Freestanding and Sandwich‐Structured Electrode Material with High Areal Mass Loading for Long‐Life Lithium–Sulfur Batteries

Yu, Mingpeng; Ma, Jianjun; Xie, Ming; Song, Haiyang; Tian, Fuyang; Xu, Shanshan; Zhou, Yong; Li, Bei; Wu, Di; Qiu, Hong; Wang, Rongming

doi:10.1002/aenm.201602347

Cited by 160 publications

(95 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, the advantages of the Li‐MMT material are further demonstrated with battery tests at a low current density of 1 mA cm −2 (Figure S14c,d, Supporting Information). As expected, the Li‐MMT/S electrode shows highly stable performance and has a nearly 100% capacity retention upon operation up to ≈610 h. The comparison on sulfur loading and current density between this work and recent relevant publications are shown in Figure c . Apparently, the Li ion migratory ability of the Li‐MMT electrode is significantly more advantageous compared with those of other high sulfur‐loading electrodes.…”

supporting

confidence: 72%

Atomic Interlamellar Ion Path in High Sulfur Content Lithium‐Montmorillonite Host Enables High‐Rate and Stable Lithium–Sulfur Battery

et al. 2018

View full text Add to dashboard Cite

Fast lithium ion transport with a high current density is critical for thick sulfur cathodes, stemming mainly from the difficulties in creating effective lithium ion pathways in high sulfur content electrodes. To develop a high-rate cathode for lithium-sulfur (Li-S) batteries, extenuation of the lithium ion diffusion barrier in thick electrodes is potentially straightforward. Here, a phyllosilicate material with a large interlamellar distance is demonstrated in high-rate cathodes as high sulfur loading. The interlayer space (≈1.396 nm) incorporated into a low lithium ion diffusion barrier (0.155 eV) significantly facilitates lithium ion diffusion within the entire sulfur cathode, and gives rise to remarkable nearly sulfur loading-independent cell performances. When combined with 80% sulfur contents, the electrodes achieve a high capacity of 865 mAh g at 1 mA cm and a retention of 345 mAh g at a high discharging/charging rate of 15 mA cm , with a sulfur loading up to 4 mg. This strategy represents a major advance in high-rate Li-S batteries via the construction of fast ions transfer paths toward real-life applications, and contributes to the research community for the fundamental mechanism study of loading-independent electrode systems.

show abstract

supporting

confidence: 72%

Atomic Interlamellar Ion Path in High Sulfur Content Lithium‐Montmorillonite Host Enables High‐Rate and Stable Lithium–Sulfur Battery

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The presence of a low quantity of graphene sheets did not affect the crystallinity of the particles. The low graphene content is enough to anchor all TiO 2 particles due to their large dimensions and this greatly improves the volumetric performance of the electrode …”

Section: Resultsmentioning

confidence: 99%

High Volumetric Quasi‐Solid‐State Sodium‐Ion Capacitor under High Mass Loading Conditions

