Safe and fast-charging Li-ion battery with long shelf life for power applications

Zaghib, Karim; Dontigny, Martin; Guerfi, Abdelbast; Charest, Patrick; Rodrigues, Isadora Reis; Mauger, A.; Julien, C.

doi:10.1016/j.jpowsour.2010.11.093

Cited by 322 publications

(191 citation statements)

References 24 publications

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“…In addition, the lower environmental impact and improved safety of these new products have clearly demonstrated their advantages as alternatives to fossil fuels. 1,2 Since understanding structural properties of batteries is of considerable significance to battery designers in order to improve battery systems, many models have appeared in the literature over the years. 3,4 A reaction-zone model based on fast electrode kinetics and neglecting the concentration gradients was first introduced by Newman 5 to optimize the electrode thickness and porosity.…”

mentioning

confidence: 99%

A Study on the Effect of Porosity and Particles Size Distribution on Li-Ion Battery Performance

Taleghani

Marcos

Zaghib

et al. 2017

J. Electrochem. Soc.

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A pseudo two-dimensional model (P2D) is presented that describes the effect of the structural properties of the positive electrode on Li-ion cell performance during discharge. The validation of the mono-modal model was done by using Doyle's experiment and results [C.M. Doyle, University of California, Berkeley (1995)]. A large increase or decrease in the porosity beyond a specific value led to a sharp change in the cell voltage curve and lower cell capacities. The maximum specific energy was obtained in the porosity range of 0.55, while the specific power still had a high value. Furthermore, different particle size distribution models, including mono-modal, bi-modal and 3-particle models, were compared to each other. The mono-modal model was the ideal state with the lowest total polarization. The bi-modal and 3-particle models approached this ideal state when the volume fraction of the smallest particles in their structures increased. This structural arrangement in these models led to more uniform local current density distribution profiles resulting in a greater decrease in cell polarization. Different discharge current densities were applied to different particle size distribution models, and the results showed that the particle size distribution has a greater effect at higher discharge current densities. Lithium-ion batteries play a significant role in the automotive industry, large-scale utility storage and other advanced technologies due to their beneficial features such as higher energy and power densities along with cycle durability. In addition, the lower environmental impact and improved safety of these new products have clearly demonstrated their advantages as alternatives to fossil fuels. 1,2Since understanding structural properties of batteries is of considerable significance to battery designers in order to improve battery systems, many models have appeared in the literature over the years. 3,4 A reaction-zone model based on fast electrode kinetics and neglecting the concentration gradients was first introduced by Newman 5 to optimize the electrode thickness and porosity. Ramadesigan et al. 6 used a single-electrode model to find the optimal porosity by neglecting the solid-phase intercalation mechanism and considering only the ohmic limitation. The optimization of design parameters, including the thickness and porosity of both electrodes, was done by De et al. 7 to maximize the specific energy delivered from the battery: they used a valid reformulated model to facilitate multi-parameter optimization in which the micro structural effects were neglected. Dai and Srinivasan 8 described a model based on graded electrode porosity to expand the energy density of the battery.Until recently, most lithium-ion battery models used a mono-modal particle size distribution for an intercalation electrode, while it is obvious that a real electrode consists of particles with different sizes. Few studies have addressed the effect of particle size on the intercalation electrode performance. Von Sacken et al.9 used ...

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mentioning

confidence: 99%

A Study on the Effect of Porosity and Particles Size Distribution on Li-Ion Battery Performance

Taleghani

Marcos

Zaghib

et al. 2017

J. Electrochem. Soc.

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“…Owing to the inherent instability of lithium metal deposition, research shifted to lithium-ion-based batteries during the 1980s (refs 1,2,4). Current commercial lithium-ion batteries using graphite as a negative electrode exhibit an approximately tenfold lower specific charge capacity but safer operation compared with lithium metal electrodes; however, despite this development, lithium dendrite formation has not been entirely inhibited in graphite anodes either, especially when cycled at high current densities, in overcharge conditions, or at low temperatures 8,[12][13][14][15] .…”

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confidence: 99%

Improving battery safety by early detection of internal shorting with a bifunctional separator

et al. 2014

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Lithium-based rechargeable batteries have been widely used in portable electronics and show great promise for emerging applications in transportation and wind-solar-grid energy storage, although their safety remains a practical concern. Failures in the form of fire and explosion can be initiated by internal short circuits associated with lithium dendrite formation during cycling. Here we report a new strategy for improving safety by designing a smart battery that allows internal battery health to be monitored in situ. Specifically, we achieve early detection of lithium dendrites inside batteries through a bifunctional separator, which offers a third sensing terminal in addition to the cathode and anode. The sensing terminal provides unique signals in the form of a pronounced voltage change, indicating imminent penetration of dendrites through the separator. This detection mechanism is highly sensitive, accurate and activated well in advance of shorting and can be applied to many types of batteries for improved safety.

