scholarly journals Structural ceramic batteries using an earth-abundant inorganic waterglass binder

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Alan Ransil ◽  
Angela M. Belcher
Keyword(s):  
Rate Capability ◽  
Tensile Modulus ◽  
Temperature Stability ◽  
Free Cell ◽  
High Rate ◽  
Level Energy ◽  
Battery Materials ◽  
Electrode Binder ◽  
Earth Abundant ◽  
Structural Battery

AbstractSodium trisilicate waterglass is an earth-abundant inorganic adhesive which binds to diverse materials and exhibits extreme chemical and temperature stability. Here we demonstrate the use of this material as an electrode binder in a lay-up based manufacturing system to produce structural batteries. While conventional binders for structural batteries exhibit a trade-off between mechanical and electrochemical performance, the waterglass binder is rigid, adhesive, and facilitates ion transport. The bulk binder maintains a Young’s modulus of >50 GPa in the presence of electrolyte solvent while waterglass-based electrodes have high rate capability and stable discharge capacity over hundreds of electrochemical cycles. The temperature stability of the binder enables heat treatment of the full cell stack following lay-up shaping in order to produce a rigid, load-bearing part. The resulting structural batteries exhibit impressive multifunctional performance with a package free cell stack-level energy density of 93.9 Wh/kg greatly surpassing previously published structural battery materials, and a tensile modulus of 1.4 GPa.

scholarly journals Oxygen-Deficient β-MnO2@Graphene Oxide Cathode for High-Rate and Long-Life Aqueous Zinc Ion Batteries

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Shouxiang Ding ◽  
Mingzheng Zhang ◽  
Runzhi Qin ◽  
Jianjun Fang ◽  
Hengyu Ren ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Manganese Oxides ◽  
Rate Capability ◽  
High Energy ◽  
Zinc Ion ◽  
Cycling Stability ◽  
High Rate ◽  
High Energy Density ◽  
Superior Performance ◽  
Long Life

AbstractRecent years have witnessed a booming interest in grid-scale electrochemical energy storage, where much attention has been paid to the aqueous zinc ion batteries (AZIBs). Among various cathode materials for AZIBs, manganese oxides have risen to prominence due to their high energy density and low cost. However, sluggish reaction kinetics and poor cycling stability dictate against their practical application. Herein, we demonstrate the combined use of defect engineering and interfacial optimization that can simultaneously promote rate capability and cycling stability of MnO2 cathodes. β-MnO2 with abundant oxygen vacancies (VO) and graphene oxide (GO) wrapping is synthesized, in which VO in the bulk accelerate the charge/discharge kinetics while GO on the surfaces inhibits the Mn dissolution. This electrode shows a sustained reversible capacity of ~ 129.6 mAh g−1 even after 2000 cycles at a current rate of 4C, outperforming the state-of-the-art MnO2-based cathodes. The superior performance can be rationalized by the direct interaction between surface VO and the GO coating layer, as well as the regulation of structural evolution of β-MnO2 during cycling. The combinatorial design scheme in this work offers a practical pathway for obtaining high-rate and long-life cathodes for AZIBs.

Binder-free MnO2 as a high rate capability cathode for aqueous magnesium ion battery

2021 ◽  
Vol 869 ◽  
pp. 159279 ◽  
Author(s):  
Zhenzhen Liu ◽  
Wanhai Zhou ◽  
Jian He ◽  
Hui Chen ◽  
Ruixue Zhang ◽  
...  
Keyword(s):  
Rate Capability ◽  
High Rate ◽  
Magnesium Ion ◽  
High Rate Capability ◽  
Binder Free

scholarly journals Enhancing Li-ion capacity and rate capability in cation-defective vanadium ferrite aerogels via aluminum substitution

RSC Advances ◽  
2021 ◽  
Vol 11 (24) ◽  
pp. 14495-14503
Author(s):  
Christopher N. Chervin ◽  
Ryan H. DeBlock ◽  
Joseph F. Parker ◽  
Bethany M. Hudak ◽  
Nathaniel L. Skeele ◽  
...  
Keyword(s):  
Rate Capability ◽  
High Rate ◽  
Rate Performance ◽  
Li Ion ◽  
High Rate Performance ◽  
Aluminum Substitution

Substituting electroinactive Al3+ into vanadium ferrite aerogels boosts capacity to battery-relevant levels but in a material that expresses pseudocapacitive character and high-rate performance.

Kinetic analysis and alloy designs for metal/metal fluorides toward high rate capability for all-solid-state fluoride-ion batteries

2021 ◽  
Vol 9 (11) ◽  
pp. 7018-7024
Author(s):  
Takahiro Yoshinari ◽  
Datong Zhang ◽  
Kentaro Yamamoto ◽  
Yuya Kitaguchi ◽  
Aika Ochi ◽  
...  
Keyword(s):  
Solid State ◽  
Rate Capability ◽  
High Rate ◽  
Fluoride Ion ◽  
Li Ion Batteries ◽  
High Rate Capability ◽  
Metal Fluorides ◽  
New Concepts ◽  
Metal Metal ◽  
Li Ion

A Cu–Au cathode material for all-solid-state fluoride-ion batteries with high rate-capability was designed as new concepts for electrochemical energy storage to handle the physicochemical energy density limit that Li-ion batteries are approaching.

Unraveling the Rapid Redox Behavior of Li‐Excess 3d‐Transition Metal Oxides for High Rate Capability

2020 ◽  
Vol 10 (17) ◽  
pp. 1904092 ◽  
Author(s):  
Wooyoung Jin ◽  
Seungjun Myeong ◽  
Jaeseong Hwang ◽  
Haeseong Jang ◽  
Jaekyung Sung ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Rate Capability ◽  
High Rate ◽  
Redox Behavior ◽  
High Rate Capability

Hierarchical Carbon Decorated Li3V2(PO4)3as a Bicontinuous Cathode with High-Rate Capability and Broad Temperature Adaptability

2014 ◽  
Vol 4 (16) ◽  
pp. 1400107 ◽  
Author(s):  
Yanzhu Luo ◽  
Xu Xu ◽  
Yuxiang Zhang ◽  
Yuqiang Pi ◽  
Yunlong Zhao ◽  
...  
Keyword(s):  
Rate Capability ◽  
High Rate ◽  
High Rate Capability ◽  
Hierarchical Carbon ◽  
Temperature Adaptability
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