Non-aqueous lithium type storage element
A storage element, non-aqueous technology, applied in the field of non-aqueous lithium-type storage elements, can solve the problems of output characteristics and durability, limit the depth of discharge and other problems
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Embodiment 1
[0496] [Preparation of Activated Carbon]
[0497] [Activated carbon 1]
[0498] Put the crushed coconut shell carbides into a small carbonization furnace, and carry out carbonization treatment at 500°C for 3 hours under nitrogen atmosphere to obtain carbides. Put the obtained carbide into the activation furnace, introduce the water vapor heated by the preheating furnace into the activation furnace at 1kg / h, and raise the temperature to 900°C in 8 hours for activation. The activated carbide was taken out and cooled under a nitrogen atmosphere to obtain activated activated carbon. The obtained activated activated carbon was washed with water for 10 hours to remove water, dried in an electric dryer maintained at 115° C. for 10 hours, and pulverized by a ball mill for 1 hour to obtain activated carbon 1 .
[0499]The average particle diameter of the activated carbon 1 was measured using a laser diffraction particle size distribution analyzer (SALD-2000J) manufactured by Shimadzu...
preparation example
[0511] The average particle size is 3.0μm, the BET specific surface area is 1,780m 2 150 g of commercially available coconut shell activated carbon per g is packed into a stainless steel mesh cage, placed on a stainless steel pan that has been added with 270 g of coal-based pitch 1 (softening point: 50° C.), and the two are arranged in an electric furnace (effective in the furnace) In a size of 300 mm×300 mm×300 mm), a thermal reaction was performed to obtain a composite carbon material 1 . This heat treatment was carried out in a nitrogen atmosphere, the temperature was raised to 600° C. over 8 hours, and the temperature was maintained at the same temperature for 4 hours. Next, after cooling to 60° C. by natural cooling, the composite carbon material 1 was taken out from the furnace.
[0512] For the obtained composite carbon material 1, the average particle diameter and the BET specific surface area were measured by the same method as above. As a result, the average partic...
Embodiment 2～17 and comparative example 1～4
[0574]A positive electrode precursor was prepared in the same manner as in Example 1 except that the positive electrode active material, lithium compound and their average particle diameter, and the mass parts of the positive electrode active material and lithium compound were shown in Table 2 below. Except having used these positive electrode precursors and the negative electrode shown in Table 2 in combination, it carried out similarly to Example 1, produced the non-aqueous lithium type electric storage element, and evaluated it. The results are shown in Table 2 below.
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