| abstract |
A binder made of a mixture of a first binder component including styrene butadiene copolymer containing styrene at between 20% and 70%, and a second binder component selected from at least one of styrene butadiene copolymer containing styrene at between 80% and 100% and polystyrene is used for the negative electrode of rechargeable batteries comprising a carbon material and the binder. The use of the negative electrode comprising the carbon material and binder results in good resistance to peeling of a coated film, and thus ease of handling of a negative electrode sheet. Consequently, rechargeable batteries with good low-temperature discharge characteristics are supplied at good yield. |