Patents by Inventor Dar-Jen LIU
Dar-Jen LIU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240145697Abstract: A multi-layer cathode coating for positive electrode of a rechargeable electrochemical cell (or secondary cell) (such as a lithium-ion secondary battery) and a secondary battery including a cathode having a multi-layer cathode coating. Multi-layer cathode coatings containing blends of one or more cathode active materials in certain weight ratios thereof.Type: ApplicationFiled: October 27, 2022Publication date: May 2, 2024Applicant: SAFT AMERICAInventors: Xilin Chen, Frank Cao, Carine Margez Steinway, Kamen Nechev, Shih-Chieh Liao, Chia-Ming Chang, Dar-Jen Liu
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Patent number: 11228028Abstract: A cathode of a lithium ion battery is provided. The cathode of a lithium ion battery includes a collector material. A first electrode layer including a lithium manganese iron phosphate (LMFP) material is disposed on a surface of the collector material. A second electrode layer including an active material is disposed on the first electrode layer. The active material includes lithium nickel manganese cobalt oxide (NMC), lithium nickel cobalt aluminum oxide (NCA), lithium cobalt oxide (LCO), Li-rich cathode material, or a combination thereof.Type: GrantFiled: December 24, 2018Date of Patent: January 18, 2022Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chia-Ming Chang, Shih-Chieh Liao, Dar-Jen Liu, Wen-Bing Chu, Jin-Ming Chen
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Patent number: 10428246Abstract: An adhesive composition is provided. The adhesive composition includes 3˜10 parts by weight of polyvinylidene fluoride (PVDF), wherein the polyvinylidene fluoride includes two polyvinylidene fluorides with different weight average molecular weights ranging from 20000 to 3000000, and at least one of the polyvinylidene fluorides has a carboxyl group; 0.1-0.5 parts by weight of polyvinyl butyral (PVB); and 0.1-3 parts by weight of a conductive powder.Type: GrantFiled: February 23, 2018Date of Patent: October 1, 2019Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yi-Hsin Yuan, Wen-Bing Chu, Chang-Hsing Lu, Dar-Jen Liu
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Publication number: 20190198864Abstract: A cathode of a lithium ion battery is provided. The cathode of a lithium ion battery includes a collector material. A first electrode layer including a lithium manganese iron phosphate (LMFP) material is disposed on a surface of the collector material. A second electrode layer including an active material is disposed on the first electrode layer. The active material includes lithium nickel manganese cobalt oxide (NMC), lithium nickel cobalt aluminum oxide (NCA), lithium cobalt oxide (LCO), Li-rich cathode material, or a combination thereof.Type: ApplicationFiled: March 30, 2018Publication date: June 27, 2019Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chia-Ming CHANG, Shih-Chieh LIAO, Dar-Jen LIU, Wen-Bing CHU, Jin-Ming CHEN
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Publication number: 20190198867Abstract: A cathode of a lithium ion battery is provided. The cathode of a lithium ion battery includes a collector material. A first electrode layer including a lithium manganese iron phosphate (LMFP) material is disposed on a surface of the collector material. A second electrode layer including an active material is disposed on the first electrode layer. The active material includes lithium nickel manganese cobalt oxide (NMC), lithium nickel cobalt aluminum oxide (NCA), lithium cobalt oxide (LCO), Li-rich cathode material, or a combination thereof.Type: ApplicationFiled: December 24, 2018Publication date: June 27, 2019Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chia-Ming CHANG, Shih-Chieh LIAO, Dar-Jen LIU, Wen-Bing CHU, Jin-Ming CHEN
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Publication number: 20190185723Abstract: An adhesive composition is provided. The adhesive composition includes 3˜10 parts by weight of polyvinylidene fluoride (PVDF), wherein the polyvinylidene fluoride includes two polyvinylidene fluorides with different weight average molecular weights ranging from 20000 to 3000000, and at least one of the polyvinylidene fluorides has a carboxyl group; 0.1-0.5 parts by weight of polyvinyl butyral (PVB); and 0.1-3 parts by weight of a conductive powder.Type: ApplicationFiled: February 23, 2018Publication date: June 20, 2019Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yi-Hsin YUAN, Wen-Bing CHU, Chang-Hsing LU, Dar-Jen LIU
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Publication number: 20170040603Abstract: An electrode structure of a lithium ion battery includes a current collector, at least one energy active layer, and at least one power active layer. The energy active layer is formed on the current collector and the power active layer is formed on the energy active layer. The energy active layer includes a first lithium-containing compound and multiple first conductive particles. The power active layer includes a second lithium-containing compound and multiple second conductive particles. The first lithium-containing compound includes lithium manganese cobalt nickel oxide (LiMnxCoyNizO2), where 0<x, y, z<1. The second lithium-containing compound includes lithium manganese oxide (LiMn2O4). A weight ratio of the first conductive particles to the energy active layer is greater than a weight ratio of the second conductive particles to the power active layer. A lithium ion diffusion coefficient of the second lithium-containing compound is greater than that of the first lithium-containing compound.Type: ApplicationFiled: October 21, 2016Publication date: February 9, 2017Inventors: Wen-Bing CHU, Dar-Jen LIU, Chen-Chung CHEN, Li-Chun CHEN, Shih-Tswen TSENG, Shu-Heng WEN, Cheng-Rung YANG
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Publication number: 20140178753Abstract: A lithium ion battery and an electrode structure thereof are provided. The electrode structure at least includes a current collecting substrate, an electrode active material layer on the current collecting substrate, and a complex thermo-sensitive coating layer sandwiched in between the current collecting substrate and the electrode active material layer. The complex thermo-sensitive coating layer at least contains two or more of PTC (positive temperature coefficient) materials so as to have adjustable stepped resistivity according to temperature rise.Type: ApplicationFiled: May 2, 2013Publication date: June 26, 2014Applicant: Industrial Technology Research InstituteInventors: Wen-Bing Chu, Ming-Yi Lu, Guan-Lin Lai, Cheng-Jien Peng, Tzu-Chi Chou, Dar-Jen Liu, Chang-Rung Yang
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Publication number: 20140162118Abstract: An electrode structure of a lithium ion battery includes a current collector, at least one energy type active layer, and at least one power type active layer. The energy type active layer and the power type active layer are formed on the current collector. The energy type active layer includes a first lithium-containing compound and multiple first conductive particles. The power type active layer includes a second lithium-containing compound and multiple second conductive particles. The first and second lithium-containing compounds are lithium-containing complex transitional metal oxides. Compositions of the first and second lithium-containing compounds include at least one of Ni, Co and Mn. A lithium ion diffusion coefficient of the second lithium-containing compound is greater than that of the first lithium-containing compound. A specific capacity of the first lithium-containing compound is greater than that of the second lithium-containing compound.Type: ApplicationFiled: July 3, 2013Publication date: June 12, 2014Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Wen-Bing CHU, Dar-Jen LIU, Chen-Chung CHEN, Li-Chun CHEN, Shih-Tswen TSENG, Shu-Heng WEN, Chang-Rung YANG