| 查看: 2884 | 回复: 17 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
[求助]
大家做超级电容器两电极体系测试时的电压降大吗？电压降有多少？
|
|||
| 我的怎么会有0.4或者0.5V那么大？是电池壳的原因嘛？谢谢！大家交流一下 |
回复此楼» 猜你喜欢
Renlab@monash全奖博士机会，最后三天！
已经有0人回复
-
今年面上没有消息，想来是没了，散个金攒攒人品，为明年祈福
已经有698人回复
-
分析化学论文润色/翻译怎么收费?
已经有91人回复
-
合肥工业大学854仪器技术综合专业课考研
已经有0人回复
-
27年电化学博士毕业，想找海外QS前50的高校读博后求推荐
已经有3人回复
-
27年电池/材料类博士申请
已经有2人回复
-
2027年博士申请或转博科研助理 求推荐
已经有1人回复
-
请问谁有2025最新影响因子Excel表？金币求助！
已经有23人回复
-
氯化钠与有机磺酸分离
已经有0人回复
格格11
木虫 (小有名气)
- 应助: 2 (幼儿园)
- 金币: 2895.8
- 红花: 4
- 帖子: 190
- 在线: 186.7小时
- 虫号: 1185764
- 注册: 2011-01-08
- 性别: MM
- 专业: 电化学
|
Conway总结了几大原因：【Journal of Power Sources 135 (2004) 332–343】 (a) Self-discharge at electrodes which have been polarized to overcharge potentials, i.e. beyond potentials corresponding to the thermodynamic decomposition potential of the solution. (b) Self-discharge by parasitic processes involving Faradaic impurity reactions (sometimes redox shuttle processes [2]) that can be cathodic or anodic, and may be diffusion-controlled. (c) Apparent self-discharge, over relatively short times, following interruption of polarizing currents at porous-C electrodes due to non-uniformity of charge acceptance down and amongst pores. This can be experimentally observed and physically simulated in the behavior of hardware, multi-element C/R circuits. (d) A different origin of self-discharge behavior arises at some two-electrode battery configurations where products of charging or corrosion at one electrode become transferred, by diffusion, to the other electrode which then suffers time-dependent depolarization. (e) Finally, a more trivial origin of self-discharge can be short-circuit leakage currents between adjacent cathodes and anodes in imperfectly sealed bipolar electrode configurations. |
13楼2011-07-08 12:02:25
htl1986
金虫 (小有名气)
闪光的锄头
- 应助: 1 (幼儿园)
- 金币: 1505.1
- 散金: 65
- 红花: 2
- 帖子: 220
- 在线: 230.4小时
- 虫号: 946003
- 注册: 2010-01-21
- 性别: GG
- 专业: 电能储存与节电技术
2楼2011-07-07 20:29:01
3楼2011-07-07 20:30:45
5楼2011-07-08 08:44:13
