Manufacturing method of all solid state battery
A technology of all-solid batteries and manufacturing methods, which is applied in the direction of electrolyte battery manufacturing, lithium batteries, battery electrodes, etc., can solve the problems of energy density reduction of all-solid batteries, and achieve the effect of restraint pressure suppression
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Embodiment 1～4
[0138]
[0139] The battery stack obtained as described above was sandwiched between two constraining plates serving as constraining members for manufacturing, and then the two constraining plates were fastened to the first constraining pressure shown in Table 1 using a connecting tool to fix the two constraining plates. The distance between the 2 constraint plates.
[0140] Thereafter, the battery stacks of Examples 1 to 4 and Comparative Example restrained by the restraining member for manufacture were charged and discharged for manufacture as follows.
[0141] Charging for manufacturing: Charge to 4.55V at a constant current of 1 / 10C (10 hour rate), and then charge at a constant voltage of 4.55V to a cut-off current of 1 / 100C (100 hour rate).
[0142] Discharge for manufacturing: discharge at a constant current of 1 / 10C (10 hour rate) to 2.5V, and then discharge at a constant voltage of 2.55V to a cut-off current of 1 / 100C (100 hour rate).
[0143] In Table 1, changes in...
Embodiment 5～7
[0168]
[0169] as table 2 and figure 1 As shown, for the battery laminates of Examples 5 to 7, after the charging for manufacturing, the restraint of the restraining member is strengthened, the restraint pressure is changed from the second restraint pressure to the third restraint pressure, and after the discharge for manufacture, Relax the constraint of the constraint part, change the constraint pressure from the 4th constraint pressure to the 5th constraint pressure. In addition, as shown in Table 2 and figure 1 As shown, regarding the battery stack of the comparative example, the restraint pressure of the restraint member was not changed between the second restraint pressure and the third restraint pressure, and the restraint pressure of the restraint member was not changed between the fourth restraint pressure and the fifth restraint pressure change.
[0170] Similar to Examples 1 to 4 and Comparative Example, the relative resistance increase rates of Examples 5 to 7 ...
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