Modelling electrode material utilization in the trench model 3D-microbattery by finite element analysis

Zadin, Vahur; Kasemägi, Heiki; Aabloo, Alvo; Brandell, Daniel

doi:10.1016/j.jpowsour.2010.02.056

Cited by 74 publications

(55 citation statements)

References 20 publications

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“…In addition, their work reported irregular current distribution among the posts, with the tips acting as locations of increased current density 21. 22…”

Section: Discussionmentioning

confidence: 99%

3D Architectured Anodes for Lithium‐Ion Microbatteries with Large Areal Capacity

et al. 2014

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Progress in the miniaturization of batteries has lagged well behind that of microelectronics. Although lithium‐ion (Li‐ion) battery technology has been vital in advancing portable consumer electronics, it is not clear whether future generations of microscale devices can be powered using traditional battery designs. In this paper, we report on the fabrication and properties of battery electrodes comprised of arrays of vertically aligned carbon rods. The electrodes exhibit good reversibility and represent the first carbon arrays to achieve areal capacities greater than 5 mAh cm−2 at relatively large current densities, although the capacity does fade with cycling. The 3D battery designs based on these architectures offer the promise of achieving high energy densities within small footprint areas.

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“…In addition, their work reported irregular current distribution among the posts, with the tips acting as locations of increased current density 21. 22…”

Section: Discussionmentioning

confidence: 99%

3D Architectured Anodes for Lithium‐Ion Microbatteries with Large Areal Capacity

et al. 2014

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“…Considering an assemblage of such optimally designed electrodes, alternating placement, e.g., in which an anode (/cathode) is surrounded by six cathodes (/anodes) may provide for more uniform current density. However, it was shown [347] that it would be very difficult to achieve homogeneous lithiation/ delithiation (Section 2.2.1) due to preferential current density concentration at the electrode tips. While such differential current densities at the electrodes are prevalent to separated cathodes and anodes, they may be avoided through the use of alternate designs.…”

Section: Developing Novel Architectures For Charge and Energy Storagementioning

confidence: 99%

Charge transfer and storage in nanostructures

Bandaru

Yamada

Narayanan

et al. 2015

Materials Science and Engineering: R: Reports

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“…In this simulation study, Zadin et al investigated how varying the electrode conductivity, plate length, and plate tip radius of curvature would affect the performance of a Li-ion battery composed of a graphite anode and a LiCoO 2 cathode. 20 Results showed that even in electrodes of similar conductivities, lithium intercalation is non-uniform across the plates, and much of the electrochemical activity occurs at the electrode tips. Rounding the plate tip can distribute the current more evenly, and reducing the size of the plates creates a more uniform environment ( Figure 4 ).…”

Section: Three-dimensional Microbattery Designsmentioning

confidence: 99%