ted:
That is your theory, I am talking about practice, battery ever exploded when I charge it by 1/10 of it capacity ......
You're still not saying anything about what battery chemistry you're talking about? Or how long you're applying this charging current. Or do you mean ALL battery chemistries? And at any length of time? And, when you say this, are you discounting quality of charge? Sure, you can get away with charging a "battery" with C/10, but there are a lot of things that escape an empirical examination.
And, the things I said about proper charging procedure, come from battery manufacturer recommendations, and from engineering documents. You can base your designs on empirical "data" alone, but, eventually, you're gonna pay the price.