Incremental Capacity Analysis and Close-to-Equilibrium OCV Measurements to Quantify Capacity Fade in Commercial Rechargeable Lithium Batteries

Dubarry, Matthieu; Svoboda, V.; Hwu, Ruey; Liaw, Bor Yann

doi:10.1149/1.2221767

Cited by 346 publications

(248 citation statements)

References 17 publications

Supporting

Mentioning

241

Contrasting

Unclassified

Order By: Relevance

“…To conduct degradation diagnosis using incremental capacity (IC) analysis [27], ad-hoc data for both electrodes' materials was needed. A sixteenth cell was slowly discharged to 3.0 V and carefully disassembled in an Argon-filled glove box.…”

Section: Half-cell Preparation and Testingmentioning

confidence: 99%

“…There are two aspects to this question: first, are all cells degrading at the same pace; second, are all the cells degrading the same way. To answer this question, cells were cycled for 1000 cycles under identical conditions and analyzed on a capacity and resistance basis but also by non-invasive electrochemical voltage spectroscopies [26,27].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Intrinsic Variability in the Degradation of a Batch of Commercial 18650 Lithium-Ion Cells

2018

Self Cite

View full text Add to dashboard Cite

Abstract:The use of lithium batteries for power and energy-hungry applications has risen drastically in recent years. For such applications, it is necessary to connect the batteries in large assemblies of cells in series and parallel. With a large number of cells operating together, it is necessary to understand their intrinsic variabilities, not only at the initial stage but also upon aging. In this study, we studied a batch of commercial cells to address their initial cell-to-cell variations and also the variations induced by cycling. To do so, we not only tracked several metrics associated with cell performance, the maximum capacity, the resistance, and the rate capability but also the degradation mechanism via a non-invasive quantification of the loss of lithium inventory (LLI), the loss of active material (LAM) and the kinetic degradation on both electrodes. We found that, even with small initial cell-to-cell variations, significant variations will be observed upon aging because the cells degrade at a different pace. We also observed that these variations were not correlated with the initial variations.

show abstract

Section: Half-cell Preparation and Testingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Intrinsic Variability in the Degradation of a Batch of Commercial 18650 Lithium-Ion Cells

2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…As long as the cell is aged, the OCV and the available capacity decrease. From an electrochemical viewpoint, the reduction of the OCV is translated into a decrease of the available number of Li-ions [6], [15]. Reduction of the magnitude of the peaks in the IC curve and shifting to lower voltages represents a reduction of the capacity at a particular potential.…”

Section: Identification Of Degradation Modesmentioning

confidence: 99%

A SoH Diagnosis and Prognosis Method to Identify and Quantify Degradation Modes in Li-ion Batteries using the IC/DV technique

Pastor-Fernández¹,

Widanage²,

Chouchelamane³

et al. 2016

6th Hybrid and Electric Vehicles Conference (HEVC 2016)

View full text Add to dashboard Cite

Accurate State of Health (SoH) diagnosis and prognosis of Lithium-ion batteries (LIBs) may become an important estimate for the Battery Management System (BMS) if it can be acted upon to de-rate the demands placed on the battery in order to reduce the rate of ageing and to extend battery life. The BMS often quantifies SoH based on capacity (SoHE) and power fade (SoHP) without diagnosing the root causes. In line with this, Incremental Capacity (IC) and Differential Voltage (DV) techniques are used to identify and quantify degradation modes as well as to estimate and to predict the SoHE. These techniques were applied to four parallelised LIBs loaded with a constant current profile for 500 cycles. Loss of active material and loss of lithium ions were identified to be the most relevant degradation modes for this experiment. Moreover, a linear relationship between the intensity of the peaks of the IC and DV curves were identified with respect to the SoHE. This result may enable the future estimation and prediction of SoHE in a simple way. Overall, the outcomes of this work may support novel strategies to control SoHE within the BMS, so that the rate of battery degradation can be reduced.

show abstract

“…They found that both the electrodes well-maintained their specific capacity except the loss of lithium inventory. Dubarry et al [63] attempted to identify the contributions of several factors to capacity loss by using an incremental capacity analysis. Again, lithium inventory loss is found to be the main cause of the capacity degradation of the LFP-based cell.…”

Section: Sphericalmentioning

confidence: 99%

Precipitated silica as filler for polymer electrolyte based on poly(acrylonitrile)/sulfolane

Kurc

2014

J Solid State Electrochem

View full text Add to dashboard Cite

The aim of the present work was to perform a preliminary study of the physicochemical properties of hybrid organic-inorganic gel electrolytes for Li-ion batteries based on the PAN/TMS -poly(acrylonitrile)/sulfolane -polymeric matrix and surface-modified precipitated silicas. Modifications were done by means of the so-called dry method using silane U-511 3-methacryloxypropyltrimetoxysilane. Scanning electron microscopy (SEM), noninvasive back scattering method (NIBS), specific surface area (BET), the degree of modification of the silica fillers-Fourier-transform infrared spectroscopy (FT-IR), impedance analysis, and charging/ discharging were carried out. It is found that the silica fillers were homogeneously dispersed in the polymeric matrix, which enhanced conductivity and electrochemical stability of porous polymer electrolytes. Applicability of the prepared gel electrolytes for the Li-ion technology was estimated on the basis of specific conductivity measurements. It was shown that modification of the silica surface by the silane causes an increase in the gel-specific conductivity by about 2 orders of magnitude as compared to gel with unmodified silica.

show abstract

Incremental Capacity Analysis and Close-to-Equilibrium OCV Measurements to Quantify Capacity Fade in Commercial Rechargeable Lithium Batteries

Cited by 346 publications

References 17 publications

Intrinsic Variability in the Degradation of a Batch of Commercial 18650 Lithium-Ion Cells

Intrinsic Variability in the Degradation of a Batch of Commercial 18650 Lithium-Ion Cells

A SoH Diagnosis and Prognosis Method to Identify and Quantify Degradation Modes in Li-ion Batteries using the IC/DV technique

Precipitated silica as filler for polymer electrolyte based on poly(acrylonitrile)/sulfolane

Contact Info

Product

Resources

About