Before revision:  The initial (non-optimized ) prototype cell cannot compete with current LIB in terms of energy density or environmental friendliness , mainly due to the high share of non-active components, decreasing its performance substantially.
After revision:  The initial (non-optimized ) prototype cell cannot compete with current LIB in terms of energy density or environmental performance , mainly due to the high share of non-active components, decreasing its performance substantially.