Ionomer Binders Can Improve Discharge Rate Capability in Lithium-Ion Battery Cathodes

2011 ◽  
Vol 158 (2) ◽  
pp. A207 ◽  
Author(s):  
Jung-Min Oh ◽  
Olt Geiculescu ◽  
Darryl DesMarteau ◽  
Stephen Creager
Keyword(s):  
Lithium Ion Battery ◽  
Discharge Rate ◽  
Rate Capability ◽  
Lithium Ion

scholarly journals High Discharge Rate Lithium Ion Batteries with the Composite Cathode of LiFePO4/Mesocarbon Nanobead

2010 ◽  
Vol 177 ◽  
pp. 208-210
Author(s):  
Yi Jie Gu ◽  
Cui Song Zeng ◽  
Yu Bo Chen ◽  
Hui Kang Wu ◽  
Hong Quan Liu ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Room Temperature ◽  
Discharge Rate ◽  
Rate Capability ◽  
Lithium Ion ◽  
Composite Cathode ◽  
Rate Performance ◽  
High Discharge ◽  
High Discharge Rate ◽  
Lifepo4 Cathode

Olivine compounds LiFePO4 were prepared by the solid state reaction, and the electrochemical properties were studied with the composite cathode of LiFePO4/mesocarbon nanobead. High discharge rate performance can be achieved with the designed composite cathode of LiFePO4/mesocarbon nanobead. According to the experiment results, batteries with the composite cathode deliver discharge capacity of 1087mAh for 18650 type cell at 20C discharge rate at room temperature. The analysis shows that the uniformity of mesocarbon nanobead around LiFePO4 can supply enough change for electron transporting, which can enhance the rate capability for LiFePO4 cathode lithium ion batteries. It is confirmed that lithium ion batteries with LiFePO4 as cathode are suitable to electric vehicle application.

scholarly journals Stretchable batteries with gradient multilayer conductors

2019 ◽  
Vol 5 (7) ◽  
pp. eaaw1879 ◽  
Author(s):  
Minsu Gu ◽  
Woo-Jin Song ◽  
Jaehyung Hong ◽  
Sung Youb Kim ◽  
Tae Joo Shin ◽  
...  
Keyword(s):  
Self Assembly ◽  
Multiple Scales ◽  
Discharge Rate ◽  
Rate Capability ◽  
Lithium Ion ◽  
Charge Storage ◽  
Storage Devices ◽  
Essential Components ◽  
Stretchable Conductors ◽  
A Charge

Stretchable conductors are essential components in next-generation deformable and wearable electronic devices. The ability of stretchable conductors to achieve sufficient electrical conductivity, however, remains limited under high strain, which is particularly detrimental for charge storage devices. In this study, we present stretchable conductors made from multiple layers of gradient assembled polyurethane (GAP) comprising gold nanoparticles capable of self-assembly under strain. Stratified layering affords control over the composite internal architecture at multiple scales, leading to metallic conductivity in both the lateral and transversal directions under strains of as high as 300%. The unique combination of the electrical and mechanical properties of GAP electrodes enables the development of a stretchable lithium-ion battery with a charge-discharge rate capability of 100 mAh g−1 at a current density of 0.5 A g−1 and remarkable cycle retention of 96% after 1000 cycles. The hierarchical GAP nanocomposites afford rapid fabrication of advanced charge storage devices.

NiCo-LDH/Ti3C2 MXene hybrid materials for lithium ion battery with high-rate capability and long cycle life

2020 ◽  
Vol 50 ◽  
pp. 143-153 ◽  
Author(s):  
Rui Zhang ◽  
Zhe Xue ◽  
Jiaqian Qin ◽  
Montree Sawangphruk ◽  
Xinyu Zhang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Hybrid Materials ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycle Life ◽  
High Rate ◽  
High Rate Capability ◽  
Long Cycle ◽  
Long Cycle Life

On the Latest Development of some Typical Cathode Materials for Lithium Ion Battery

2018 ◽  
Vol 783 ◽  
pp. 137-143
Author(s):  
Yong Tao Zhang ◽  
Xiao Li Hu
Keyword(s):  
Thermal Stability ◽  
Power Systems ◽  
Cathode Material ◽  
Lithium Ion Battery ◽  
Cathode Materials ◽  
Rate Capability ◽  
Lithium Ion ◽  
Modern Society ◽  
High Rate ◽  
Good Thermal Stability

The lithium-ion battery is widely and increasingly used in many portable electronic devices and high-power systems in the modern society. Currently, it is significant to develop excellent cathode materials to meet stringent standards for batteries. In this paper, recent developments were reviewed for several typical cathode materials with high voltages and good capacities. These cathode materials referred to LiCoO2, LiNiO2, LiMn2O4, LiMPO4 (M=Fe, Mn, Co and Ni, et al), and their composites. The technical bottlenecks about the cathode material is required to be conquered. For instance, LiCoO2 and LiNiO2 have high coulombic capacity and good cycling characteristics, but are costly and exhibit poor thermal stability. Simultaneously, LiMn2O4 exhibit good thermal stability, high voltage and high rate capability, but have low capacity. Thus it is advantageous to produce a composite which shares the benefits of both materials. The composite cathode material is superior over any single electrode material because the former has more balanced performance, and therefore, is promising to manufacture the next generation of batteries.

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