Publications database

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2018-08-16
08:39
OpenAccess [FZJ-2018-04940] Journal Article
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Pre-Lithiation Strategies for Rechargeable Energy Storage Technologies: Concepts, Promises and Challenges
Abstract: In order to meet the sophisticated demands for large-scale applications such as electro-mobility, next generation energy storage technologies require advanced electrode active materials with enhanced gravimetric and volumetric capacities to achieve increased gravimetric energy and volumetric energy densities. However, most of these materials suffer from high 1st cycle active lithium losses, e.g., caused by solid electrolyte interphase (SEI) formation, which in turn hinder their broad commercial use so far. [...]
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ddc:570
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2018-08-16
08:37
[FZJ-2018-04939] Journal Article
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Visualizing elemental deposition patterns on carbonaceous anodes from lithium ion batteries: A laser ablation-inductively coupled plasma-mass spectrometry study on factors influencing the deposition of lithium, nickel, manganese and cobalt after dissolution and migration from the Li 1 [Ni 1/3 Mn 1/3 Co 1/3 ]O 2 and LiMn 1.5 Ni 0.5 O 4 cathode
In this study, laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) is applied to previously aged carbonaceous anodes from lithium ion batteries (LIBs). These electrodes are treated by cyclic aging in a lithium ion cell set-up against Li1[Ni1/3Mn 1/3Co1/3]O2 = NMC111 to elucidate factors that influence transition metal dissolution (TMD) of the cathode and subsequent deposition on the anode. [...]
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ddc:620
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2018-08-16
08:34
[FZJ-2018-04938] Journal Article
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Triphenylphosphine Oxide as Highly Effective Electrolyte Additive for Graphite/NMC811 Lithium Ion Cells
Nickel-rich layered oxide materials (LiNixMnyCo1–x–yO2, x ≥ 0.8, LiNMC) attract great interest for application as positive electrode in lithium ion batteries (LIBs) due to high specific discharge capacities at moderate upper cutoff voltages below 4.4 V vs Li/Li+. However, the comparatively poor cycling stability as well as inferior safety characteristics prevent this material class from commercial application so far. [...]
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ddc:540
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2018-08-16
08:30
[FZJ-2018-04937] Journal Article
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Performance and cost of materials for lithium-based rechargeable automotive batteries
It is widely accepted that for electric vehicles to be accepted by consumers and to achieve wide market penetration, ranges of at least 500 km at an affordable cost are required. Therefore, significant improvements to lithium-ion batteries (LIBs) in terms of energy density and cost along the battery value chain are required, while other key performance indicators, such as lifetime, safety, fast-charging ability and low-temperature performance, need to be enhanced or at least sustained. [...]
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ddc:333.7
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2018-08-15
16:11
[FZJ-2018-04929] Journal Article
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Highly enhanced thermoelectric properties of Cu 1.8 S by introducing PbS
Digenite (Cu1.8S) has attracted extensive attention as candidate for use in thermoelectric applications due to its low-cost, low-toxicity characteristics, but the thermoelectric (TE) property is still not good. In this work, PbS was used for improving TE properties of polycrystalline Cu1.8S bulk. [...]
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ddc:670
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2018-08-15
13:57
[FZJ-2018-04917] Journal Article
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Ion Chromatography with Post-column Reaction and Serial Conductivity and Spectrophotometric Detection Method Development for Quantification of Transition Metal Dissolution in Lithium Ion Battery Electrolytes
Chromatographia 81(7), 995-1002 () [10.1007/s10337-018-3540-2]
We present a method for the separation and determination of transition metals in electrolytes based on ion chromatography (IC) with post-column reaction (PCR) and serial conductivity and spectrophotometric detection. Three IC columns [Metrosep C4—250/4.0 (column A), Metrosep C6—250/4.0 (column B), and Nucleosil 100-5SA—250/4.6 (column C)] with different capacities, and stationary phases were used and compared with each other for method development. [...]
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ddc:540
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2018-08-15
13:52
[FZJ-2018-04916] Conference Presentation (Invited)

Reproducible Collaborative Workflow
Helmholtz Metadata and Knowledge Platform, BerlinBerlin, Germany, 14 May 2018 - 14 May 20182018-05-142018-05-14

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2018-08-15
13:38
[FZJ-2018-04914] Conference Presentation (Invited)

Reusable publication of a cortical multi-area model at cellular resolution
CNS 2018, CNS, SeattleSeattle, USA, 16 Jul 2018 - 20 Jul 20182018-07-162018-07-20

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2018-08-15
13:35
[FZJ-2018-04913] Journal Article
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Evaluation of different plasma conditions and resolutions for understanding elemental organophosphorus analysis via GC-ICP-SF-MS
The state-of-the-art electrolyte in lithium ion battery application is composed of a solvent mixture of organic carbonates and lithium hexafluorophosphate (LiPF6) as the conducting salt. Decomposition reactions of the hexafluorophosphate anion with the organic carbonates and trace amounts of water in the system result in a large variety of organofluorophosphates. [...]
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ddc:540
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2018-08-15
13:34
[FZJ-2018-04911] Journal Article
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A high-capacity P2 Na 2/3 Ni 1/3 Mn 2/3 O 2 cathode material for sodium ion batteries with oxygen activity
Na2/3Ni1/3Mn2/3O2 with a P2 phase is investigated as a cathod material for sodium ion batteries. It delivers a high discharge capacity of 228 mAh g−1 within 1.5–4.5 V in half cells, which is much higher than the theoretical value of 172 mAh g−1. [...]
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ddc:620
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