In 1991, the Sony Corporation commercialized the first lithium-ion rechargeable battery in Tokyo, Japan. Developed by a team led by Akira Yoshino, the lithium-ion battery used lithium cobalt oxide as the positive electrode and a carbon material as the negative electrode, offering far greater energy density and lighter weight than previous rechargeable batteries. Introduced in Sony's camcorders in Tokyo, this battery type would eventually power virtually all portable electronic devices, from laptops to smartphones, transforming the relationship between electrical energy and daily life.

The lithium-ion battery's liberation of electronic devices from wall sockets enabled new forms of literary production and consumption. Poets could now write on laptops in any location, readers could carry entire libraries on e-readers, and poetry could be recorded and shared on battery-powered smartphones. This technological democratization of literary production paralleled and enabled the rise of online poetry communities, social media poetry, and the digital literary culture that has fundamentally transformed how poetry is written, published, and read in the twenty-first century.