Wei Li appeals SA jail sentence

An Adelaide law student convicted of bashing and strangling his abusive mother has launched another bid to appeal his sentence.

Wei Li, 23, was jailed for nine years after being found guilty by a Supreme Court jury of the manslaughter of 41-year-old Emma Tien at the family's Burnside home in 2011.

Li's barrister, Kevin Borick QC, told the full court of the SA Court of Criminal Appeal on Wednesday that the sentencing judge had overreached by making findings beyond reasonable doubt.

The court will decide whether to grant Li permission to appeal at a later date.