Are there thermo bottles to store tea, as soon as it is made (100ºC/212ºF)?
You don't need anything special for that. I have often made tea in a regular thermo bottle, with no adverse effects on the bottle. It does help that it keeps the tea hot. So the fancy one you linked is probably OK too. 

If you want a lighter bottle, you can see if a glass bottle doesn't weigh less, although a thermo bottle from thin stainless steel isn't that heavy compared to glass. Glass should withstand boiling water without breaking, if the bottle isn't too thick and hasn't been held in a very cold place (room temperature is OK). It still can shatter, so you should probably take precautions (pour over the sink), although the chance is very low. 

A typical softdrink bottle shouldn't be reused for tea, even if it doesn't melt outright it is likely to get very soft, etc. But some plastic bottles will be OK with hot liquids, for example Nalgenes should do the job. They have the advantage of being wide-mouthed (it is very hard to clean a glass lemonade bottle because of its narrow mouth). 

You can go to the local hiking store and see what they have, and whether you like it more or less than a thermo bottle (and they will have thermo bottles too). Their bottles are optimized for easy caring, and some come optionally with a neopren sleeve to keep the temperature longer.