Asynchronous reactions of “self-matrix” dual-crystals effectively accommodating volume expansion/shrinkage of electrode materials with enhanced sodium storage

2019 ◽  
Vol 55 (62) ◽  
pp. 9076-9079 ◽  
Author(s):  
Youchen Hao ◽  
Xifei Li ◽  
Wen Liu ◽  
Hirbod Maleki Kheimeh Sari ◽  
Jian Qin ◽  
...  
Keyword(s):  
Large Volume ◽  
Volume Expansion ◽  
Electrode Materials ◽  
Volume Changes ◽  
Sodium Storage

The dual-crystal FeS2 shows a better tolerance towards large volume changes because of the asynchronous reaction.

Experimental and Theoretical Characterization of Electrode Materials that Undergo Large Volume Changes and Application to the Lithium–Silicon System

2015 ◽  
Vol 119 (10) ◽  
pp. 5341-5349 ◽  
Author(s):  
Mark W. Verbrugge ◽  
Daniel R. Baker ◽  
Xingcheng Xiao ◽  
Qinglin Zhang ◽  
Yang-Tse Cheng
Keyword(s):  
Large Volume ◽  
Electrode Materials ◽  
Volume Changes ◽  
Silicon System ◽  
Theoretical Characterization

Rational Design of Quasi Zero-Strain NCM Cathode Materials for Minimizing Volume Change Effects in All-Solid-State Batteries

2019 ◽  
Author(s):  
Florian Strauss ◽  
Lea de Biasi ◽  
A-Young Kim ◽  
Jonas Hertle ◽  
Simon Schweidler ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Cathode Materials ◽  
Rational Design ◽  
Electrode Materials ◽  
Cycling Performance ◽  
Mechanical Degradation ◽  
Volume Changes ◽  
Solid State Batteries ◽  
All Solid State Batteries

Measures to improve the cycling performance and stability of bulk-type all-solid-state batteries (SSBs) are currently being developed with the goal of substituting conventional Li-ion battery (LIB) technology. As known from liquid electrolyte based LIBs, layered oxide cathode materials undergo volume changes upon (de)lithiation, causing mechanical degradation due to particle fracture, among others. Unlike solid electrolytes, liquid electrolytes are somewhat capable of accommodating morphological changes. In SSBs, the rigidity of the materials used typically leads to adverse contact loss at the interfaces of cathode material and solid electrolyte during cycling. Hence, designing zero- or low-strain electrode materials for application in next-generation SSBs is desirable. In the present work, we report on novel Co-rich NCMs, NCM361 (60% Co) and NCM271 (70% Co), showing minor volume changes up to 4.5 V vs Li<sup>+</sup>/Li, as determined by <i>operando</i> X-ray diffraction and pressure measurements of LIB pouch and pelletized SSB cells, respectively. Both cathode materials exhibit good cycling performance when incorporated into SSB cells using argyrodite Li<sub>6</sub>PS<sub>5</sub>Cl solid electrolyte, albeit their morphology and secondary particle size have not yet been optimized.

Rational Design of Quasi Zero-Strain NCM Cathode Materials for Minimizing Volume Change Effects in All-Solid-State Batteries

2019 ◽  
Author(s):  
Florian Strauss ◽  
Lea de Biasi ◽  
A-Young Kim ◽  
Jonas Hertle ◽  
Simon Schweidler ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Cathode Materials ◽  
Rational Design ◽  
Electrode Materials ◽  
Cycling Performance ◽  
Mechanical Degradation ◽  
Volume Changes ◽  
Solid State Batteries ◽  
All Solid State Batteries

Measures to improve the cycling performance and stability of bulk-type all-solid-state batteries (SSBs) are currently being developed with the goal of substituting conventional Li-ion battery (LIB) technology. As known from liquid electrolyte based LIBs, layered oxide cathode materials undergo volume changes upon (de)lithiation, causing mechanical degradation due to particle fracture, among others. Unlike solid electrolytes, liquid electrolytes are somewhat capable of accommodating morphological changes. In SSBs, the rigidity of the materials used typically leads to adverse contact loss at the interfaces of cathode material and solid electrolyte during cycling. Hence, designing zero- or low-strain electrode materials for application in next-generation SSBs is desirable. In the present work, we report on novel Co-rich NCMs, NCM361 (60% Co) and NCM271 (70% Co), showing minor volume changes up to 4.5 V vs Li<sup>+</sup>/Li, as determined by <i>operando</i> X-ray diffraction and pressure measurements of LIB pouch and pelletized SSB cells, respectively. Both cathode materials exhibit good cycling performance when incorporated into SSB cells using argyrodite Li<sub>6</sub>PS<sub>5</sub>Cl solid electrolyte, albeit their morphology and secondary particle size have not yet been optimized.

scholarly journals Polymer Binders: Characterization and Development toward Aqueous Electrode Fabrication for Sustainability

