# US 2013/0157142 A1 · Battery core and method of manufacturing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0157142 A1 - Document ID: US20130157142A1 - Status: Published application - Kind: A1 - Application number: 13/596,299 - Filed: 2012-08-28 - Published: 2013-06-20 - Earliest claimed: 2011-12-20 - Assignees: Au Optronics Corporation - Inventors: Ming-Lung CHEN; Chien-Ming CHEN; Ching-Chou YU; Sheng-Fu WEN - Web page: https://patentgrep.com/patent/US20130157142A1 ## CPC - H01M 4/0404: {by coating on electrode collectors} - H01M 10/0431: {Cells with wound or folded electrodes (H01M10/045 takes precedence)} - Y02E 60/10: Energy storage using batteries - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - Y10T 29/49208: by assembling plural parts - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A battery core and a method of manufacturing the same are disclosed herein. The battery core includes a first electrode plate and a second electrode plate. The first electrode plate includes a substrate and a first active material. A first portion of the first active material is formed on a first area of the substrate, and a second portion of the first active material is formed on a second area of the substrate. The second electrode plate includes first and second substrates disconnected from each other, and a second active material. The first and second substrates are positioned corresponding to the first and second first areas respectively. A first portion of the second active material is formed on the first substrate, and a second portion of the second active material is formed on the second substrate. ## Claims ### Claim 1 A battery core comprising: a first electrode plate comprising: a substrate having a first area and a second area; and a first active material having a first portion and a second portion, wherein the first portion of the first active material is formed on the first area, and the second portion of the first active material is formed on the second area; a second electrode plate disposed on one side of the first electrode plate, comprising: a first substrate positioned corresponding to the first area of the first electrode plate; a second substrate positioned corresponding to the second area of the first electrode plate, wherein the first and the second electrode plate are disconnected; and a second active material having a first portion and a second portion, wherein the first portion of the second active material is formed on the first substrate, and the second portion of the second active material is formed on the second substrate; and a first separator disposed between the first and the second electrode plate. ### Claim 2 (depends on 1) The battery core of claim 1, wherein the first electrode plate is a positive electrode plate, the second electrode plate is a negative electrode plate, and an area of the first portion of the first active material is equal to or smaller than an area of the first portion of the second active material, such that the first portion of the second active material can entirely overlay the first portion of the first active material, and an area of the second portion of the first active material is equal to or smaller than an area of the second portion of the second active material, such that the second portion of the second active material can entirely overlay the second portion of the first active material. ### Claim 3 (depends on 2) The battery core of claim 2, further comprising a second separator, wherein the second separator is disposed on one side of the second electrode plate, such that the second electrode plate is disposed between the first separator and the second separator. ### Claim 4 (depends on 1) The battery core of claim 1, wherein the first electrode plate is a negative electrode plate, the second electrode plate is a positive electrode plate, and an area of the first portion of the first active material is equal to or bigger than an area of the first portion of the second active material, such that the first portion of the first active material can entirely overlay the first portion of the second active material, and an area of the second portion of the first active material is equal to or bigger than an area of the second portion of the second active material, such that the second portion of the first active material can entirely overlay the second portion of the second active material. ### Claim 5 (depends on 4) The battery core of claim 4, further comprising a second separator, wherein the second separator is disposed on one side of the first electrode plate, such that the first electrode plate is disposed between the first separator and the second separator. ### Claim 6 (depends on 1) The battery core of claim 1, wherein a thickness of the first portion of the first active material is substantially bigger than a thickness of the second portion of the first active material. ### Claim 7 (depends on 1) The battery core of claim 1, wherein a content ratio of the conducting material of the first portion of the first active material is substantially smaller than a content ratio of the conducting material of the second portion of the first active material. ### Claim 8 (depends on 1) The battery core of claim 1, wherein a thickness of the first portion of the second active material is substantially bigger than a thickness of the second portion of the second active material. ### Claim 9 (depends on 1) The battery core of claim 1, wherein a content ratio of the conducting material of the first portion of the second active material is substantially smaller than a content ratio of the conducting material of the second portion of the second active material. ### Claim 10 (depends on 1) The battery core of claim 1, wherein the first electrode plate further comprises: a first conductive handle disposed on an end of the substrate, wherein