Apparatus and method of manufacturing electrodes, and battery
A manufacturing method and electrode technology, applied in electrode manufacturing, electrode collector coating, non-aqueous electrolyte storage battery, etc., can solve the problems of reduced heat dissipation, inability to fully utilize, and reduced safety
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[0085] [Preliminary experiment 1]
reference example 1
[0087] After applying the first layer of positive electrode active material slurry on both sides of the aluminum foil as the positive electrode current collector by the doctor blade method, except for drying the slurry, a battery was fabricated in the same manner as in the best mode for carrying out the above-mentioned invention. .
[0088] The battery thus fabricated is hereinafter referred to as a reference battery Q1.
reference example 2
[0090] Batteries were produced in the same manner as in Reference Example 1 above, except that the positive electrode active material layer had a one-layer structure instead of a two-layer structure (a mixture of LCO and LFP was used as the positive electrode active material).
[0091] The battery produced in this way is hereinafter referred to as a reference battery Q2.
[0092] (experiment)
[0093] Table 1 shows the results of investigations on the overcharge characteristics of the above-mentioned reference batteries Q1 and Q2. In addition, the experimental conditions are the following conditions: set 750mA as 1.0It, set the overcharge current to 1.0It, 2.0It, 3.0It, 4.0It respectively, and use the time when the battery voltage reaches 12V to charge at a constant voltage (there is no current lower limit ) circuit, after reaching 12V, conduct a charging test until 3 hours have elapsed.
[0094] In addition, in ordinary batteries (battery packs), protection elements such as...
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