High-rate performance of a mixed olivine cathode with off-stoichiometric composition

2015 ◽  
Vol 51 (68) ◽  
pp. 13279-13282 ◽  
Author(s):  
Jae Chul Kim ◽  
Xin Li ◽  
Byoungwoo Kang ◽  
Gerbrand Ceder
Keyword(s):  
Power Density ◽  
High Power ◽  
Stoichiometric Composition ◽  
High Rate ◽  
High Power Density ◽  
Rate Performance ◽  
Surface Phases ◽  
Crystalline Surface ◽  
High Rate Performance

By controlling off-stoichiometry, LiFe0.6Mn0.4PO4 with non-crystalline surface phases is formed, enabling the material to achieve high power density.

High rate capability Li3V2¬xNix(PO4)3/C (x = 0, 0.05, and 0.1) cathodes for Li-ion asymmetric supercapacitors

2015 ◽  
Vol 3 (22) ◽  
pp. 11807-11816 ◽  
Author(s):  
Marco Secchiaroli ◽  
Gabriele Giuli ◽  
Bettina Fuchs ◽  
Roberto Marassi ◽  
Margret Wohlfahrt-Mehrens ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
Rate Capability ◽  
High Energy ◽  
High Rate ◽  
High Power Density ◽  
Cycle Stability ◽  
High Rate Capability ◽  
Asymmetric Supercapacitors ◽  
Li Ion

Nanostructured Li3V2−xNix(PO4)3 (x = 0, 0.05, and 0.1) cathodes, thanks to their high rate capability and excellent cycle stability, are proposed as excellent candidates for the development of high energy and high power density Li-ion asymmetric supercapacitors.

scholarly journals Fluorinated graphene/sulfur hybrid cathode for high energy and high power density lithium primary batteries

RSC Advances ◽  
2018 ◽  
Vol 8 (23) ◽  
pp. 12701-12707 ◽  
Author(s):  
Sikan Peng ◽  
Shaojiu Yan ◽  
Nan Wang ◽  
Wenzheng Nan ◽  
Jixian Wang ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
High Energy ◽  
High Power Density ◽  
Rate Performance ◽  
Primary Battery ◽  
Fluorinated Graphene

Fluorinated graphene (FG)/sulfur hybrid cathode with monoclinic sulfur enables the lithium primary battery exhibiting excellent capacity and rate performance.

Enhanced high rate capability of Li intercalation in planar and edge defect-rich MoS2 nanosheets

Nanoscale ◽  
2019 ◽  
Vol 11 (18) ◽  
pp. 8882-8897 ◽  
Author(s):  
Akshay Kumar Budumuru ◽  
Benadict Rakesh ◽  
Chandran Sudakar
Keyword(s):  
Power Density ◽  
High Power ◽  
Rate Capability ◽  
Cycling Stability ◽  
High Rate ◽  
High Power Density ◽  
Mos2 Nanosheets ◽  
High Rate Capability ◽  
Edge Defect ◽  
Defect Sites

Defects in MoS2 nanosheets improve the rate capability and cycling stability in the intercalation regime. Li adsorbed at defect sites facilitates a high power density.

High Power Density Lead Acid Cell Operating at 70 °C

1978 ◽  
Vol 33 (11) ◽  
pp. 1245-1253 ◽  
Author(s):  
Heinz P. Fritz ◽  
Jürgen O. Besenhard ◽  
Antonios S. Paxinos
Keyword(s):  
Pore Structure ◽  
Power Density ◽  
Discharge Capacity ◽  
High Power ◽  
Negative Electrode ◽  
High Rate ◽  
High Power Density ◽  
Rate Discharge ◽  
High Rate Discharge ◽  
Lead Acid

Abstract The results presented show the feasibility of a high power density lead acid cell with tubular negatives and positives, operating at 70 °C. Although lead negatives are supposed to deteriorate fast at temperatures above 50 °C, tubular negatives at 70 °C exceed the cycle life of pasted negatives operating at conventional conditions. The high rate discharge capacity of negatives and positives is increasing considerably with temperature. It is concluded that the “temperature gain” of the negative electrode is due to increased mobility of soluble Pb2+ species through the passivating PbSO4 layer and to improved diffusion of H2SO4 in the pore structure.

