To provide a lithium ion secondary battery high in discharge capacity and excellent in capacity retention ratio, and a method for manufacturing the lithium ion secondary battery.
A lithium ion secondary battery at least includes: a negative electrode including a carbon material 100; a gel electrolyte; and a positive electrode. The carbon material 100 has a hollow structure involving mutually connected pores, where a void 102 comprising a plurality of connected pores penetrates in the thickness direction, and contains metal 103 capable of forming an alloy with lithium, inside of the void. A method for manufacturing the lithium ion secondary battery at least includes: a first step of impregnating the carbon material 100 with a nonaqueous electrolyte; and a second step of arranging the gel electrolyte between the negative electrode and the positive electrode after the first step.
KONNO YOSHIHARU
| JP2000138057A | 2000-05-16 | |||
| JP2004331982A | 2004-11-25 | |||
| JPH07240233A | 1995-09-12 | |||
| JP2002025618A | 2002-01-25 | |||
| JP2000067851A | 2000-03-03 | |||
| JP2003022840A | 2003-01-24 |
| WO2010074243A1 | 2010-07-01 |
Ryuichiro Mori
Makiko Otsuki
Toyoyama Ogi