公开(公告)号：US20230343995A1

公开(公告)日：2023-10-26

申请号：US17890357

申请日：2022-08-18

Applicant: National Taiwan University of Science and Technology

Inventor： Bing-Joe Hwang ,  Sheng-Chiang Yang ,  She-Huang Wu ,  Wei-Nien Su ,  Yosef Nikodimos Asgedom

IPC: H01M10/0562 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M10/0525 ,  H01M2300/0065

Abstract: The present invention provides an additive containing sulfide-based solid electrolyte having an acidic component attached to the sulfide-based solid electrolyte. The sulfide-based solid electrolyte comprises a —PS structure having at least a phosphorous atom and a sulfur atom. The acidic component carries a positive charge which could firmly attach to the sulfur atom of the —PS structure of the sulfide-based solid electrolyte. The present invention utilizes the acidic component as the additive to enhance the water or vapor resistance ability to the sulfide-based solid electrolyte. By using compatible acidic component, the additive could firmly attach to the sulfur atom of the —PS structure of the sulfide-based solid electrolyte but still maintaining in good electrical properties. By enhancing the sulfur atom of the —PS structure of the sulfide-based solid electrolyte, the present invention could benefit the mass production for such material.

公开(公告)号：US20240178444A1

公开(公告)日：2024-05-30

申请号：US18482194

申请日：2023-10-06

Applicant: National Taiwan University of Science and Technology

Inventor： Bing-Joe Hwang ,  Sheng-Chiang Yang ,  Berhanu Degagsa Dandena ,  Wei-Nien Su ,  She-Huang Wu

IPC: H01M10/0562 ,  C01B25/14 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38 ,  H01M10/0585 ,  H01M10/42 ,  H01M10/44 ,  H01M4/02

CPC classification number: H01M10/0562 ,  C01B25/14 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/366 ,  H01M4/382 ,  H01M10/0585 ,  H01M10/4235 ,  H01M10/44 ,  C01P2002/54 ,  C01P2004/03 ,  C01P2006/40 ,  H01M2004/027 ,  H01M2300/008 ,  H01M2300/0094

Abstract: Present invention provides an innovative alloy formation method for a solid state battery and the sold state battery thereof. The said sulfide solid-state electrolyte is doped with anode-philic material to replace the cation ion when synthesizing the sulfide solid-state electrolyte to improve its ionic conductivity but reduce the electronic conductivity avoiding internal electricity leakage. The present invention can also increase the moisture resistance for the sulfide solid-state electrolyte. After performing life cycles, an alloy is formed on an interface of the sulfide solid-state electrolyte which could stabilize and prolongs the life cycles of the full battery.

公开(公告)号：US20240178363A1

公开(公告)日：2024-05-30

申请号：US18172408

申请日：2023-02-22

Applicant: National Taiwan University of Science and Technology

Inventor： Bing-Joe Hwang ,  Sheng-Chiang Yang ,  Semaw Kebede Merso ,  Wei-Nien Su ,  She-Huang Wu

IPC: H01M4/04 ,  H01M4/139

CPC classification number: H01M4/0445 ,  H01M4/139

Abstract: The present invention provides a method for stabilizing an electrode using a functional layer, the electrode and applications thereof, which generates a beneficial electrolyte interface layer on the surface of the negative electrode after charging and discharging, and a protective buffer layer to form an alloy that facilitates the deposition of dense lithium on the negative current collector, significantly extending the life of the battery.

公开(公告)号：US20230100839A1

公开(公告)日：2023-03-30

申请号：US17741594

申请日：2022-05-11

Applicant: National Taiwan University of Science and Technology

Inventor： Bing-Joe Hwang ,  She-Huang Wu ,  Shi-Kai Jiang ,  Wei-Nien Su ,  Jing-Hong Chen ,  Sheng-Chiang Yang

IPC: H01M10/056 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525

Abstract: Present invention is related to a liquid electrolytic medium having non-polar or extreme low polar solvents TTE, FEC, and EMC and a lithium salt with the concentration not exceeding the saturation concentration of the said solvents. The lithium salt in the present invention is preferred to be any lithium salt other than LiPF6. The liquid electrolytic medium of the present invention is compatible with solid state Li batteries using sulfide solid electrolytes and has the abilities to avoid high voltage decomposition during cycle life of the batteries. The liquid electrolytic medium is easy to produce without alternating any existing procedures performed in the factory in the conventional manufacturing process. As introducing the liquid electrolytic medium, the Li batteries still can perform efficiently with high interface conductivity and the sulfide solid electrolyte will not be attacked or damaged by the present invention.