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公开(公告)号：US20240347776A1
公开(公告)日：2024-10-17
申请号：US18755332
申请日：2024-06-26
发明人： Hansen WANG , Chengyong LIU , Zhangdi Xie , Shengyuan Huang , Bobing Hu
IPC分类号： H01M10/0569 , H01M10/0567 , H01M10/0568
CPC分类号： H01M10/0569 , H01M10/0567 , H01M10/0568 , H01M2300/0034 , H01M2300/0037
摘要： Provided is an electrolyte, including a first solvent represented by formula I and a second solvent selected from one or more of formula II and formula III, where R1 is selected from C1-C6 fluoroalkyl; R2 is selected from a hydrogen atom, C1-C6 alkyl or C1-C6 fluoroalkyl; n represents 1 or 2; and R3 to R10 are each independently selected from a hydrogen atom, a fluorine atom, C1-C6 alkyl, or C1-C6 fluoroalkyl. The electrolyte of the disclosure can improve cycle stability and safety of the battery. A secondary battery including the electrolyte, a battery module, a battery pack, and an electrical device are also disclosed.
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公开(公告)号：US20240234818A1
公开(公告)日：2024-07-11
申请号：US18589233
申请日：2024-02-27
发明人： Hansen WANG , Chengyong LIU , Shengyuan HUANG , Xian HUANG , Wenwen XUE
IPC分类号： H01M10/0569 , C07D307/04 , C07D307/10 , C07D317/16 , C07D319/06 , H01M10/0567 , H01M10/0568
CPC分类号： H01M10/0569 , C07D307/04 , C07D307/10 , C07D317/16 , C07D319/06 , H01M10/0567 , H01M10/0568 , H01M2220/20 , H01M2300/0034 , H01M2300/0037
摘要： An electrolyte containing a solvent including at least one compounds of formula I, wherein A1 is an oxygen atom or a single bond, A2 is a single bond or CHR4, R1 and R2 are each independently a hydrogen atom, C1-6 alkyls or a C1-6 fluoroalkyls, R3 and R4 are each independently a hydrogen atom, a fluorine atom, C1-6 alkyls or C1-6 fluoroalkyls, A1 and A2 cannot both be single bonds simultaneously, and only one of R1 to R4 includes a fluorine atom is described. The electrolyte can make a metal negative electrode secondary battery have good cycling performance and good discharge capacity retention at low temperature.
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