The tv has a hdmi mhl input port. I don't know the nature of the micro usb port(mhl or slim port) of the phone. What kind of cable and/or adopter I should purchase?
Welcome to Android Central! Lenovo doesn't appear to support MHL: MHL® – Devices. I also don't see any of their devices on the Slimport site (the other HDMI adapter standard): SlimPort supported devices. Your best bet is to get a Chromecast for wireless mirroring.