公开(公告)号：US20160336621A1

公开(公告)日：2016-11-17

申请号：US15109902

申请日：2015-03-06

Applicant: ADEKA CORPORATION

Inventor： Tomofumi YOKOMIZO ,  Toru YANO ,  Hiroaki WATANABE ,  Yohei AOYAMA ,  Tomomi SERI ,  Yuta NOHARA

IPC: H01M10/0567 ,  H01M10/0525

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M2300/0025

Abstract: Provided are a nonaqueous electrolyte excellent in the prevention of overcharge and capable of retaining a small internal resistance and a high electrical capacity even after charge/discharge cycles and a nonaqueous secondary battery using the same. Specifically, the nonaqueous electrolyte is a lithium salt solution in an organic solvent and contains at least one compound having general formula (1), and the nonaqueous secondary battery includes a negative electrode capable of intercalating and deintercalating lithium, a positive electrode containing a transition metal and lithium, and the nonaqueous electrolyte. The details of formula (1) are also provided.

Abstract translation: 本发明提供一种防止过充电且即使在充放电循环后也能够保持小的内电阻和高电容的非水电解质和使用其的非水二次电池。 具体而言，非水电解液是有机溶剂中的锂盐溶液，含有至少一种具有通式（1）的化合物，非水系二次电池具有可插入和脱嵌锂的负极，含有过渡金属的正极 和锂，以及非水电解质。 还提供了公式（1）的细节。

公开(公告)号：US20180226683A1

公开(公告)日：2018-08-09

申请号：US15749513

申请日：2016-09-14

Applicant: ADEKA CORPORATION

Inventor： Yuta NOHARA ,  Kenji KAKIAGE ,  Tomofumi YOKOMIZO ,  Hiroaki WATANABE ,  Yohei AOYAMA ,  Toru YANO

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/42 ,  H01M4/505 ,  H01M4/525 ,  C07F7/18

Abstract: Disclosed is a nonaqueous secondary battery having a nonaqueous electrolyte containing a lithium salt dissolved in an organic solvent, in which the positive electrode active material is preferably a manganese-containing, lithium transition metal oxide salt. The nonaqueous electrolyte contains at least one compound of general formula (1), preferably at least one compound of general formula (1′). The content of the compound of formula (1) or (1′) in the nonaqueous electrolyte is preferably 0.001 to 10 mass %. The symbols in formulae (1) and (1′) are as defined in the description.