Patents by Inventor Tengfei Zhai
Tengfei Zhai 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: 20230291062Abstract: A high-capacity battery comprises an enclosure, a group of battery cells arranged inside the enclosure, and cover plates arranged on two opposite sides of the enclosure. The cover plates serve as positive and negative poles of the battery. The group of battery cells are composed of a plurality of battery cells with similar performance, which are grouped by capacity, voltage, internal resistance, and self-discharge, etc., and connected in shunt, and all battery cells in the group share the same electrolyte system. The pole lugs of the group of battery cells are connected to the cover plates, and the cover plates are connected to the enclosure in an insulated and sealed manner.Type: ApplicationFiled: March 9, 2023Publication date: September 14, 2023Applicant: AMERICA NATIONAL POWER STORAGE LLCInventors: Sanxue ZHANG, Zhengjun LEI, Jian QIANG, Tengfei ZHAI, Xiaoyu HAN
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Publication number: 20230067969Abstract: Disclosed are a high-capacity battery manufacturing method and a high-capacity battery, which mainly solve the problems of poor consistency, unstable performance and poor overall working performance of existing high-capacity lithium batteries. The method comprises: assembling coiled or laminated units that make up high-capacity battery cells into battery cells individually, carrying out formation and capacity grading of the battery cells, grouping the battery cells according to one or more of their capacity, internal resistance, voltage and self-discharge, connecting the battery cells in the same group in shunt, loading the battery cells in the same group into a high-capacity battery pack, and then carrying out secondary electrolyte injection, sealing, aging and capacity grading of the high-capacity battery pack. According to the present application, battery cell formation and capacity grading are carried out after primary electrolyte injection.Type: ApplicationFiled: August 30, 2022Publication date: March 2, 2023Applicant: AMERICA NATIONAL POWER STORAGE LLCInventors: Tengfei ZHAI, Zhengjun LEI, Sanxue ZHANG, Gaofeng ZHENG, Yi LIU
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Patent number: 9636533Abstract: A metal-carbonyl-containing fire extinguishing composition comprises metal carbonyl complexes. The fire extinguishing composition uses a pyrotechnic agent as a heat source and a power source. A high temperature in combustion of the pyrotechnic agent enables the fire extinguishing composition to decompose or react under heat; produced fire extinguishing substances are sprayed out together with the pyrotechnic agent, thereby achieving a fire extinguishing objective. In the fire extinguishing composition, by selecting preferable components and optimizing contents of the components, an optimum formula of the fire extinguishing composition is determined, thereby greatly improving the efficacy of the fire extinguishing composition. In addition, efficacies of the components in the fire extinguishing composition are fully utilized, which improves an effective utilization rate of the fire extinguishing composition.Type: GrantFiled: August 16, 2012Date of Patent: May 2, 2017Assignee: XI'AN WESTPACE FIRE TECHNOLOGY CO., LTDInventors: Wei Tian, Tengfei Zhai, Tao Ji
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Publication number: 20170043196Abstract: The present invention relates to a fire-extinguishing composition containing a heterocyclic compound. The fire-extinguishing composition releases a great quantity of active fire-extinguishing particles by making use of the heat generated from combustion of a pyrotechnic agent. The fire-extinguishing composition containing a heterocyclic compound in the present invention reacts at a high temperature to generate free radicals and takes reaction with one or more of O—, OH—, H— free radicals necessary for a chain combustion reaction through the free radicals, so as to cut off the chain combustion reaction and take physical and chemical inhibiting effects to jointly achieve a fire extinguishing effect at the same time. Meanwhile, it takes synergistic interaction effects with the pyrotechnic agent to further raise the fire extinguishing efficiency of the fire extinguishing agent and greatly shorten the effective fire extinguishing time.Type: ApplicationFiled: March 11, 2015Publication date: February 16, 2017Inventors: Hao Wu, Tengfei Zhai, Gaofeng Zheng, Zhengjun Lei, Zhanjun Yang
