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Ionic liquid-enabled high-energy li-ion batteries

A technology of lithium ions and anions, applied in battery electrodes, secondary batteries, secondary battery repair/maintenance, etc., can solve problems such as thermal instability/safety, insufficient commercial application, etc.

Active Publication Date: 2018-02-27
UNIV OF COLORADO THE REGENTS OF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although improved cycling stability, this technique does not address thermal instability / safety and is insufficient for commercial applications which require high stability after 300 cycles

Method used

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  • Ionic liquid-enabled high-energy li-ion batteries
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  • Ionic liquid-enabled high-energy li-ion batteries

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Embodiment Construction

[0093] In the following description, specific details are provided in order to provide a thorough understanding of various embodiments of the invention. After reading and understanding the specification, claims and drawings, those skilled in the art will understand that some embodiments of the invention may be practiced without some of the specific details set forth herein. Additionally, some well-known methods, procedures, devices, and systems employed in the various embodiments described herein have not been disclosed in detail in order to avoid obscuring the present invention.

[0094] Microcrystalline Silicon (μSi) Anode

[0095] In some embodiments, the improved anode includes micron-sized silicon (μSi) and a self-contained mechanism. The improved anode reversibly cycles micron-sized silicon particles through a self-contained mechanism. For large silicon particles (particles greater than about 150 nanometers in diameter), the particles will be comminuted during the in...

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Abstract

Various embodiments of the present disclosure describe energy storage devices. In one example, an energy storage device includes an anode having a plurality of active material particles, a cathode having a transition metal oxide material, and an electrolyte including a room temperature ionic liquid to couple the anode to the cathode. Each of the plurality of anode active material particles have aparticle size of between about one micrometer and about fifty micrometers. One or more of the plurality of anode active material particles are enclosed by and in contact with a membrane coating permeable to lithium ions.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 62 / 110,286, filed January 30, 2015, and US Provisional Application No. 62 / 151,918, filed April 23, 2015, the entire contents of which are incorporated herein by reference. [0003] Statement Regarding Federally Funded Research [0004] This invention was made with government support under Grant No. DMR 1206462 awarded by the National Science Foundation. The government has certain rights in the invention. technical field [0005] The present disclosure relates to energy storage devices, such as lithium-ion electrochemical cells. More specifically, the present disclosure relates to anodes, cathodes, and electrolytes, alone or in combination, for use in, for example, lithium-ion power storage devices and batteries. Background technique [0006] Rechargeable lithium-ion ("Li-ion") batteries typically use expensive and toxic materials such as cobalt. In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/13H01M4/131H01M4/134H01M4/36H01M4/48H01M4/505H01M4/525H01M10/0525
CPCH01M4/131H01M4/505H01M4/525H01M10/0525H01M4/133H01M4/366H01M4/485H01M10/0568H01M10/0569H01M2300/0045H01M10/448H01M4/134H01M4/386Y02E60/10Y02P70/50H01M4/62H01M10/0567H01M10/44H01M2004/027
Inventor 李世熙丹妮拉·莫琳娜·派珀泰勒·艾文斯
Owner UNIV OF COLORADO THE REGENTS OF
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