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All-solid state li ion batteries comprising mechanically flexible ceramic electrolytes and manufacturing methods for the same

By using mechanically flexible ceramic solid-state electrolyte and freeze-casting technology of nanoparticle slurry in Li-ion batteries, the existing battery's difficulties in balancing energy density, cycle life and safety are solved, and efficient and safe battery performance is achieved.

Inactive Publication Date: 2019-08-02
FISKER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Li metal anodes offer extremely high energy density, 3860 mAh / g; however, safety and cyclability remain limiting factors, both of which must be addressed for their utilization in any practical system

Method used

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  • All-solid state li ion batteries comprising mechanically flexible ceramic electrolytes and manufacturing methods for the same
  • All-solid state li ion batteries comprising mechanically flexible ceramic electrolytes and manufacturing methods for the same
  • All-solid state li ion batteries comprising mechanically flexible ceramic electrolytes and manufacturing methods for the same

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Embodiment Construction

[0058] Disclosed herein is an all-solid-state mechanically flexible Li-ion battery (LIB) with a mechanically flexible solid-state ceramic electrolyte formed by preparing a nanoparticle slurry of ceramic ultra-high-speed ionic conductors in accordance with the present disclosure, and freeze casting the slurry or casting, and preferably combined with sintering. The nanoparticle slurry is formed into a thin film by casting, preferably followed by sintering at temperatures below 1100°C, and then the structure in the LIB is further formed. Their conductivity at operating temperature is preferably similar to that of liquid electrolytes, i.e., 10 -6 -1 S cm -1 , and the activation energy is less than 0.6 eV.

[0059] Disclosed herein is an all-solid-state mechanically flexible LIB comprising a ceramic solid-state electrolyte comprising lithium selected from the group consisting of perovskite-type oxides, NASICON-structured lithium electrolytes, and transition metal oxide-containing...

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Abstract

An all solid-state Li-ion battery having a mechanically flexible, ceramic, solid-state electrolyte having a lithium-conducting oxide composition selected from the group consisting of perovskite-type oxides, NASICON-structured lithium electrolytes, and garnet-type structures containing transition metal oxides. In particular, the garnet cubic lithiumlanthanium zirconium oxide (c-LLZO), c-LLZO-LSPO composite and varous lithium ion conducting sulfides are disclosed.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of US Provisional Patent Application 62 / 419,423, filed November 8, 2016, which is incorporated herein by reference. technical field [0003] The present invention relates to all-solid-state Li-ion batteries ("LIBs") comprising mechanically flexible ceramic solid-state electrolytes and methods for their manufacture. Background technique [0004] An electric vehicle (EV) battery pack performs the same function as the fuel tank in a conventional vehicle; it stores the energy needed to run the vehicle. Battery packs typically contain 10 to 52 individual 6-volt, 8-volt or 12-volt batteries similar to the starter batteries used in gasoline vehicles. The energy stored in the fuel tank allows the vehicle to travel 300 to 500 miles before refilling; current generation batteries provide only 50 to 200 miles of capacity in economy vehicles and up to 335 miles in expensive large luxury vehicles....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M10/056H01M10/0562H01M10/0587
CPCH01M10/0525H01M10/056H01M10/0562H01M10/0587Y02E60/10Y02P70/50C04B35/01C04B35/58C04B35/447C04B35/488C04B35/486C04B2235/768H01M2300/0068H01M2300/0071B01J6/008C01B25/003C01D15/02H01M4/0471H01M4/131H01M4/1391H01M10/0565Y02T10/70
Inventor F·阿尔巴诺
Owner FISKER INC
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