Lenovo Thinkpad New X1 Carbon?

I recently bought a used Lenovo Thinkpad New X1 Carbon. Unfortunately, the battery is no longer the best and I think maybe to buy a new one. However, I do not know what generation it is and on the Internet, I find virtually no information about the device. Could you possibly help with this?

Link to the dealer page: https://www.lapstore.de/a.php/shop/lapstore/lang/de/a/32855/kw/Lenovo-ThinkPad-New-X1-Carbon-20A8S01900-2-Wahl

I looked and found this battery.

https://www.amazon.de/...B01FEI2WF8

If you find the name 3460 somewhere on your battery then this is exactly the right one.

Thanks Oliver!

Do you know if it causes problems when using a battery with a higher capacity than the original battery?

For example, Here

https://www.ebay.de/...2364136731