Improving the structure stabilization of red phosphorus anodes via the shape memory effect of a Ni–Ti alloy for high-performance sodium ion batteries

2019 ◽  
Vol 55 (32) ◽  
pp. 4659-4662 ◽  
Author(s):  
Yingtao Wang ◽  
Xiaodan Yang ◽  
Chenyang Zhao ◽  
Yongliang Li ◽  
Hongwei Mi ◽  
...  
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
High Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Ti Alloy ◽  
Red Phosphorus ◽  
Structure Degradation ◽  
Structure Stabilization

The shape memory effect of a Ni–Ti alloy was applied to prevent the structure degradation of red phosphorus anodes for sodium-ion batteries.

High performance shape memory effect in nitinol wire for actuators with increased operating temperature range

2014 ◽  
Vol 07 (05) ◽  
pp. 1450063 ◽  
Author(s):  
Riccardo Casati ◽  
Carlo Alberto Biffi ◽  
Maurizio Vedani ◽  
Ausonio Tuissi
Keyword(s):  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
High Performance ◽  
Room Temperature ◽  
Operating Temperature ◽  
Niti Wire ◽  
Shape Memory Actuators ◽  
Nitinol Wire ◽  
Operating Temperature Range

In this research, the high performance shape memory effect (HP-SME) is experimented on a shape memory NiTi wire, with austenite finish temperature higher than room temperature. The HP-SME consists in the thermal cycling of stress induced martensite and it allows achieving mechanical work higher than that produced by conventional shape memory actuators based on the heating/cooling of detwinned martensite. The Nitinol wire was able to recover about 5.5% of deformation under a stress of 600 MPa and to withstand about 5000 cycles before failure. HP-SME path increased the operating temperature of the shape memory actuator wire. Functioning temperatures higher than 100°C was reached.

High-performance red phosphorus/carbon nanofibers/graphene free-standing paper anode for sodium ion batteries

2018 ◽  
Vol 6 (4) ◽  
pp. 1574-1581 ◽  
Author(s):  
Xiaoxin Ma ◽  
Long Chen ◽  
Xiaohua Ren ◽  
Guangmei Hou ◽  
Lina Chen ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Carbon Nanofibers ◽  
High Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Red Phosphorus ◽  
Free Standing ◽  
Graphene Electrode ◽  
Excellent Electrochemical Performance ◽  
Electrospinning Method

A novel flexible P/carbon nanofibers@graphene electrode, which exhibits an excellent electrochemical performance, is fabricated via a vapor-redistribution and electrospinning method.

Heat Treatment of Ni-Ti Alloy for Improvement of Shape Memory Effect

1997 ◽  
Vol 12 (1) ◽  
pp. 107-115 ◽  
Author(s):  
K. Sadrnezhaad ◽  
F. Mashhadi ◽  
R. Sharghi
Keyword(s):  
Heat Treatment ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Ti Alloy

Hollow nanoporous red phosphorus as an advanced anode for sodium-ion batteries

2018 ◽  
Vol 6 (27) ◽  
pp. 12992-12998 ◽  
Author(s):  
Shuai Liu ◽  
Hui Xu ◽  
Xiufang Bian ◽  
Jinkui Feng ◽  
Jie Liu ◽  
...  
Keyword(s):  
High Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Red Phosphorus ◽  
Boiling Process

We have demonstrated a novel hollow nanoporous red phosphorus as a high-performance anode for SIBs via a boiling process.

The Effect of Heat Treatment on the Shape Memory Effect of Ni-Ti Alloy Ultra-Thin Wires

2011 ◽  
Vol 332-334 ◽  
pp. 912-915
Author(s):  
Dan Zhang ◽  
Lei Xu ◽  
Rui Wang ◽  
Li Feng Xu
Keyword(s):  
Heat Treatment ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Crystal Morphology ◽  
Treatment Temperature ◽  
Ti Alloy ◽  
Thin Wires ◽  
Treatment Conditions

Various heat treatment conditions with temperature scans of 300-700 °C, and annealing time scans of 1-4 hours were adopted in the annealing of Ti-49.5at.%-Ni shape memory alloy ultra thin wires. The mechanical hysteretic curves and the crystal morphology were obtained by the tensile-recovery testing and scan electric microscopes (SEM). The result shows that the shape memory effect of Ni-Ti alloy first decline after rising with the heat treatment temperature increases. Alloy with heat treatment effect in 500°C, presents the best. Time is not a significant factor for heat treatment.

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