公开(公告)号：US20240243268A1

公开(公告)日：2024-07-18

申请号：US18302052

申请日：2023-04-18

Applicant: National Taiwan University of Science and Technology

Inventor： Bing-Joe Hwang ,  Sheng-Chiang Yang ,  Shi-Kai Jiang ,  Cheng-Cheng Liu ,  Ching-Ying Chen ,  Wei-Nien Su

IPC: H01M4/38 ,  H01M4/587 ,  H01M4/66 ,  H01M10/0562 ,  H01M10/0565 ,  H01M10/44

CPC classification number: H01M4/381 ,  H01M4/587 ,  H01M4/661 ,  H01M10/0562 ,  H01M10/0565 ,  H01M10/446 ,  H01M2004/028

Abstract: The present invention provides a metal and metallic ion mixed battery, which contains a positive electrode, a negative electrode, and an electrolyte, the positive electrode contains a positive electrode material with a metallic component of the battery; It only coats a small amount of negative electrode active materials that can form a metallic ion battery on the negative electrode and makes the negative electrode of the battery included dual advantages of metal and metallic ion battery; when charging, the metallic ions from the positive electrode are embedded in the negative electrode active material to make the battery have the characteristics of a metallic ion battery, and then continue to deposit on the current collector to form a metal battery. After several cycles, the battery can be charged and discharged stably and retains more than 99% of Coulombic efficiency, enhancing the overall energy density of the battery.

公开(公告)号：US12119496B2

公开(公告)日：2024-10-15

申请号：US17386124

申请日：2021-07-27

Applicant: National Taiwan University of Science and Technology

Inventor： Bing-Joe Hwang ,  Wei-Nien Su ,  Shi-Kai Jiang ,  Chen-Jui Huang ,  Sheng-Chiang Yang

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/36 ,  H01M4/40 ,  H01M4/66 ,  H01M10/052

CPC classification number: H01M4/628 ,  H01M4/366 ,  H01M4/405 ,  H01M4/661 ,  H01M10/052 ,  H01M2004/027 ,  H01M4/622 ,  H01M4/625 ,  H01M4/663 ,  H01M4/667 ,  H01M4/668

Abstract: Present invention is related to a composite modified layer attached on a current collector comprising a lithiophilic particle being covered or coated by a polymer layer. The composite modified layer further could be coated with an additional carbon layer or artificial protective film as several suitable embodiments presented in this invention. The lithiophilic particle, such as sliver nano-particle, will firstly form a lithium-silver alloys to reduce a thermodynamic instability during the growth of lithium nuclei. The sliver nano-particle is able to be attached securely on the current collector by the polymer with high adhesion ability. The fuel cell including the composite modified layer in the present invention has higher average Coulombic efficiency and higher capacity retention.

公开(公告)号：US20220077469A1

公开(公告)日：2022-03-10

申请号：US17386124

申请日：2021-07-27

Applicant: National Taiwan University of Science and Technology

Inventor： Bing-Joe Hwang ,  Wei-Nien Su ,  Shi-Kai Jiang ,  Chen-Jui Huang ,  Sheng-Chiang Yang

IPC: H01M4/62 ,  H01M4/36 ,  H01M4/40 ,  H01M4/66 ,  H01M10/052

Abstract: Present invention is related to a composite modified layer attached on a current collector comprising a lithiophilic particle being covered or coated by a polymer layer. The composite modified layer further could be coated with an additional carbon layer or artificial protective film as several suitable embodiments presented in this invention. The lithiophilic particle, such as sliver nano-particle, will firstly form a lithium-silver alloys to reduce a thermodynamic instability during the growth of lithium nuclei. The sliver nano-particle is able to be attached securely on the current collector by the polymer with high adhesion ability. The fuel cell including the composite modified layer in the present invention has higher average Coulombic efficiency and higher capacity retention.

公开(公告)号：US20230207865A1

公开(公告)日：2023-06-29

申请号：US17899703

申请日：2022-08-31

Applicant: National Taiwan University of Science and Technology

Inventor： Bing-Joe Hwang ,  Sheng-Chiang Yang ,  Shi-Kai Jiang ,  Wei-Nien Su

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M10/0525

Abstract: Present invention is related to a method for stabilizing sulfide solid electrolyte having steps of providing a sulfide solid electrolyte, contacting the sulfide solid electrolyte with carbon dioxide gas, and the sulfide solid electrolyte absorbing the CO2 gas. By introducing cost efficient CO2 gas, the sulfide solid electrolyte could have a more stable molecular structure to avoid degradation during long cycle lifetime.

公开(公告)号：US11626582B2

公开(公告)日：2023-04-11

申请号：US16823360

申请日：2020-03-19

Applicant: National Taiwan University of Science and Technology

Inventor： Bing-Joe Hwang ,  Wei-Nien Su ,  Chen-Jui Huang ,  Shi-Kai Jiang

IPC: H01M4/06 ,  H01M6/16 ,  H01M4/505 ,  H01M4/525 ,  H01M4/02

Abstract: The disclosure provides a primary battery and an electrode assembly thereof. The electrode assembly includes a separator, a positive electrode, and a negative electrode current collector. The separator has a positive electrode side and a negative electrode side opposite to each other. The positive electrode is located at the positive electrode side of the separator, and the positive electrode includes a positive electrode current collector and a positive electrode material. The negative electrode current collector is located at the negative electrode side of the separator. The electrode assembly does not include a negative electrode material before charging or activation.

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.

公开(公告)号：US20210057715A1

公开(公告)日：2021-02-25

申请号：US16823360

申请日：2020-03-19

Applicant: National Taiwan University of Science and Technology

Inventor： Bing-Joe Hwang ,  Wei-Nien Su ,  Chen-Jui Huang ,  Shi-Kai Jiang

IPC: H01M4/06 ,  H01M6/16 ,  H01M4/485

Abstract: The disclosure provides a primary battery and an electrode assembly thereof. The electrode assembly includes a separator, a positive electrode, and a negative electrode current collector. The separator has a positive electrode side and a negative electrode side opposite to each other. The positive electrode is located at the positive electrode side of the separator, and the positive electrode includes a positive electrode current collector and a positive electrode material. The negative electrode current collector is located at the negative electrode side of the separator. The electrode assembly does not include a negative electrode material before charging or activation.