Terminal-equipped electric wire

1. A terminal-equipped electric wire comprising:

an electric wire that includes a conductor;

a terminal connected to the conductor; and

a shell attached to the terminal,

wherein the terminal includes a grip portion that pinches the conductor,

the shell includes a pressing portion that is configured to press at least a portion of the grip portion in an inward direction toward the conductor by sandwiching the grip portion between opposing sides of the pressing portion,

the grip portion and the conductor are joined with an alloy layer, and

the alloy layer contains a Cu—Sn alloy.

2. The terminal-equipped electric wire according to claim 1 ,

wherein the Cu—Sn alloy is Cu 6 Sn 5 .

3. The terminal-equipped electric wire according to claim 1 ,

wherein the alloy layer contains a Sn—Ni alloy.

4. The terminal-equipped electric wire according to claim 3 ,

wherein the Sn—Ni alloy is Ni 3 Sn 4 .

5. The terminal-equipped electric wire according to claim 1 ,

wherein the conductor is a single-core wire.

6. The terminal-equipped electric wire according to claim 1 ,

wherein the conductor is made of a Cu—Sn alloy or a Cu—Ag alloy.

7. The terminal-equipped electric wire according to claim 1 ,

wherein the shell includes:

a tubular portion in which the grip portion is housed; and

the pressing portion formed in the tubular portion.

8. The terminal-equipped electric wire according to claim 7 ,

wherein the grip portion includes a first plate-like piece and a second plate-like piece that are opposed to each other with the conductor being located therebetween,

the pressing portion includes a first protruding portion and a second protruding portion that protrude toward an inner side of the tubular portion,

the first protruding portion presses the first plate-like piece toward the second plate-like piece, and

the second protruding portion presses the second plate-like piece toward the first plate-like piece.