LiV3O8 nanorods as cathode materials for high-power and long-life rechargeable lithium-ion batteries

RSC Advances ◽  
2014 ◽  
Vol 4 (49) ◽  
pp. 25494-25501 ◽  
Author(s):  
Peng Mei ◽  
Xing-Long Wu ◽  
Haiming Xie ◽  
Liqun Sun ◽  
Yanping Zeng ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Power ◽  
Lithium Ion ◽  
High Rate ◽  
Rate Performance ◽  
Capacity Retention ◽  
Long Term Stability ◽  
Long Life ◽  
High Rate Performance

Much enhanced capacity retention abilities, improved high-rate performance and long-term stability have been attained for LiV3O8 nanorods synthesized by a two-step route using VO2(B) nanosheets as the precursor.

scholarly journals High power and stable P-doped yolk-shell structured Si@C anode simultaneously enhancing conductivity and Li+ diffusion kinetics

Nano Research ◽  
2020 ◽  
Author(s):  
Ming Chen ◽  
Qinnan Zhou ◽  
Jiantao Zai ◽  
Asma Iqbal ◽  
TsegayeTadesse Tsega ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
Coulombic Efficiency ◽  
High Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Power Density ◽  
Rate Performance ◽  
Energy Storage Devices ◽  
Lithium Ion Capacitor

Abstract Silicon is a low price and high capacity anode material for lithium-ion batteries. The yolk-shell structure can effectively accommodate Si expansion to improve stability. However, the limited rate performance of Si anodes can’t meet people’s growing demand for high power density. Herein, the phosphorus-doped yolk-shell Si@C materials (P-doped Si@C) were prepared through carbon coating on P-doped Si/SiOx matrix to obtain high power and stable devices. Therefore, the as-prepared P-doped Si@C electrodes delivered a rapid increase in Coulombic efficiency from 74.4% to 99.6% after only 6 cycles, high capacity retention of ∼ 95% over 800 cycles at 4 A·g−1, and great rate capability (510 mAh·g−1 at 35 A·g−1). As a result, P-doped Si@C anodes paired with commercial activated carbon and LiFePO4 cathode to assemble lithium-ion capacitor (high power density of ∼ 61,080 W·kg−1 at 20 A·g−1) and lithium-ion full cell (good rate performance with 68.3 mAh·g−1 at 5 C), respectively. This work can provide an effective way to further improve power density and stability for energy storage devices.

Nanocrystalline-Li2FeSiO4 synthesized by carbon frameworks as an advanced cathode material for Li-ion batteries

2014 ◽  
Vol 2 (19) ◽  
pp. 6870-6878 ◽  
Author(s):  
Jinlong Yang ◽  
Xiaochun Kang ◽  
Lin Hu ◽  
Xue Gong ◽  
Shichun Mu
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
High Power ◽  
High Capacity ◽  
Lithium Ion ◽  
High Rate ◽  
Rate Performance ◽  
Li Ion Batteries ◽  
Li Ion ◽  
High Rate Performance

The nanocrystalline-Li2FeSiO4 with carbon frameworks, possessing high-capacity and high-rate performance, is a promising next-generation cathode material for high-power lithium-ion batteries.

Ru0.01Ti0.99Nb2O7 as an intercalation-type anode material with a large capacity and high rate performance for lithium-ion batteries

2015 ◽  
Vol 3 (16) ◽  
pp. 8627-8635 ◽  
Author(s):  
Chunfu Lin ◽  
Shu Yu ◽  
Shunqing Wu ◽  
Shiwei Lin ◽  
Zi-Zhong Zhu ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
Electric Vehicles ◽  
High Power ◽  
Lithium Ion ◽  
High Rate ◽  
Rate Performance ◽  
Power And Energy ◽  
High Rate Performance

Ru0.01Ti0.99Nb2O7, with a much larger capacity than Li4Ti5O12, fulfils the requirements of high power and energy density for electric vehicles.

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