メカニカルミリングしたSb添加鉛電池正極活物質PbO_2の微細組織とその放電特性
スポンサーリンク
概要
- 論文の詳細を見る
PbO2 powder, which is active positive-electrode material in the lead-acid battery, was mechanically milled with Sb2O3 powder. It is well known that Sb contained in the grid of the lead-acid battery is useful for the protection of the premature capacity loss. The results of the X-ray diffraction and EPMA (Electron Probe Micro Analyzer) showed that the alloying between PbO2 and Sb2O3 proceeded during the milling process. The position of the reduction peak in the CV (Cyclic Voltammetry) curve shifted to the lower potential and the intensity of the reduction peak increased with an increase of the scanning speed of the potential. The intensity of the reduction peak in the CV curve for the electrode constructed from PbO2 powder added with Sb2O3 was much reduced compared to that for the electrode constructed from PbO2 powder. The result of EPMA showed that the reduction reaction from PbO2 to PbSO4 proceeded more rapidly in the electrode constructed from PbO2 powder added with Sb2O3, and that Sb was not detected in PbSO4 particles. The above phenomena observed in the electrode constructed from PbO2 powder added with Sb2O3 seem to be concerned with the protection of the premature capacity loss of the lead-acid battery.
- 社団法人粉体粉末冶金協会の論文
- 2007-07-15
著者
-
田中 敏宏
大阪大学大学院工学研究科マテリアル生産科学専攻
-
勝山 茂
京大理
-
勝山 茂
大阪大学大学院工学研究科マテリアル応用工学専攻
-
平井 信充
大阪大学大学院工学研究科
-
林 礼明
大阪大学大学院工学研究科マテリアル生産科学専攻
-
田中 敏宏
大阪大学大学院工学研究科
-
田中 敏宏
Department Of Materials And Manufacturing Science Graduate School Of Engineering Osaka University
-
勝山 茂
大阪大学大学院工学研究科マテリアル生産科学専攻
-
平井 信充
Department Of Materials And Manufacturing Science Graduate School Of Engineering Osaka University
-
林 礼明
大阪大学大学院
-
田中 敏宏
大阪大 大学院工学研究科
-
Katsuyama S
Department Of Material Science And Engineering Faculty Of Engineering Osaka University
関連論文
- 溶融合金・イオン性融体・溶融酸化物の表面張力の推算(結晶成長を支える高温熱物性計測技術の進展)
- 高温融体物性入門(1)高温融体の表面張力
- 溶融鉄合金・溶融スラグの表面張力・粘度の推算
- 31p-PS-32 YB_2(Cu_Fe_x)_3O_y系の_μSR
- MAによる微粒子分散コンポジット熱電変換材料の開発
- Microstructure and Thermoelectric Properties of NaxCo2O4 Synthesized by Spark Plasma Sintering (特集 熱電変換材料)
- Effect of Partical Substitution of 3d Transition Metals for Co on the Thermoelectric Properties of Na_xCo_2O_4
- Preparation of SiC Dispersed Fe_Co_Si_2 by Pressureless Sintering with Cu and Si Addition and Its Thermoelectric Performance
- スラブ連続鋳造用旋回流浸漬ノズルの開発(鋳造・凝固)
- 高温融体物性論の立場から見た高効率反応プロセス