公开(公告)号：US12191448B2

公开(公告)日：2025-01-07

申请号：US16065721

申请日：2016-12-22

Applicant: STELLA CHEMIFA CORPORATION

Inventor： Toshitaka Sakaguchi ,  Yoshifumi Katsura ,  Sojiro Kon ,  Masashi Yamamoto ,  Tetsuo Nishida

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0568

Abstract: Provided are a nonaqueous electrolytic solution for a secondary battery that exhibits excellent cycle characteristics even in high temperature environment, and a secondary battery including the same. The nonaqueous electrolytic solution for a secondary battery of the present invention is a nonaqueous electrolyte solution for a secondary battery which is used for a secondary battery, including at least one component (A) represented by the following chemical formula (1): in which Mn+ represents at least one selected from the group consisting of a hydrogen ion, an alkali metal ion, an alkaline earth metal ion, an aluminum ion, a transition metal ion and an onium ion, X represents a halogen atom, R1 represents a hydrocarbon group having 1 to 20 carbon atoms, or a hydrocarbon group having 1 to 20 carbon atoms and having at least any one of a halogen atom, a heteroatom or an unsaturated bond, and n represents a valence.

公开(公告)号：US10938066B2

公开(公告)日：2021-03-02

申请号：US15118827

申请日：2015-02-16

Applicant: STELLA CHEMIFA CORPORATION

Inventor： Toshitaka Sakaguchi ,  Yoshifumi Katsura ,  Tetsuo Nishida

IPC: H01M10/0567 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/054

Abstract: A phosphodiester salt is added to the electrolytic solution to form a nonaqueous electrolytic solution for a secondary battery. The nonaqueous electrolytic solution has excellent storage characteristics in a temperature load environment. Deterioration of the charge-discharge characteristics of the nonaqueous electrolytic solution and increase in internal resistance of the nonaqueous electrolytic solution are suppressed during storage. A secondary battery having a positive electrode and a negative electrode makes use of this electrolytic solution.

公开(公告)号：US11180515B2

公开(公告)日：2021-11-23

申请号：US17010611

申请日：2020-09-02

Applicant: STELLA CHEMIFA CORPORATION

Inventor： Toshitaka Sakaguchi ,  Sojiro Kon ,  Yoshifumi Katsura ,  Masashi Yamamoto ,  Tetsuo Nishida

IPC: C07F9/11 ,  H01M10/054 ,  H01M10/0567 ,  C07F9/09 ,  H01M10/052 ,  H01G11/64 ,  H01M10/0568 ,  C07F9/12 ,  C07H15/252 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0569

Abstract: A non-aqueous electrolytic solution includes a phosphoric acid diester salt, which can suppress deterioration of charge-discharge characteristics of a power storage element, and can suppress the rise in internal resistance after storage at high temperature. The phosphoric acid diester salt is represented by the following chemical formula (1): in which Mn+ represents a hydrogen ion, an alkali metal ion, an alkali earth metal ion, an aluminum ion, a transition metal ion, or an onium ion, R1 and R2 are different from each other and represent a hydrocarbon group having 1 to 10 carbon atoms, or a hydrocarbon group having 1 to 10 carbon atoms and having at least one of a halogen atom, a heteroatom, and an unsaturated bond, and n represents a valence.

公开(公告)号：US11005125B2

公开(公告)日：2021-05-11

申请号：US15548639

申请日：2016-01-21

Applicant: STELLA CHEMIFA CORPORATION

Inventor： Toshitaka Sakaguchi ,  Sojiro Kon ,  Yoshifumi Katsura ,  Tetsuo Nishida

IPC: H01M10/0567 ,  H01M10/052 ,  C07F9/09 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/42

Abstract: A nonaqueous electrolytic solution for a secondary battery exhibits excellent cycle characteristics even in high-temperature environments. The solution includes at least one of boric acid esters, acid anhydrides, cyclic carbonates having an unsaturated bond, cyclic carbonates having a halogen atom, cyclic sulfonic acid esters, and amines having an acetoacetyl group. A secondary battery having a positive electrode and a negative electrode makes use of this electrolytic solution.

公开(公告)号：US10793585B2

公开(公告)日：2020-10-06

申请号：US15751841

申请日：2016-08-09

Applicant: STELLA CHEMIFA CORPORATION

Inventor： Toshitaka Sakaguchi ,  Sojiro Kon ,  Yoshifumi Katsura ,  Masashi Yamamoto ,  Tetsuo Nishida

IPC: C07F9/11 ,  H01M10/054 ,  H01M10/0567 ,  C07F9/09 ,  H01M10/052 ,  H01G11/64 ,  H01M10/0568 ,  C07F9/12 ,  C07H15/252 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0569

Abstract: Disclosed is a phosphoric acid diester salt which can suppress deterioration of charge-discharge characteristics of a power storage element, and can suppress the rise in internal resistance after storage at high temperature, a production method therefor, a non-aqueous electrolytic solution for a power storage element, and a power storage element. Disclosed is a phosphoric acid diester salt represented by the following chemical formula (1): wherein Mn+ represents a hydrogen ion, an alkali metal ion, an alkali earth metal ion, an aluminum ion, a transition metal ion, or an onium ion; R1 and R2 are different from each other and represent a hydrocarbon group having 1 to 10 carbon atoms, or a hydrocarbon group having 1 to 10 carbon atoms and having at least one of a halogen atom, a heteroatom, and an unsaturated bond; and n represents a valence.