Solid electrolyte composition, all-solid-state secondary battery sheet, all-solid-state secondary battery electrode sheet, all-solid-state secondary battery, production method for all-solid-state secondary battery sheet, and production method for all-solid-state secondary battery
A solid electrolyte and secondary battery technology, applied in solid electrolyte, non-aqueous electrolyte storage battery, battery electrode, etc., can solve the problem of organic electrolyte liquid leakage, etc., achieve the effect of suppressing the increase of interface impedance and excellent battery performance
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[0269] (Preparation of solid electrolyte composition)
[0270] The solid electrolyte composition of the present invention is prepared by mixing, for example, an inorganic solid electrolyte, binder particles, dispersion medium, and other components as necessary, using various mixers, preferably as a slurry.
[0271] The mixing method is not particularly limited, and may be mixed together or sequentially.
[0272] The mixer is not particularly limited, and examples thereof include ball mills, bead mills, planetary mixers, paddle mixers, roll mills, kneaders, and disk mills. The mixing conditions are not particularly limited. For example, the mixing temperature is set at 10-60° C., the mixing time is set at 5 minutes to 5 hours, and the rotation speed is set at 10-700 rpm (rotation per minute (rotation per minute)). When a ball mill is used as a mixer, it is preferable to set the rotation speed to 150 to 700 rpm and the mixing time to 5 minutes to 24 hours at the above mixing te...
Embodiment 1
[0339] In Example 1, a sheet for an all-solid secondary battery was produced and its performance was evaluated. The results are shown in Tables 1-3.
[0340]
[0341] (Preparation of binder particle dispersion P-1 composed of (meth)acrylic resin)
[0342] 420 parts by mass of heptane and 45 parts by mass of lauryl methacrylate (manufactured by Wako Pure Chemical Industries, Ltd.) were added to a 1 L three-necked flask with a reflux condenser and a gas introduction valve, and the flow rate was 200 mL / min. The temperature was raised to 80°C 10 minutes after introducing nitrogen gas. A liquid prepared in another container (9 parts by mass of hydroxyethyl acrylate (manufactured by Wako Pure Chemical Industries, Ltd.), 117 parts by mass of methyl methacrylate (manufactured by Wako Pure Chemical Industries, Ltd.), 9 parts by mass of methacrylic acid (manufactured by Wako Pure Chemical Industries, Ltd.), and 7.2 parts by mass of radical polymerization initiator V-601 (trade name,...
Embodiment 2
[0454] In Example 2, making a figure 1 The layer structure shown in the figure 2 The all-solid-state secondary battery is shown, and its battery performance is evaluated. The results are shown in Table 4.
[0455]
[0456] In the same manner as the above-mentioned of Example 1, the negative electrode sheet A-1 for all-solid secondary batteries produced in Example 1 was tested for 3 times. After the bending test of a 10 mm mandrel, the solid electrolyte composition S-1 prepared in Example 1 was coated on the negative electrode active material layer using the above-mentioned baking applicator, and after heating at 80° C. for 1 hour , and further heated at 110° C. for 6 hours to dry the solid electrolyte composition S-1. Negative electrode sheet A-1 with a solid electrolyte layer (coated dry layer) formed on the negative electrode active material layer was heated (120° C.) using a hot press (30 MPa, 1 minute) to produce a solid Negative electrode sheet of laminated struct...
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Abstract
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