Analysis of Charge Carrier Transport Toward Optimized Cathode Composites for All‐Solid‐State Li−S Batteries

Dewald, Georg F.; Ohno, Saneyuki; Hering, Joachim G. C.; Janek, Jürgen; Zeier, Wolfgang G.

doi:10.1002/batt.202000194

Cited by 73 publications

(99 citation statements)

References 139 publications

(357 reference statements)

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“…The direct‐current polarization measurements of symmetric cells were conducted by reference to the previous report. [ 34 ] For electronic conductivity (σ el ), constant potentials of 5, −10, 20, and −30 mV were applied for 6 h for each potential. For ionic conductivity (σ ion ), constant potentials of 60 and −40 mV were applied for 12 h for each potential.…”

Section: Methodsmentioning

confidence: 99%

Room‐Temperature All‐Solid‐State Lithium–Organic Batteries Based on Sulfide Electrolytes and Organodisulfide Cathodes

Yang

Wang

et al. 2021

Advanced Energy Materials

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All‐solid‐state design is effective to address the challenges of Lithium –organic batteries, such as the dissolution of organic electrode materials (OEMs) and the safety of the Li anode. However, previous attempts, based on carbonyl‐type OEMs failed to achieve acceptable electrochemical performance in room‐temperature all‐solid‐state Li batteries (ASSLBs). Herein, the authors report the first organodisulfide cathode, poly(trithiocyanuric acid) (PTTCA), for ASSLBs. By compositing with carbon nanotubes to enhance the electronic conductivity and using the sulfide electrolyte, Li7P3S11, to build an electrochemically favorable interface, PTTCA demonstrates an electrochemical performance superior to all the OEMs reported so far in ASSLBs at room temperature, including a reversible capacity of 410 mAh g−1, an energy density of 767 Wh kg−1, and a capacity retention of 83% after 100 cycles. It is believed that this work provides new orientation and insights for the further development of both ASSLBs and OEMs.

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Section: Methodsmentioning

confidence: 99%

Room‐Temperature All‐Solid‐State Lithium–Organic Batteries Based on Sulfide Electrolytes and Organodisulfide Cathodes

Yang

Wang

et al. 2021

Advanced Energy Materials

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“…As shown above, the synthesis of solid electrolytes via mechanochemical milling often leads to better ionic conductors, nevertheless, Dewald et al [ 168 ] have shown for Li 6 PS 5 Cl and Li 10 GeP 2 S 12 that the ionic conductivity decreases if the ampoule synthesized compound is further processed in the ball mill ( Figure 9 ). By investigating the compound by X‐ray diffraction, it was shown that the observed trends by rapid annealing and quenching are reversed when a crystalline compound is processed in the ball mill, where a significant amorphization occurs.…”

Section: The Influence Of Mechanochemical Processing Of Solid‐state Batteriesmentioning

confidence: 99%

Energy Storage Materials for Solid‐State Batteries: Design by Mechanochemistry

Schlem

Burmeister

Michalowski

et al. 2021

Advanced Energy Materials

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Commercialization of solid‐state batteries requires the upscaling of the material syntheses as well as the mixing of electrode composites containing the solid electrolyte, cathode active materials, binders, and conductive additives. Inspired by recent literature about the tremendous influence of the employed milling and dispersing procedure on the resulting ionic transport properties of solid ionic conductors and the general performance of all solid‐state batteries, in this review, the underlying physical and mechanochemical processes that influence this processing are discussed. By discussing and combining the theoretical backgrounds of mechanical milling with regard to mechanochemical synthesis and dispersing of particles together with a wide range of examples, a better understanding of the critical parameters attached to mechanical milling of solid electrolytes and solid‐state battery components is provided.

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“…However, the cathode tortuosity and processing have to be strongly adapted as intimate contact between the solid electrolyte and sulfur-carbon composite is crucial. [56] Polymeric electrolytes are easier to process but need to be run at elevated temperatures, leading to the partial dissolution of polysulfides and a charge/discharge behavior, which is known from state-of-the-art of ether electrolytes. [57] Further developments are, however, still required to enable Li-S technology to fulfil its potential.…”

Section: Limitationsmentioning

confidence: 99%

Recent Progress and Emerging Application Areas for Lithium–Sulfur Battery Technology

et al. 2020

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With the ever-increasing need for electrification across many application sectors, the development of new energy-storage technologies is of increasing relevance and critical importance. Electrification is progressing significantly within the traditional transportation sectors such as electric bikes, cars, buses, and other commercial vehicles, enabled by continued cell development and Gigafactory-scale mass production of Li-ion battery (LIB) technology. However, two key factors are starting to drive the need for new solutions to be found. One factor is the secure supply of key elements-mainly cobalt and nickelused in most of the conventional Li-ion cells which are becoming increasingly critical. The other is the performance requirements of desirable emerging application areas that are beyond the capabilities of traditional LIB technology. Examples include large commercial vehicles, [1] high-altitude long endurance (HALE), high-altitude pseudosatellites (HAPS), electric vertical takeoff and landing (eVTOL), [2] and electric passenger aircraft. The weight of the battery system (BSM) is an especially critical factor for these aviation applications. The battery systems' performance requirements differ across these applications: power, cycle life, system cost, etc. However, the need for a high gravimetric energy density, 400 Wh kg À1 and beyond, is common across them all. Higher energy battery systems will enable these vehicles to achieve extended range, a longer mission duration, lighter vehicle weight, or increased payload. In the following sections, key advantages, limitations, and progress made to extend cycle life, energy, power, and safety of Li-S battery management systems (BMS) are described. Further, recent advances regarding modeling, battery system management, and the integration of Li-S batteries into present as well as future real-world applications are summarized. 2. Lithium-Sulfur Battery Technology 2.1. Advantages LIB systems are the current technology of choice for many applications; however, the achievable specific energy reaches a maximum at around 240-300 Wh kg À1 at the cell level. [3] Emerging

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Analysis of Charge Carrier Transport Toward Optimized Cathode Composites for All‐Solid‐State Li−S Batteries

Cited by 73 publications

References 139 publications

Room‐Temperature All‐Solid‐State Lithium–Organic Batteries Based on Sulfide Electrolytes and Organodisulfide Cathodes

Room‐Temperature All‐Solid‐State Lithium–Organic Batteries Based on Sulfide Electrolytes and Organodisulfide Cathodes

Energy Storage Materials for Solid‐State Batteries: Design by Mechanochemistry

Recent Progress and Emerging Application Areas for Lithium–Sulfur Battery Technology

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