Nonaqueous electrolytic solution for lithium secondary battery or lithium ion capacitor, and lithium secondary battery or lithium ion capacitor using the same
A non-aqueous electrolyte, lithium secondary battery technology, applied in non-aqueous electrolyte storage batteries, hybrid capacitor electrolytes, secondary batteries, etc., can solve problems such as non-aqueous electrolyte solidification, achieve low freezing point, high conductivity, excellent Effects of Features
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Embodiment 1～14、 comparative example 1～8
[0136] [Measurement of physical properties of non-aqueous electrolyte]
[0137]
[0138] The flash point of the non-aqueous electrolyte solution described in Table 1 and Table 2 was measured based on the standard of JISK-2265 using a Tag closed-type flash point tester (manufactured by Tanaka Scientific Instruments Co., Ltd.; model ATG-7).
[0139]
[0140] The freezing point of the nonaqueous electrolyte solution described in Table 1 and Table 2 was measured based on the standard of JIS K-0065 using an automatic freezing point meter (manufactured by Electrochemistry Systems Co., Ltd.; model CP-2BX).
[0141]
[0142] The electrical conductivity of the non-aqueous electrolyte solutions described in Tables 1 and 2 was measured in an environment of 25° C. using a conductivity meter (manufactured by DKK-TOA CORPORATION; model CM-30R).
[0143] Each physical property value is shown in Tables 1-2.
[0144] [Production of lithium ion secondary battery]
[0145] LiNi 0.5 Mn ...
Embodiment 15～25、 and comparative example 9～16
[0161] [Production of Lithium Ion Capacitors]
[0162] The specific surface area is 600 ~ 3000m 2 Activated carbon powder / g: 92 mass %, acetylene black (conductive agent): 5 mass %, mixed and added to 1-methyl-2-pyrrolidone previously dissolved in polyvinylidene fluoride (binder): 3 mass % The obtained solution was mixed with each other to prepare a positive electrode mixture paste. This positive electrode mixture paste was applied on one side of an aluminum foil (current collector), dried and subjected to pressure treatment, and then cut into a predetermined size to prepare a positive electrode sheet. In addition, artificial graphite (d 002 =0.335nm, negative electrode active material) 95% by mass was added to a solution obtained by dissolving 5% by mass of polyvinylidene fluoride (binder) in 1-methyl-2-pyrrolidone in advance, and mixed to prepare a negative electrode mixture Paste. This negative electrode mixture paste was applied on one side of a copper foil (current co...
Embodiment 26～33、 comparative example 17～24
[0180] [Measurement of physical properties of non-aqueous electrolyte]
[0181]
[0182] The flash point of the non-aqueous electrolyte solution described in Table 4 and Table 5 was measured based on the standard of JISK-2265 using a Tag closed-type flash point tester (manufactured by Tanaka Scientific Instruments Co., Ltd.; model ATG-7).
[0183]
[0184] The freezing point of the nonaqueous electrolyte solution described in Table 4 and Table 5 was measured based on the standard of JIS K-0065 using an automatic freezing point meter (manufactured by Electrochemistry Systems Co., Ltd.; model CP-2BX).
[0185]
[0186] The electrical conductivity of the non-aqueous electrolyte solutions described in Tables 4 and 5 was measured in an environment of 25° C. using a conductivity meter (manufactured by DKK-TOA CORPORATION; model number CM-30R).
[0187] Each physical property value is shown in Tables 4-5.
[0188] [Production of lithium ion secondary battery]
[0189] LiNi 0...
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