Recent developments and likely advances in lithium rechargeable batteries

Ritchie, A.G.

doi:10.1016/j.jpowsour.2004.03.013

Cited by 127 publications

(60 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This presents a major challenge in remote environments with limited accessibility. Significant work is being done to address the energy limits of current batteries [2,3] but current trends show that batteries cannot meet the high-energy requirements of long duration field sensor networks.…”

Section: Introductionmentioning

confidence: 99%

Degradation in PEM Fuel Cells and Mitigation Strategies Using System Design and Control

Thangavelautham¹

2018

Proton Exchange Membrane Fuel Cell

View full text Add to dashboard Cite

The rapid miniaturization of electronics, sensors, and actuators has reduced the cost of field sensor networks and enabled more functionality in ever smaller packages. Networks of field sensors have emerging applications in environmental monitoring, in disaster monitoring, security, and agriculture. Batteries limit potential applications due to their low specific energy. A promising alternative is photovoltaics. Photovoltaics require large, bulky panels and are impacted by daily and seasonal variation in solar insolation that requires coupling to a backup power source. Polymer electrolyte membrane (PEM) fuel cells are a promising alternative, because they are clean, quiet, and operate at high efficiencies. However, challenges remain in achieving long lives due to catalyst degradation and hydrogen storage. In this chapter, we present a design framework for high-energy fuel cell power supplies applied to field sensor networks. The aim is to achieve long operational lives by controlling degradation and utilizing high-energy density fuels such as lithium hydride to produce hydrogen. Lithium hydride in combination with fuel-cell wastewater or ambient humidity can achieve fuel specific energy of 5000 Wh/kg. The results of the study show that the PEM hybrid system fueled using lithium hydride offers a three-to fivefold reduction in mass compared to state-of-the-art batteries.

show abstract

Section: Introductionmentioning

confidence: 99%

Degradation in PEM Fuel Cells and Mitigation Strategies Using System Design and Control

Thangavelautham¹

2018

Proton Exchange Membrane Fuel Cell

View full text Add to dashboard Cite

show abstract

“…1,2 Special attention is given to improve the stability, safety, and required performance of lithium-ion batteries such as high energy density, long cycle life, and wide operating temperature range. Usually, lithium electrolytes consist of lithium salts and organic polymer liquids.…”

Section: Introductionmentioning

confidence: 99%

Lithium-Ion Mobility in Quaternary Boro–Germano–Phosphate Glasses

et al. 2016

View full text Add to dashboard Cite

Effect of the structural changes, electrical conductivity, and dielectric properties on the addition of a third glass-former, GeO 2 , to the borophosphate glasses, 40Li 2 O−10B 2 O 3 −(50 − x)P 2 O 5 −xGeO 2 , x = 0−25 mol %, has been studied. Introduction of GeO 2 causes the structural modifications in the glass network, which results in a continuous increase in electrical conductivity. Glasses with low GeO 2 content, up to 10 mol %, show a rapid increase in dc conductivity as a result of the interlinkage of slightly depolymerized phosphate chains and negatively charged [GeO 4 ] − units, which enhances the migration of Li + ions. The Li + ions compensate these delocalized charges connecting both phosphate and germanium units, which results in reduction of both bond effectiveness and binding energy of Li + ions and therefore enables their hop to the next charge-compensating site. For higher GeO 2 content, the dc conductivity increases slightly, tending to approach a maximum in Li + ion mobility caused by the incorporation of GeO 2 units into phosphate network combined with conversion of GeO 4 to GeO 6 units. The strong cross-linkage of germanium and phosphate units creates heteroatomic P−O−Ge bonds responsible for more effectively trapped Li + ions. A close correspondence between dielectric and conductivity parameters at high frequencies indicates that the increase in conductivity indeed is controlled by the modification of structure as a function of GeO 2 addition.

show abstract

“…Graphite is widely used as anode material for Liion batteries; graphite is not electrochemically stable when used together with commonly used electrolytes 1) . A Liion battery is rechargeable battery in which Li-ions move from the anode to the cathode during discharge and back when charging.…”

Section: Crystal Structural Determination By X-ray Diffractionmentioning

confidence: 99%

Chemical and Physical Deterioration of Lithium-ion Battery

Kato

Katayama

Tsunoda

et al. 2014

J. Jpn. Inst. Energy

View full text Add to dashboard Cite

The life cycle assessment of lithium-ion (Li-ion) rechargeable battery was evaluated by charge and discharge processing. The influence of the temperature was studied during several hundred cycles of charge/discharge process of Li-ion battery. The charging capacity was observed to be decreased with increased number of cycle, especially at higher temperature of the environment of 60℃. The cathode of Li-ion battery was found to be affected by heat stress and charge/discharge cycles by XRD analysis. The GC-FID and GC-MS studies revealed that the diethylfluorophosphate (DEFP) is a degraded product of electrolyte. Though the decomposition of ethylene carbonate (EC), a major component of the electrolyte in the Li-ion battery was not clearly found, the relative area of DEFP to that of EC was found to be increased with increased charge /discharge cycle number at 60℃ .

show abstract

Recent developments and likely advances in lithium rechargeable batteries

Cited by 127 publications

References 14 publications

Degradation in PEM Fuel Cells and Mitigation Strategies Using System Design and Control

Degradation in PEM Fuel Cells and Mitigation Strategies Using System Design and Control

Lithium-Ion Mobility in Quaternary Boro–Germano–Phosphate Glasses

Chemical and Physical Deterioration of Lithium-ion Battery

Contact Info

Product

Resources

About