公开(公告)号：EP4362143A1

公开(公告)日：2024-05-01

申请号：EP23178073.5

申请日：2023-06-07

申请人： Hunan Province Yinfeng New Energy Co., Ltd

发明人： WU, Xiongwei ,  XIAO, Bo ,  LIU, Jun ,  WU, Xuewen ,  XIE, Xuanzhi ,  YIN, Xingrong ,  ZHANG, Jie

IPC分类号： H01M8/0258 ,  H01M8/0273 ,  H01M8/18 ,  H01M8/2465 ,  H01M8/2475 ,  H01M8/2483 ,  H01M8/0263

CPC分类号： H01M8/188 ,  H01M8/0273 ,  H01M8/2465 ,  H01M8/0263 ,  H01M8/026

摘要： The present disclosure provides a flow battery and a cell stack. The cell stack includes:
a first end plate (11); a second end plate (12); and at least one cell module arranged between the first end plate (11) and the second end plate (12). Each cell module includes a first flow channel end plate (21), a second flow channel end plate (22) arranged opposite to the first flow channel end plate (21), and single-cell assemblies arranged between the first flow channel end plate (21) and the second flow channel end plate (22). The single-cell assemblies include at least three hermetically-assembled cell assemblies, the first flow channel end plate (21) is provided with arch-like flow channels, the second flow channel end plate (22) is provided with arch-like flow channels, and each arch-like flow channel is provided with a flow channel aperture (263) in communication with the at least three hermetically-assembled cell assemblies.

公开(公告)号：EP4354564A1

公开(公告)日：2024-04-17

申请号：EP23178094.1

申请日：2023-06-07

申请人： Hunan Province Yinfeng New Energy Co., Ltd

发明人： WU, Xiongwei ,  XU, Hui ,  XIE, Hao ,  LV, Shanguang ,  WU, Xuewen ,  FU, Na

IPC分类号： H01M8/18

CPC分类号： H01M8/188 ,  H01M2300/000220130101

摘要： The present disclosure provides a vanadium electrolyte, a preparation method and use thereof. The method includes: adding sulfuric acid into vanadium-containing ore, and stirring to obtain a mixture; curing the mixture to obtain a clinker; leaching the clinker with water to obtain a vanadium-containing leaching solution; adding a first impurity-removing agent into the vanadium-containing leaching solution to obtain a first purified solution; adding an oxidizing agent, a ferric phosphate dihydrate seed crystal and a second impurity-removing agent into the first purified solution to obtain a second purified solution; adding a reducing agent and a flocculating agent into the second purified solution, and filtering a resultant solution to obtain a filtered solution; mixing the filtered solution with an extraction liquid to obtain a vanadium-supported organic phase; stripping the vanadium-supported organic phase to obtain a stripping liquid; and removing an organic phase from the stripping liquid to obtain the vanadium electrolyte.