公开(公告)号：US20230335770A1

公开(公告)日：2023-10-19

申请号：US17721509

申请日：2022-04-15

申请人： RAYTHEON TECHNOLOGIES CORPORATION

发明人： Timothy C. Davenport ,  James Demetrios Saraidaridis

IPC分类号： H01M8/18 ,  G01R31/382 ,  G01R31/378 ,  G01N21/65 ,  H01M8/0444 ,  H01M8/04186

CPC分类号： H01M8/188 ,  G01R31/382 ,  G01R31/378 ,  G01N21/65 ,  H01M8/04477 ,  H01M8/04186

摘要： A redox flow battery includes a cell that has first and second electrodes and an ion-exchange layer there between, first and second circulation loops that are fluidly connected with, respectively, the first and second electrodes, first and second electrolyte storage tanks in, respectively, the first and second circulation loops, first and second electrolytes contained in, respectively, the first and second circulation loops, and a Raman spectrometer on at least one of the first or second circulation loops for determining a state-of-charge of at least one of the first or second electrolytes. The Raman spectrometer includes a laser source that is rated to emit a laser of a wavelength of 694 nanometers to 1444 nanometers.