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“…The electrodes were rinsed with dimethyl carbonate (DMC) three times to remove residual EC and LiPF 6 and evacuated overnight prior to surface analysis. X-ray photoelectron spectroscopy (XPS) was acquired with a Thermo K-alpha system using Al Kα radiation (hυ = 1486.6 eV) under ultra high vacuum and a measured spot size of 400 μm.…”

Section: Methodsmentioning

confidence: 99%

Development of Lithium Dimethyl Phosphate as an Electrolyte Additive for Lithium Ion Batteries

Milien

Tottempudi

Son

et al. 2016

J. Electrochem. Soc.

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The novel electrolyte additive lithium dimethyl phosphate (LiDMP) has been synthesized and characterized. Incorporation of LiDMP (0.1% wt) into LiPF 6 in ethylene carbonate (EC) / ethyl methyl carbonate (EMC) (3:7 wt) results in improved rate performance and reduced impedance for graphite / LiNi 1/3 Mn 1/3 Co 1/3 O 2 cells. Ex-situ surface analysis of the electrodes suggests that incorporation of LiDMP results in a modification of the solid electrolyte interphase (SEI) on the anode. A decrease in the concentration of lithium alkyl carbonates and an increase in the concentration of lithium fluoro phosphates are observed. The change in the anode SEI structure is responsible for the increased rate performance and decreased cell impedance. Lithium ion batteries (LIB) are currently the preferred source of power for consumer electronics such as mobile phones, computers, and cameras and are of interest for large-scale high-powered battery markets including aerospace, military, and electric vehicles. The reaction of non-aqueous electrolytes on the surface of the anode during the first few charging cycles results in the generation of a solid electrolyte interphase (SEI) which is critical to the performance of LIB.1 While the structure and function of the anode SEI is still poorly understood, lithium ion intercalation through the SEI and into the anode is one of the largest limitations for high rate performance. 2-5Electrolyte additives have been used to modify the structure of the SEI and improve the performance of LIB via decreasing the irreversible capacity during formation, lowering SEI resistance, or stabilizing cells against extreme conditions such as high temperature and high rate cycling.1,6-8 Vinylene carbonate (VC) is one of the most frequently investigated additives and has been used to generate a more stable SEI on graphite, but unfortunately the films are typically more resistive.9 Improving the kinetics of lithium ion batteries has been investigated via incorporation of alternative co-solvents to improve electrolyte conductivity 10 or incorporation of electrolyte additives, such as propane sultone (PS), to reduce the impedance of the SEI.11 Organophosphorus additives such as trimethyl phospshate and dimethylmethyl phosphonate have also been investigated as novel flame retarding additives.12-14 Recently, a novel phosphorus additive, lithium difluoro phosphate (F 2 PO 2 Li), has been reported to improve the interfacial kinetics of the anode SEI. 15 In this manuscript, we report on the development of a structurally related novel organophosphorous additive, lithium dimethyl phosphate (LiDMP), which has been found to function as an anode film-forming additive, which decreases cell impedance. ExperimentalMaterials.-All of the materials for the synthesis of LiDMP were purchased from Sigma Aldrich or Acros and used without further purification. Battery-grade ethylene carbonate (EC), ethyl methyl carbonate (EMC), and lithium hexafluorophosphate (LiPF 6 ) were provided by BASF, Germany, and used as received. LiDMP was...

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Safe and fast-charging Li-ion battery with long shelf life for power applications

Cited by 322 publications

References 24 publications

A Study on the Effect of Porosity and Particles Size Distribution on Li-Ion Battery Performance

A Study on the Effect of Porosity and Particles Size Distribution on Li-Ion Battery Performance

Improving battery safety by early detection of internal shorting with a bifunctional separator

Development of Lithium Dimethyl Phosphate as an Electrolyte Additive for Lithium Ion Batteries

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