欢迎登录材料期刊网

材料期刊网

高级检索

从阳极尺寸和结构设计、阴极被膜工艺改进,分析固体钽电容器的等效串联电阻(ESR)值的影响因素,提出了制造高频、低ESR值固体钽电解电容器的新工艺.投入10V/1001μF、10V/470μF两种规格产品,结果表明:阳极块厚度控制在1.5~2.1mm时,同一规格产品具有最小体积,接触电阻r金更小;在硝酸锰溶液中添加强氧化剂和表面活性荆,制得的MnO2层的r解更低;同时采用多芯并联结构,能使固体钽电解电容器的ESR值降低到通用钽电容器的ESR值的1/3~1/2,且100kHz时电容量变化值小于20%.

参考文献

[1] Bispinck H;Ganschow O;Wie dmann L et al.Combined SIMS,AES,and XPS investigations of tantalum oxide layers[J].Applied Physics,1979,18(02):113.
[2] Lu Q .Anodie film growth on tantalum in dilute phosphoric acid solution at 20℃and 85℃[J].Electrochimica Acta,2002,47(17):2761.
[3] Prymak J D.New tantalum capacitors in power supply applica tions[A].,1998:1129.
[4] Yuan L J;Li Z C et al.Synthesis and characteriz-ation of activated MnO2[J].Materials Letters,2003,57(13-14):1945.
[5] Qu D Y .Application of a.c.impedance technique to the study of the proton diffusion process in the porous MnO2 electrode[J].Electrochimica Acta,2003,48:1675.
[6] Wang Chao;Fang Ling;Zhang Gong.Ⅰ-Ⅴ characteristics of tantalum oxide film and the effect of defects on its electrical properties[J].Thin Solid Films,2004(458):246.
[7] 陆胜,刘仲娥,梁正书,刘凌,阴学清.Ta2O5介质膜性能对液体钽电容器性能的影响[J].压电与声光,2006(04):475-477,480.
[8] Pringle J P S .Transport numbers of metal and oxygen during the anodic oxidation of tantalum[J].Electrochemical Society,1973,120(03):398.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%