Air electrode for metal-air battery
一种金属空气电池、空气极的技术，应用在电池电极、电池组零部件、电路等方向，能够解决致密质陶瓷用作隔板、电解液劣化、正极短路等问题
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example 1
[0072] (1) Fabrication of the air electrode layer
[0073] α-MnO as an air electrode catalyst is produced as follows 2 particle. First, the Mn(SO 4 )·5H 2 O and KMnO 4 Dissolve in deionized water at a molar ratio of 5:13 and mix. The obtained mixed solution was placed in a stainless steel airtight container with Teflon (registered trademark) stuck inside, and hydrothermal synthesis was performed at 140° C. for 2 hours. The precipitate obtained by hydrothermal synthesis was filtered, washed with distilled water, and dried at 80° C. for 6 hours. α-MnO 2 of powder.
[0074] Layered double hydroxide particles (hereinafter referred to as LDH particles) which are hydroxide ion conductive materials were produced as follows. First, the Ni(NO 3 ) 2 ·6H 2 O and Fe(NO 3 ) 3 9H 2 O was dissolved in deionized water at a molar ratio of Ni:Fe=3:1 and mixed. The resulting mixture was added dropwise to 0.3M Na 2 CO 3 in solution. At this time, the pH of the mixed solution was a...
example 2
[0085] Example 2 (Compare)
[0086] Without using hydroxide ion-conducting particles, weigh α-MnO according to the mixing ratio shown in the "First air electrode layer" column of Table 1 2 The preparation and evaluation of the air electrode were carried out in the same manner as in Example 1, except that the particles and carbon black were used, and the thickness of the air electrode layer was set to the value shown in Table 1. The results are shown in Table 1.
example 3
[0088] Weigh α-MnO according to the mixing ratio shown in the "first air electrode layer" column of Table 1 2 Except for the particles, LDH particles, and carbon black, a fibrillar composition for the first air electrode layer was obtained in the same manner as in Example 1. In addition, weigh α-MnO according to the mixing ratio shown in the "second air electrode layer" column of Table 1 2 Except for the particles, LDH particles, and carbon black, a fibrillar mixture for the second air electrode layer was obtained in the same manner as in Example 1. The fibrillar mixture for the second air electrode layer and the fibrillar mixture for the first air electrode layer were sequentially bonded to a current collector (carbon cloth (manufactured by ElectroChem Co., Ltd., Model No. On EC-CC1-060T)), a laminated sheet of the first air electrode layer / second air electrode layer / current collector was obtained. Production and evaluation of an air electrode were performed in the same man...
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