NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

A non-aqueous electrolyte secondary including a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a negative electrode active material capable of electrochemically absorbing and releasing lithium, and a binder. The negative electrode active material includes a Si-containing material, and the binder includes at least one cellulose compound selected from the group consisting of a carboxyalkyl cellulose and a salt thereof. The electrolyte includes a non-aqueous solvent, and a lithium salt dissolved in the non-aqueous solvent. The lithium salt includes lithium bis(fluorosulfonyl)imide: LFSI.