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 631
Author(s):  
Aleksander Cholewinski ◽  
Pengxiang Si ◽  
Marianna Uceda ◽  
Michael Pope ◽  
Boxin Zhao
Keyword(s):  
Energy Storage ◽  
Electrode Materials ◽  
Storage Systems ◽  
High Capacity ◽  
Energy Storage Systems ◽  
Volume Changes ◽  
Polymer Binders ◽  
Aqueous Conditions ◽  
Aqueous Binder ◽  
Electrode Processing

Binders play an important role in electrode processing for energy storage systems. While conventional binders often require hazardous and costly organic solvents, there has been increasing development toward greener and less expensive binders, with a focus on those that can be processed in aqueous conditions. Due to their functional groups, many of these aqueous binders offer further beneficial properties, such as higher adhesion to withstand the large volume changes of several high-capacity electrode materials. In this review, we first discuss the roles of binders in the construction of electrodes, particularly for energy storage systems, summarize typical binder characterization techniques, and then highlight the recent advances on aqueous binder systems, aiming to provide a stepping stone for the development of polymer binders with better sustainability and improved functionalities.

Facile Fabrication of Hollow CuO Nanocubes for Enhanced Lithium/Sodium Storage Performance

CrystEngComm ◽  
2021 ◽  
Author(s):  
Jie Zhao ◽  
Yuyan Zhao ◽  
Yujiao Zhang ◽  
Wence Yue ◽  
Xue Li ◽  
...  
Keyword(s):  
Volume Changes ◽  
Storage Performance ◽  
Ion Storage ◽  
Facile Fabrication ◽  
Sodium Storage

Hollow nanomaterials provide abundant reaction sites and facilitate tolerance for volume changes during the charging- discharging process, which is potential candidates for alkaline ion storage. In this work, hollow CuO...

Graphite@Silicon embedded in Carbon Conformally Coated Tiny SiO2 Nanoparticles Matrix for High-Performance Lithium-Ion Batteries

2021 ◽  
Author(s):  
Huitian Liu ◽  
Xu Liu ◽  
Zhaolin Liu ◽  
Junyan Tao ◽  
Xiaoqian Dai ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Large Volume ◽  
Volume Expansion ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Sio2 Nanoparticles ◽  
Carbon Composites ◽  
Effective Strategy ◽  
Si Anode

Engineering of graphite@Si/carbon composites is considered as an effective strategy to surmount the shortcomings of low conductivity and large volume expansion of bare Si anode materials for lithium-ion batteries. Nevertheless,...

Two-dimensional SnS2@PANI nanoplates with high capacity and excellent stability for lithium-ion batteries

2015 ◽  
Vol 3 (7) ◽  
pp. 3659-3666 ◽  
Author(s):  
Gang Wang ◽  
Jun Peng ◽  
Lili Zhang ◽  
Jun Zhang ◽  
Bin Dai ◽  
...  
Keyword(s):  
Electron Transport ◽  
Lithium Ion Batteries ◽  
Electrode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
Two Dimensional ◽  
Volume Changes ◽  
Nanostructured Electrode ◽  
Charge Discharge ◽  
Excellent Stability

Nanostructured electrode materials have been extensively studied with the aim of enhancing lithium ion and electron transport and lowering the stress caused by their volume changes during the charge–discharge processes of electrodes in lithium-ion batteries.

scholarly journals Enhanced Electrochemical Performance of Sb2O3 as an Anode for Lithium-Ion Batteries by a Stable Cross-Linked Binder

2019 ◽  
Vol 9 (13) ◽  
pp. 2677 ◽  
Author(s):  
Yong Liu ◽  
Haichao Wang ◽  
Keke Yang ◽  
Yingnan Yang ◽  
Junqing Ma ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Large Volume ◽  
Polyvinylidene Fluoride ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Electrochemical Stability ◽  
Esterification Reaction ◽  
Conductive Agent ◽  
Enhanced Electrochemical Performance

A binder plays an important role in lithium-ion batteries (LIBs), especially for the electrode materials which have large volume expansion during charge and discharge. In this work, we designed a cross-linked polymeric binder with an esterification reaction of Sodium Carboxymethyl Cellulose (CMC) and Fumaric Acid (FA), and successfully used it in an Sb2O3 anode for LIBs. Compared with conventional binder polyvinylidene fluoride (PVDF) and CMC, the new cross-linked binder improves the electrochemical stability of the Sb2O3 anode. Specifically, with CMC-FA binder, the battery could deliver ~611.4 mAh g−1 after 200 cycles under the current density of 0.2 A g−1, while with PVDF or CMC binder, the battery degraded to 265.1 and 322.3 mAh g−1, respectively. The improved cycling performance is mainly due to that the cross-linked CMC-FA network could not only efficiently improve the contact between Sb2O3 and conductive agent, but can also buffer the large volume charge of the electrode during repeated charge/discharge cycles.

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