Ok, I couldn’t find it as part of the official DTHs which means that IKEA hasn’t certified these devices to Work With SmartThings.
However, an external developer made a PR to the SmartThings Public repo where he included code that can help you out:
https://raw.githubusercontent.com/SmartThingsCommunity/SmartThingsPublic/1bb0ace1f198d2da0e4eacec6b7f1b01b60a7ba3/devicetypes/smartthings/zigbee-window-shade-battery.src/zigbee-window-shade-battery.groovy
Do you know how to create a custom DTH in your Groovy IDE?