一种耐大纹波电流的烧结阳极箔及其制备方法、电解电容器
By employing a quasi-dry pulsed electrostatic powder coating process and vacuum sintering technology, a sintered anode foil with a gradient porosity structure was prepared. This solved the problems of contamination and structural inhomogeneity in the preparation of anode foil for aluminum electrolytic capacitors, and enabled rapid ion transport and thermal management under high-frequency, high-ripple current conditions, thereby improving the capacitor's ripple current resistance and reliability.
CN122000205BActive Publication Date: 2026-07-17NANTONG JIANGHAI CAPACITOR CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANTONG JIANGHAI CAPACITOR CO LTD
- Filing Date
- 2026-04-09
- Publication Date
- 2026-07-17
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Figure SMS_1
Abstract
本发明涉及阳极箔加工技术领域，具体涉及一种耐大纹波电流的烧结阳极箔及其制备方法、电解电容器；包括如下步骤：将铝粉与干粉粘结剂进行干法混合形成复合粉体；预热洁净且表面粗糙化处理的铝基带后，在脉冲静电场作用下将所述复合粉体沉积在所述铝基带表面形成梯度孔隙结构覆层；对具有所述梯度孔隙结构覆层的铝基带进行原位加热预固化，而后进行烧结形成梯度孔隙结构的冶金结合，得到耐大纹波电流的烧结阳极箔；本发明采用准干法脉冲静电覆粉工艺，制备得到具有梯度孔隙结构烧结阳极铝箔，该结构具有快速离子传输与高效热传导的多重效果，将本发明方法所制的阳极箔应用于铝电解电容器，可使电容器具有较好的耐大纹波电流的效果。
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