ChemInform Abstract: Insertion Electrode Materials for Rechargeable Lithium Batteries

Winter, Martin; Besenhard, Jürgen; Spahr, Michael E.; Novák, P.

doi:10.1002/chin.199837286

Cited by 5 publications

(5 citation statements)

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“…Thanks to a device developed by Huet et a1.,15 the simultaneous recording of the voltage fluctuations AV(t) and the electrolyte resistance fluctuations AR,(t) on two parallel channels allows the separate identification of the electrolyte resistance effects and the electrode potential effects. 16 In the case of the noise generated by inert particles, the electrolyte resistance fluctuations are due to the perturbation of the primary current distribution by nonconducting bodies, and ARe is a function only of geometrical factors such as size and position of the particles with respect to the electrode. Hence, the trajectory of the particles can be deduced from the shape of the individual resistance transients.…”

Section: Av(t) = Iar(t) + Ae(t)mentioning

confidence: 99%

“…(The solvated intercalation of lithium occurs mainly at -0.8 V vs Li/Lit, whereas film formation starts at more positive potentials. [13][14][15][16][17] Since the viscosity of pure-ECbased electrolytes is rather high, mixtures of EC with lowviscosity solvents such as dimethyl carbonate (DMC) or diethyl carbonate are preferred. Nevertheless, although the formation of binary lithium/graphite compounds prevails in EC-based electrolytes, solvated lithium/graphite compounds also participate in the reactions.…”

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confidence: 99%

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Graphites for Lithium‐Ion Cells: The Correlation of the First‐Cycle Charge Loss with the Brunauer‐Emmett‐Teller Surface Area

Winter

Novák

Monnier³

1998

J. Electrochem. Soc.

325

212

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We have investigated the correlation of the irreversible charge loss during the first lithium intercalation into graphite electrodes with the Brunauer-Eminett-Teller (BET) specific surface area of Timrex graphites. The irreversible charge loss typically increases with a higher BET specific surface area but also depends strongly on the graphite type. We have found that not only the total external surface area but also the ratio between the prismatic and basal surfaces affects the irreversible charge loss. The latter effect occurs because particular reactions associated with charge losses such as solvated lithium intercalation or "self-discharge" of intercalated lithium (reaction of LlXC, with electrolyte components) take place only via/on the prismatic surfaces. The influence of the prismatic and basal surfaces is not taken into account if the irreversible charge losses are correlated only with the entire BET specific surface area of the samples. In order to describe the surface-dependent irreversible charge loss behavior of graphite we developed simple models that, in addition to the BET specific surface area, also take into account particle size distribution and particle morphology.) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 169.230.243.252 Downloaded on 2015-03-23 to IP

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Section: Av(t) = Iar(t) + Ae(t)mentioning

confidence: 99%

mentioning

confidence: 99%

Graphites for Lithium‐Ion Cells: The Correlation of the First‐Cycle Charge Loss with the Brunauer‐Emmett‐Teller Surface Area

Winter

Novák

Monnier³

1998

J. Electrochem. Soc.

325

212

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“…The effect of temperature in the range from −20 • C to +70 • C on the battery life was quantified by electrochemical methods and analyzed in [127]. In the test, high-power 18650 form factor cells with a LixNi 1 /3Co 1 /3O 2 /LiyMn 2 O 4 cathode and a graphite anode were used [128].…”