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Publication number: 20140332709Abstract: A metal-carbonyl-containing fire extinguishing composition comprises metal carbonyl complexes. The fire extinguishing composition uses a pyrotechnic agent as a heat source and a power source. A high temperature in combustion of the pyrotechnic agent enables the fire extinguishing composition to decompose or react under heat; produced fire extinguishing substances are sprayed out together with the pyrotechnic agent, thereby achieving a fire extinguishing objective. In the fire extinguishing composition, by selecting preferable components and optimizing contents of the components, an optimum formula of the fire extinguishing composition is determined, thereby greatly improving the efficacy of the fire extinguishing composition. In addition, efficacies of the components in the fire extinguishing composition are fully utilized, which improves an effective utilization rate of the fire extinguishing composition.Type: ApplicationFiled: August 16, 2012Publication date: November 13, 2014Applicant: Xi'an J&R Fire Fighting Equipment Co., LtdInventors: Wei Tian, Tengfei Zhai, Tao Ji
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Patent number: 8800676Abstract: The present invention relates to a novel hand-held aerosol fire suppression apparatus, comprising thermal insulating layer (3), inner cylinder (4), aerosol generating agent (5), heat insulating material (6), jet nozzle (9), tapered jet orifice (10), enclosure (11), ignition head (12) and piezoelectric crystal assembly (13), wherein the thermal insulating layer (3) is arranged between the inner cylinder (4) and the aerosol generating agent (5), and the jet nozzle (9) is screwed to the enclosure (11) by means of a thread structure that comprises 3˜6 thread segments. Compared to that in the prior art, with the segment thread design for screwing the jet nozzle to the enclosure, the time required for removing the jet nozzle can be reduced significantly, and therefore the apparatus in the present invention has much better safety feature against accidents.Type: GrantFiled: July 3, 2010Date of Patent: August 12, 2014Assignee: Shaanxi J & R Fire Fighting Co., Ltd.Inventors: Hongbao Guo, Kun Zhang, Chunjie Ma, Tengfei Zhai, Zhenping Deng
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Publication number: 20120279733Abstract: The present invention relates to a novel hand-held aerosol fire suppression apparatus, comprising thermal insulating layer (3), inner cylinder (4), aerosol generating agent (5), heat insulating material (6), jet nozzle (9), tapered jet orifice (10), enclosure (11), ignition head (12) and piezoelectric crystal assembly (13), wherein the thermal insulating layer (3) is arranged between the inner cylinder (4) and the aerosol generating agent (5), and the jet nozzle (9) is screwed to the enclosure (11) by means of a thread structure that comprises 3˜6 thread segments. Compared to that in the prior art, with the segment thread design for screwing the jet nozzle to the enclosure, the time required for removing the jet nozzle can be reduced significantly, and therefore the apparatus in the present invention has much better safety feature against accidents.Type: ApplicationFiled: July 3, 2010Publication date: November 8, 2012Applicant: SHAANXI J & R FIRE FIGHTING CO., LTD.Inventors: Hongbao Guo, Kun Zhang, Chunjie Ma, Tengfei Zhai, Zhenping Deng
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Publication number: 20120067599Abstract: The present invention relates to a mini-type automatic aerosol fire suppression apparatus, comprising top cap (1), thermal insulating layer (3), inner cylinder (4), outer cylinder (5), bottom cap (7), sensing element (8), screen (9) and igniter (11), wherein a chemical agent (6) and a cooling layer (10) are installed in the inner cylinder (4), the thermal insulating layer (3) is installed between the inner cylinder (4) and the outer cylinder (5), and the sensing element (8) is designed to sense fire. The volume of the apparatus is not greater than 0.05 m3. Compared to that in the prior art, the apparatus is delicate and easy to install, and is suitable for quick local fire suppression, and can get twice the result with half the effort in such applications.Type: ApplicationFiled: June 6, 2010Publication date: March 22, 2012Applicant: SHAANXI J & R FIRE FIGHTING CO., LTD.Inventors: Hongbao Guo, Weipeng Zhang, Zanfeng Zhang, Zhenping Deng, Qian Liu, Tengfei Zhai, Sanxue Zhang, Guoxing Zhang, Kun Zhang