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14 条记录 (耗时 0.02 秒)

    FAST FORMATION CYCLING FOR RECHARGEABLE BATTERIES
    6.
    发明申请
    FAST FORMATION CYCLING FOR RECHARGEABLE BATTERIES 有权

    公开(公告)号：US20210143391A1

    公开(公告)日：2021-05-13

    申请号：US17149660

    申请日：2021-01-14

    申请人： UT-BATTELLE, LLC

    发明人： David L. Wood, III ,  Jianlin Li ,  Seong Jin An

    IPC分类号： H01M4/04 ,  H02J7/00 ,  H01M10/0525 ,  H01M4/587 ,  H01M4/505 ,  H01M4/525 ,  H01M10/44

    摘要： A method for fast formation cycling for rechargeable batteries comprising the steps of: step 1 (First Partial Charge)—charge cell from open-circuit voltage (OVC) up to 80-90% of an upper cutoff voltage (UCV) of from 4-5 V at a C rate not less than 0.5 and not more than 1.5; step 2 (First Shallow Charge)—charge cell from 80-90% of UCV to 97-100% of UCV at a C rate of not less than 0.2 and not more than 0.5; step 3 (First Shallow Discharge)—discharge cell from 97-100% of UCV to 80-90% of UCV at a C rate of not less than 0.2 and not more than 0.5; and step 4 (Subsequent Charge/Discharge Cycles)—repeat steps 2-3 up to 2-10 times where the charging and discharging rates are progressively increased by 25-75%. A battery made according to the method of the invention is also disclosed.

    Manufacturing of thick composite electrode using solvent mixtures
    7.
    发明授权
    Manufacturing of thick composite electrode using solvent mixtures 有权

    公开(公告)号：US10601027B2

    公开(公告)日：2020-03-24

    申请号：US15965242

    申请日：2018-04-27

    申请人： UT-BATTELLE, LLC

    发明人： Zhijia Du ,  Claus Daniel ,  Jianlin Li ,  David L. Wood, III

    IPC分类号： H01M4/04 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/62 ,  H01M4/02

    摘要： A method of making an electrode includes the step of dispersing an active electrode material and a conductive additive in a solvent to create a mixed dispersion. The solvent has a surface tension less than 40 mN/m and an ozone forming potential of no more than 1.5 lbs. ozone/lb. solvent. A surface of a current collector is treated to raise the surface energy of the surface to at least the surface tension of the solvent or the mixed dispersion. The dispersed active electrode material and conductive additive are deposited on the current collector. The coated surface is heated to remove solvent from the coating.

    Method and apparatus for in-situ drying investigation and optimization of slurry drying methodology
    8.
    发明授权
    Method and apparatus for in-situ drying investigation and optimization of slurry drying methodology 有权
    泥浆干燥方法的原位干燥研究和优化方法和装置

    公开(公告)号：US09337470B2

    公开(公告)日：2016-05-10

    申请号：US13656020

    申请日：2012-10-19

    申请人： UT-BATTELLE, LLC

    发明人： Beth L. Armstrong ,  Claus Daniel ,  Jane Y. Howe ,  James O. Kiggans, Jr. ,  Adrian S. Sabau ,  David L. Wood, III ,  Sergiy Kalnaus

    IPC分类号： B05D3/02 ,  B05D3/06 ,  H01M4/04

    CPC分类号： H01M4/04 ,  H01M4/0435 ,  H01M4/0471 ,  H01M4/0485

    摘要： A method of drying casted slurries that includes calculating drying conditions from an experimental model for a cast slurry and forming a cast film. An infrared heating probe is positioned on one side of the casted slurry and a thermal probe is positioned on an opposing side of the casted slurry. The infrared heating probe may control the temperature of the casted slurry during drying. The casted slurry may be observed with an optical microscope, while applying the drying conditions from the experimental model. Observing the casted slurry includes detecting the incidence of micro-structural changes in the casted slurry during drying to determine if the drying conditions from the experimental model are optimal.

    摘要翻译： 干燥铸造浆料的方法，包括从铸造浆料的实验模型计算干燥条件并形成流延膜。 红外加热探针位于铸浆的一侧，热探针位于铸浆的相对侧。 红外加热探头可以控制干燥过程中浇铸浆液的温度。 浇铸的浆料可以用光学显微镜观察，同时应用实验模型的干燥条件。 观察铸造浆料包括在干燥期间检测铸浆中的微观结构变化的发生率，以确定来自实验模型的干燥条件是否是最佳的。