Section: Influence Of Temperature On Battery Lifementioning

confidence: 99%

Degradation of Lithium-Ion Batteries in an Electric Transport Complex

et al. 2021

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The article provides an overview and comparative analysis of various types of batteries, including the most modern type—lithium-ion batteries. Currently, lithium-ion batteries (LIB) are widely used in electrical complexes and systems, including as a traction battery for electric vehicles. Increasing the service life of the storage devices used today is an important scientific and technical problem due to their rapid wear and tear and high cost. This article discusses the main approaches and methods for researching the LIB resource. First of all, a detailed analysis of the causes of degradation was carried out and the processes occurring in lithium-ion batteries during charging, discharging, resting and difficult operating conditions were established. Then, the main factors influencing the service life are determined: charging and discharging currents, self-discharge current, temperature, number of cycles, discharge depth, operating range of charge level, etc. when simulating a real motion process. The work considers the battery management systems (BMS) that take into account and compensate for the influence of the factors considered. In the conclusion, the positive and negative characteristics of the presented methods of scientific research of the residual life of LIB are given and recommendations are given for the choice of practical solutions to engineers and designers of batteries. The work also analyzed various operating cycles of electric transport, including heavy forced modes, extreme operating modes (when the amount of discharge and discharge of batteries is greater than the nominal value) and their effect on the degradation of lithium-ion batteries.

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“…Lithium‐ion batteries (LIBs) have drawn significant attention for rechargeable energy storage for portable electronic devices and electric vehicles (EVs) because of their high energy densities and excellent rate capabilities . Many recent works have pursued to further increase energy densities of LIBs; however, it seems to be difficult to overcome the theoretical limits using existing chemistries and materials.…”

Section: Introductionmentioning

confidence: 99%

P2‐K_0.75[Ni_1/3Mn_2/3]O₂ Cathode Material for High Power and Long Life Potassium‐Ion Batteries

Choi

Park

et al. 2020

Advanced Energy Materials

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Rationally designed P2‐K0.75[Ni1/3Mn2/3]O2 is introduced as a novel cathode material for potassium‐ion batteries (KIBs). P2‐K0.75[Ni1/3Mn2/3]O2 cathode material designed through electrochemical ion‐exchange from P2‐Na2/3[Ni1/3Mn2/3]O2 exhibits satisfactory electrode performances; 110 mAh g−1 (20 mA g−1) retaining 86% of capacity for 300 cycles and unexpectedly high reversible capacity of about 91 mAh g−1 (1400 mA g−1) with excellent capacity retention of 83% over 500 cycles. According to theoretical and experimental investigations, the overall potassium storage mechanism of P2‐K0.75[Ni1/3Mn2/3]O2 is revealed to be a single‐phase reaction with small lattice change upon charge and discharge, presenting the Ni4+/2+ redox couple reaction. Such high power capability is possible through the facile K+ migration in the K0.75[Ni1/3Mn2/3]O2 structure with a low activation barrier energy of ≈210 meV. These findings indicate that P2‐K0.75[Ni1/3Mn2/3]O2 is a promising candidate cathode material for high‐rate and long‐life KIBs.

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ChemInform Abstract: Insertion Electrode Materials for Rechargeable Lithium Batteries

Cited by 5 publications

References 1 publication

Graphites for Lithium‐Ion Cells: The Correlation of the First‐Cycle Charge Loss with the Brunauer‐Emmett‐Teller Surface Area

Graphites for Lithium‐Ion Cells: The Correlation of the First‐Cycle Charge Loss with the Brunauer‐Emmett‐Teller Surface Area

Degradation of Lithium-Ion Batteries in an Electric Transport Complex

P2‐K_0.75[Ni_1/3Mn_2/3]O₂ Cathode Material for High Power and Long Life Potassium‐Ion Batteries

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ChemInform Abstract: Insertion Electrode Materials for Rechargeable Lithium Batteries

Cited by 5 publications

References 1 publication

Graphites for Lithium‐Ion Cells: The Correlation of the First‐Cycle Charge Loss with the Brunauer‐Emmett‐Teller Surface Area

Graphites for Lithium‐Ion Cells: The Correlation of the First‐Cycle Charge Loss with the Brunauer‐Emmett‐Teller Surface Area

Degradation of Lithium-Ion Batteries in an Electric Transport Complex

P2‐K0.75[Ni1/3Mn2/3]O2 Cathode Material for High Power and Long Life Potassium‐Ion Batteries

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Product

Resources

About

P2‐K_0.75[Ni_1/3Mn_2/3]O₂ Cathode Material for High Power and Long Life Potassium‐Ion Batteries