect on ionic diffusion for high-performance lithium ion battery

Hamidah

Nugroho

Wang

2015

Ionics

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Lithium ion batteries have gained increasing attention in the last two decades. Perfoming electrolyte additive into lithium ion battery could enhance the baterry performance. However several studies on electrolyte additive only show the experimental data. The behavior of battery kinetic inside the battery and the ionic diffusion during operation was not analyzed. This study will investigate the effect of electrolyte additive on ionic diffusion of battery based on electrochemical model. The role of the electrolyte is to provide an ionic conduction path between the anode and the cathode. This study elucidates the improvement of the cycleability by performing the electrolyte containing 0.1 wt % of Flouro-ophenylenedimaleimide (F-MI) based additive compared to the electrolyte with 0.1 wt % N,N'-o-phenylenedimaleimide (O-MI) and without an additive shown by effective constant phase elements (CPE) coefficient of impedance spectra on electrochemical impedance spectroscopy (EIS). The result elucidates that many amount of lithium ion remains on SEI layer of the mesocarbon microbeads (MCMB) half cell with F-MI additive, indicating that ion move easily because of high diffusion. The simulation result elucidated the agreement with the experimental data, the diffusion of the MCMB half-cell with F-MI additive is highest compared to MCMB half-cell with O-MI and without additive, that is emphasized with result on the EIS test.

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“…Extensive studies have been applied to avoid such thermal runaway. For example, thermal switches have been reported based on thermoresponsive polymeric materials, and a bifunctional separator was used for early detection of internal shorting . On the other hand, fundamental understanding is still needed to unveil this complicated electrochemical‐thermal‐electrical coupled process.…”

Section: Introductionmentioning

confidence: 99%

New Insights into Nail Penetration of Li‐Ion Batteries: Effects of Heterogeneous Contact Resistance

Chen

Qin

Shi

et al. 2019

Batteries & Supercaps

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Nail penetration is one important mode of catastrophic failure in Li-ion batteries, and the contact resistance between a nail and electrodes is a dominant factor for heat generation. Surprisingly, previous studies always assume uniform resistance and there is no experimental measurement of contact resistance, to the best of our knowledge. In this report, the contact resistance is determined experimentally. The contact resistance between a nail (diameter = 1.25 mm) and a Cu/graphite electrode is 2.5 � 1.5 Ω, and a nail and Al/LiCoO 2 is 20.3 � 12.4 Ω. These values are in the same order of the geometric mean of the resistance between nail/metal substrate and nail/active materials, suggesting a random connection network among the nail, the metal substrate, and active materials. It is found that the resistance can vary as large as 1-2 orders of magnitude, and such fluctuation is critical to the magnitude of temperature rise during nail penetration, which can increase temperature rise bỹ 93 % compared to homogeneous contact resistance. The results show that the heterogeneity in contact resistance should be considered. Based on such new understanding, a simple approach to reduce the temperature increase during nail penetration was proposed by having the anode as the outermost layer.

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An electrolyte additive for thermal shutdown protection of Li-ion batteries

Cited by 47 publications

References 9 publications

Development of Electrolytes towards Achieving Safe and High‐Performance Energy‐Storage Devices: A Review

Development of Electrolytes towards Achieving Safe and High‐Performance Energy‐Storage Devices: A Review

Electrochemical analysis of electrolyte additive effect on ionic diffusion for high-performance lithium ion battery

New Insights into Nail Penetration of Li‐Ion Batteries: Effects of Heterogeneous Contact Resistance

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