Electrode for all-solid-state battery, and all-solid-state battery
A technology of all-solid batteries and solid electrolytes, applied in battery electrodes, non-aqueous electrolyte battery electrodes, solid electrolytes, etc., can solve problems such as abnormal heating of organic electrolytes, and achieve excellent load characteristics
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Embodiment 1
[0096]
[0097] First, 0.86 g of lithium and 38.7 g of niobium pentaethoxide were mixed in 394 g of absolute ethanol to prepare a coating solution for forming a reaction suppression layer. Next, using a coating device using a rotating fluidized bed, 1000 g of the positive electrode active material (LiCoO 2 ), the coating solution for forming a reaction suppressing layer was applied at a rate of 2 g per minute. The obtained powder was heat-treated at 350°C to obtain LiNbO-containing 3 The active substance of the reaction inhibition layer.
[0098]
[0099] In an argon atmosphere glove box, lithium sulfide, phosphorus pentasulfide, lithium chloride, and lithium bromide were mixed with an agate mortar for 1 hour. Next, 4 ml of the obtained mixture was put into a closed container made of zirconia with an inner volume of 12 ml, and 4 ml of zirconia beads were further put in, and kneaded for 20 hours under the condition of 380 rpm.
[0100] The resulting mixture was molded in...
Embodiment 2
[0113] Change molding pressure to 6000kgf / cm 2 , except that, it was performed in the same manner as in Example 1 to produce an all-solid-state battery.
Embodiment 3
[0115] Weigh the same composite particles as in Example 1, the same sulfide-based solid electrolyte (1) as the electrolyte prepared in Example 1, and gas-phase method carbon fiber (conduction aid) at a mass ratio of 85:13.5:1.5, using The self-rotating and revolving mixer performs dry mixing to prepare the positive electrode mixture. The content of carbon atoms in the positive electrode mixture molded body at this time was 3.0% by mass. Using this positive electrode mixture, a positive electrode was produced in the same manner as in Example 1, and an all-solid battery was produced in the same manner as in Example 1 except for using this positive electrode.
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Abstract
Description
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Application Information
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