Thangavel

Kannan

Ponraj

et al. 2018

Adv Materials Inter

View full text Add to dashboard Cite

raises questions on their future use in large-scale energy storage devices. [2,4] Sodium-ion capacitors (NICs) are promising alternative devices owing to the wide availability of sodium resources and their competence for demonstrating higher performance than LICs. [5,6] NICs are fabricated by coupling a battery-type faradic electrode that stores sodium ions along with an electrical double-layer capacitor (EDLC)-type porous carbon electrode that stores anions simultaneously via quick surface adsorption. [7,8] NICs that exhibit enhanced energy retention at high power along with low energy loss per cycle is extensively under research.To date, several NICs have been studied and demonstrated a remarkable gravimetric energy-power performance usually at low mass loading conditions. For practical applications, a high volumetric performance with high mass loading is crucial. But it faces several major challenges: (i) high active mass loading leads to poor electrolyte penetration deeper into thicker electrodes and thereby making causing severe ionic diffusion and electron transport losses, (ii) achieving a high stability and high rate performance at high mass loading conditions is difficult as a small morphology change could simulate electrode cracking or peeling from current collectors, (iii) very high amount of conductive carbon in battery-type electrode and carbon itself as battery-type electrode greatly decreases the volumetric performance. [9][10][11][12][13] Furthermore, safety issues related to liquid electrolyte inflammability, and leakage must be seriously addressed with an alternative. [14][15][16][17][18][19] Battery electrodes in NICs primarily use intercalationtype compounds such as hard carbon, NaTi 2 (PO 4 ) 3 , NiCo 2 O 4 , Na 2 Fe 2 (SO 4 ) 3 , and Na 3 Ti 2 O 7 . [20][21][22][23] The sluggish diffusioncontrolled sodium-ion storage in these compounds enables insertion of a limited number of sodium ions into the battery electrode at higher power and, lowers the energy output. [24][25][26] However, utilizing the strategy of sodium-ion storage on the surface of the battery electrode by quick surface pseudocapacitance is advantageous over diffusion-controlled bulk storage. [27][28][29] NICs driven by cationic surface pseudocapacitive intercalation could deliver superior energy, especially at high power, along with longer cycle life even under high mass loading conditions. The new approach could boost both the gravimetric and The sodium-ion capacitor (NIC) represents an important research approach to bridge the gap between batteries and capacitors, but is still limited by inferior energy behavior at high power, low volumetric performance, low electrode mass loading, and safety issues with conventional liquid electrolyte. Herein, a high-performing, kinetically superior, and safer quasi-solid-state NIC utilizing the fast sodium storage in TiO 2 and rapid ion adsorption on a biomassderived porous carbon with a sodium-ion conducting P(VDF-HFP) gel polymer electrolyte is presented. Owing to high mass loading, low gr...

show abstract

“…X-ray photoelectron spectroscopy spectra of O 1s and S 2p for sulfur, CMCNa, CMCNa/S mixture, illustrating the formation of strong SO bond between the binder and sulfur. [109][110][111][112][113][114][115][116] Binders using rGO was first used in Li-S battery. [108] Copyright 2018, Springer Nature.…”

Section: Binder Using Conductive 2d Materialsmentioning

confidence: 99%

“…C) Schematic of the proposed role of the polysaccharide binder to counteract volume expansion of sulfur during sodium-ion insertion. Nitrogen-doped graphene, [111,112] nitrogen/sulfurcodoped graphene, [113] ethylenediamine functionalized rGO, [114] anthraquinone-modified rGO [115] have been demonstrated to facilitate the sulfur/polysulfide adhesion. [41] Copyright 2019, American Chemical Society.…”

Section: Binder Using Conductive 2d Materialsmentioning

confidence: 99%

Rational Design of Binders for Stable Li‐S and Na‐S Batteries

Guo

Zheng

2019

Adv Funct Materials

120

111

View full text Add to dashboard Cite

Binders play a critical role in stabilizing the sulfur cathode of Li-S and Na-S batteries. Over the past decade, the design of binder molecules has gone through tremendous evolution from primarily maintaining the structural integrity of the electrode against volume change to rationally immobilizing polysulfide intermediate and facilitating electron/ion transport in the charge and discharge process. This article reviews the development of binder for Li-S and Na-S batteries from the perspective of molecular design, and comprehensively discusses the correlation between the functions of the binder molecules and the cell performance. It also points out the future challenge and the potential solutions to address them. Figure 2. Timeline of the development of binders in terms of specific functions in Li-S and Na-S batteries. The binder in Li-S batteries has experienced a remarkable evolution in terms of functions, from fundamental structural and mechanical stabilizer (linear, hybrid, [30] dendrimer, [31] and crossedlinked binder [32,33] ) to versatile functions of polysulfide immobilization (polymer with functional groups [34][35][36] or cation groups [37] ) and facilitation of electron transport on the basis of conductive polymer. [38,39] It opens up the research of multifunctional binder. The analogous development route in the binder is found in Na-S batteries. [40,41] Reproduced with permission. [30]

show abstract

Freestanding and Sandwich‐Structured Electrode Material with High Areal Mass Loading for Long‐Life Lithium–Sulfur Batteries

Cited by 160 publications

References 57 publications

Atomic Interlamellar Ion Path in High Sulfur Content Lithium‐Montmorillonite Host Enables High‐Rate and Stable Lithium–Sulfur Battery

Atomic Interlamellar Ion Path in High Sulfur Content Lithium‐Montmorillonite Host Enables High‐Rate and Stable Lithium–Sulfur Battery

High Volumetric Quasi‐Solid‐State Sodium‐Ion Capacitor under High Mass Loading Conditions

Rational Design of Binders for Stable Li‐S and Na‐S Batteries

Contact Info

Product

Resources

About