Nonaqueous electrolyte secondary cell
AssigneeSanyo Electric Co., Ltd.
InventorsMasato Iwanaga, Kazuyasu Fujiwara, Ryuji Ohshita, Masayuki Terasaka, Masatoshi Takahashi
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Abstract
The present invention provides a non-aqueous electrolyte secondary cell that has good high-temperature cycle characteristics and good high-temperature standing resistance, and that is highly safe enough to prevent overcharge. The non-aqueous electrolyte secondary cell of the invention utilizes a non-aqueous electrolyte that includes a vinylene carbonate derivative, a cyclic sulfite derivative, and both/either of a phenylcycloalkane derivative and/or an alkylbenzene derivative having a quaternary carbon directly bonded to a benzene ring.
Claims6
A non-aqueous electrolyte secondary cell comprising a positive electrode intercalating and deintercalating lithium ions, a negative electrode intercalating and deintercalating lithium ions, and a non-aqueous electrolyte having a non-aqueous solvent and an electrolyte salt, wherein,
- the non-aqueous electrolyte includes a vinylene carbonate derivative, a cyclic sulfite derivative, and a phenylcycloalkane derivative, or an alkylbenzene derivative having a quaternary carbon directly bonded to a benzene ring.
A non-aqueous electrolyte secondary cell comprising a positive electrode intercalating and deintercalating lithium ions, a negative electrode intercalating and deintercalating lithium ions, and a non-aqueous electrolyte having a non-aqueous solvent and an electrolyte salt, wherein,
- the non-aqueous electrolyte includes a vinylene carbonate derivative, a cyclic sulfite derivative, a phenylcycloalkane derivative, and an alkylbenzene derivative having a quaternary carbon directly bonded to a benzene ring.
Dependencies are inferred from the claim text.