A super Lie algebra over a field is a Lie algebra internal to the symmetric monoidal -linear category SVect of super vector spaces.
Just as Lie algebras are categorified to L-infinity algebras and L-infinity algebroids, so super Lie algebras categorifie to super L-infinity algebra?s. A secretly famous example is the
One of the original references (or the original reference?) is
A useful survey with more pointers to the literature is
Another useful survey is
D. Leites, Lie superalgebras, J. Soviet Math. 30 (1985), 2481–2512 (web)
M. Scheunert, The theory of Lie superalgebras. An introduction, Lect. Notes Math. 716 (1979)