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Active material, electrode, and power storage element
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An active material and conductive polymer technology, applied in electrical components, non-aqueous electrolyte batteries, battery electrodes, etc., can solve problems such as hindering fuel efficiency, and achieve the effect of high energy density and high output characteristics
Inactive Publication Date: 2019-06-28
RICOH KK
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Problems solved by technology
However, the energy density of the aforementioned electric double layer capacitor is several tenths of that of the aforementioned lithium-ion secondary battery, so in order to ensure a sufficient discharge capacity, a heavy power storage element is required, which hinders the installation of the electric double layer capacitor when mounted on a car. Improved fuel efficiency
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Embodiment 1
[0330]
[0331] Prepared as a conductive polymer is a compound example (2) represented by the following formula as a polythiophene derivative, and prepared as a carbon material is porous carbon (porous carbon) having a plurality of fine pores forming a three-dimensional network structure inside. Carbon A) (CNovel: registered trademark, manufactured by Toyo Tan Co., Ltd.). Cross-sectional TEM images of porous carbon A particles as Figure 4 shown. The BET specific surface area of porous carbon A particles is 1,000m 2 / g, the pore volume is 0.6mL / g, and the average diameter of the pores is 3nm.
[0332] Chemical formula 29
[0333]
[0334] Here, n is a natural number of 2 or more.
[0335] Next, porous carbon A and compound (2) were mixed at a mass ratio of 70 / 30, and filled into a vial containing zirconia beads. This was put into a paint shaker (manufactured by Asada Iron Works Co., Ltd.), and shaken for 4 hours. After treatment, the active substance is recovered ...
Embodiment 2
[0382] The non-aqueous electrolyte storage device of Example 3 was produced in the same manner as in Example 1, except that the compound example (2) as the conductive polymer in Example 1 was changed to the compound example (3) represented by the following formula , and evaluated in the same manner as in Example 1. The results are shown in Table 1-1.
[0383] Chemical formula 30
[0384]
[0385] Here, n is a natural number of 2 or more.
Embodiment 3
[0387] The non-aqueous electrolyte storage device of Example 3 was produced in the same manner as in Example 1, except that Compound Example (2) as the conductive polymer in Example 1 was changed to Compound Example (4) represented by the following formula , and evaluated in the same manner as in Example 1. The results are shown in Table 1-1.
[0388] Chemical formula 31
[0389]
[0390] Here, n is a natural number of 2 or more.
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Abstract
The invention provides an active material for use in a power storage element having high energy density and high output characteristics, an electrode and a power storage element. The active material comprises a porous carbon having a plurality of pores forming a three-dimensional network structure and a conductive polymer, and at least a part of the plurality of pores contains the conductive polymer.
Description
technical field [0001] The invention relates to an active material, an electrode and an electric storage element. Background technique [0002] In recent years, the characteristics of electric storage devices that can increase the energy density have been improved and popularized along with the miniaturization and high performance of portable devices. Further, the development of electric storage devices with higher discharge capacity and better safety It is also in progress, and the installation of electric vehicles and the like has begun. Lithium-ion secondary batteries are often used as such power storage elements. [0003] On the other hand, electric double layer capacitors that do not require chemical reactions and can be charged and discharged at high speeds are used as power storage elements in hybrid vehicles and the like. However, the energy density of the aforementioned electric double layer capacitor is several tenths of that of the aforementioned lithium-ion sec...
Claims
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Application Information
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