AAVE does not have a vocabulary separate from other varieties of English. However AAVE speakers do use some words which are not found in other varieties and furthermore use some English words in ways that differ from the standard dialects.
A number of words used in standard English may also have their origin in AAVE or at least in the West African languages that contributed to AAVE's development. These include:
banana (Mandingo)
yam (Mandingo)
okra (Akan)
gumbo (Western Bantu)
A discussion of AAVE vocabulary might proceed by noting that words can be seen to be composed of a form (a sound signal) and a meaning. In some cases both the form and the meaning are taken from West African sources. In other case the form is from English but the meaning appears to be derived from West African sources. Some cases are ambiguous and seem to involve what the late Fredric Cassidy called a multiple etymology (the form can be traced to more than one language -- e.g. "cat" below).