Reference

Manganese dioxide

Manganese dioxide. (Mitsui Mining and Smelting Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 58120524 A2 18 Jul 1983 Showa, 3 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C01G045-02. APPLICATION: JP 82-586 7 Jan 1982. DOCUMENT TYPE: Patent CA Section: 52 (Electrochemical, Radiational, and Thermal Energy Technology) Section cross-reference(s): 49 Aq. MnSO4 and (NH4)2CO3 are mixed with moderate stirring at 40-70° to contain Mn ￡5 g/L, and the heavy MnCO3 is calcined at 200-350°. The MnO2 has high bulk d. and is used for dry-cell batteries. Thus, aq. MnSO4 57 g/L was fed into 100 mL aq. (NH4)2CO3 100 g/L at 50 ± 2° to contain 1 ± 0.2 g Mn/L, stirred for 1 h, and the ppt. was filtered, washed, dried, and calcined at 250°.In this experiment, several chemicals are used like 1313-13-9 The bulk d. of obtained MnO2 was 1.3. .

Alkaline cell electrodes

Alkaline cell electrodes. Healy, Gerard M.; Rossler, Eleanor J.; Wiacek, Marion (Duracell International, Inc., USA). Can. CA 1151726 A1 9 Aug 1983, 26 pp. (English). (Canada). CODEN: CAXXA4. CLASS: IC: H01M004-12; H01M006-00. APPLICATION: CA 81-378435 27 May 1981. DOCUMENT TYPE: Patent CA Section: 52 (Electrochemical, Radiational, and Thermal Energy Technology) In an alk. battery having a consumable metal anode, a metal oxide-contg. depolarizer, and an aq. alk. electrolyte, 31 electrode is produced by compaction from a mixt. of electrode-forming compds. An improved electrode mixt. includes a minor quantity of an additive mixt. of silicone polymer oils, metal silicate, an emulsifier, and a liq. aliph. hydrocarbon. Thus, several control and exptl. batteries were made, having identical depolarizer mixt. contg. MnO2 81.5, synthetic graphite 11.6, and KOH soln. 6.9%; exptl. batteries also included 0.Several substances with their cas registry numbers 1313-13-9 and 88201-31-4 may be metioned in this study.42-1.68% silicone emulsion. On subjecting the control and the test batteries to x-ray examn. no apparent difference among the batteries were noted. Several batteries were subjected to continuous discharge through 4.0 W at ~20° to cut-off voltages of 1.0 and 0.8 V. The resp. times taken for the test batteries for such discharge at 1.0 V and 0.8 V were 3.0-3.1 and 4.6-4.7 h vs. 3.1 and 4.6 h for the control batteries. After 1 wk of storage at 71° the resp. times to 0.8 V cut-off for test and control batteries were 3.5-4.1 h and 3.3 h. .