Non-sintered electrode and method of manufacturing same
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHiroshi Kawano, Yoshio Moriwaki, Isao Matsumoto
Life of this patent
Estimating the term…
Abstract
A metal sheet (1) which constitutes a non-sintered type electrode support is processed to have minute irregularities on its surface. The irregularities are formed by a mechanical method such that protrusions (9) and indentations (8) are configured with a center-to-center pitch (P) in the range of from 50 to 300 μm and such that the apparent thickness after processing is at least three times as large as the unprocessed material thickness.
Claims21
A non-sintered type electrode comprising an electrode support made of a metal sheet having minute surface irregularities on which is coated or pressed an active material for battery or an active material retaining medium,
- said surface irregularities are formed by a mechanical method such that protrusions and indentations are configured with a center-to-center pitch (P) in the range of from 50 to 300 μm, and such that the apparent thickness of the electrode support after forming the surface irregularities is at least three times as large as the thickness before the formation of the surface irregularities.
A method of manufacturing a non-sintered type electrode comprising forming minute irregularities on the surface of a metal sheet by press-machining using metal molds such that protrusions and indentations are configured with a center-to-center pitch (P) in the range of from 50 to 300 μm and such that the apparent thickness of the metal sheet after forming the surface irregularities is at least three times as large as the thickness before the formation of the surface irregularities, thereby fabricating an electrode support, and an active material for battery or an active material retaining medium is coated or pressed on the surface of the thus obtained electrode support.
Dependencies are inferred from the claim text.