the end is close to the first area. ### Claim 11 (depends on 10) The battery core of claim 10, wherein the second electrode plate further comprises: a second conductive handle disposed on an end of the first substrate, wherein the end of the first substrate is close to an end of the second substrate; and another second conductive handle disposed on another end of the second substrate, wherein the second portion of the second active material is located between the two second conductive handles. ### Claim 12 A method of manufacturing a battery core, wherein the method comprises: forming a first electrode plate, comprising: separately forming a first portion of a first active material and a second portion of the first active material on a substrate; forming a second electrode plate, comprising: respectively forming a first portion of a second active material and a second portion of the second active material on a first substrate and a second substrate, wherein the first and the second substrate are continuous; and stacking and then winding the first electrode plate, a first separator, the second electrode plate, and a second separator, wherein the first substrate and the second substrate are disconnected to form the battery core while winding the first electrode plate, the first separator, the second electrode plate, and the second separator. ### Claim 13 (depends on 12) The manufacturing method of claim 12, wherein the step of forming the first electrode plate comprises: transporting the substrate; positioning a mobile coating head over the substrate with a first predetermined interval therebetween, and then coating the second portion of the first active material on the substrate by the mobile coating head; and positioning a fixed coating head over the substrate with a second predetermined interval therebetween, and then coating the first portion of the first active material on the substrate by the mobile coating head, and positioning the mobile coating head over the substrate with an interval substantially larger than the second predetermined interval after the second portion of the first active material is coated. ### Claim 14 (depends on 13) The manufacturing method of claim 13, wherein a content ratio of the conducting material of the first active material in the mobile coating head is substantially larger than a content ratio of the conducting material of the first active material in the fixed coating head. ### Claim 15 (depends on 13) The manufacturing method of claim 13, wherein the first predetermined interval is substantially smaller than the second predetermined interval, such that the second portion of the first active material is substantially thinner than the first portion of the first active material. ### Claim 16 (depends on 12) The manufacturing method of claim 12, wherein the step of forming the first electrode plate comprises: transporting the substrate; positioning a mobile coating head over the substrate with a first predetermined interval therebetween, and then coating the second portion of the first active material on the substrate by the mobile coating head; and positioning the mobile coating head over the substrate with a second predetermined interval therebetween after the second portion of the first active material is coated, and then coating the first portion of the first active material on the substrate by the mobile coating head, wherein the first predetermined interval is substantially smaller than the second predetermined interval. ### Claim 17 (depends on 12) The manufacturing method of claim 12, wherein the step of forming the second electrode plate comprises: transporting the first substrate and the second substrate, wherein the first and the second substrate are continuous; positioning a mobile coating head over the second substrate with a first predetermined interval therebetween, and then coating the second portion of the second active material on the second substrate by the mobile coating head; and positioning a fixed coating head over the first substrate with a second predetermined interval therebetween, and then coating the first portion of the second active material on the first substrate by the mobile coating head, and positioning the mobile coating head over the first substrate with an interval substantially larger than the second predetermined interval after the second portion of the second active material is coated. ### Claim 18 (depends on 17) The manufacturing method of claim 17, wherein a content ratio of the conducting material of the second active material in the mobile coating head is substantially larger than a content ratio of the conducting material of the second active material in the fixed coating head. ### Claim 19 (depends on 17) The manufacturing method of claim 17, wherein the first predetermined interval is substantially smaller than the second predetermined interval, such that the second portion of the second active material is substantially thinner than the first portion of the second active material. ### Claim 20 (depends on 12) The manufacturing method of claim 12, wherein the step of forming the second electrode plate comprises: transporting the first substrate and the second substrate, wherein the first and the second substrate are continuous; positioning a mobile coating head over the second substrate with a first predetermined interval therebetween, and then coating the second portion of the second active material on the second substrate by the mobile coating head; and positioning the mobile coating head over the first substrate with a second predetermined interval therebetween after the second portion of the second active material is coated, and then coating the first portion of the second active material on the first substrate by the mobile coating head, wherein the first predetermined interval is substantially smaller than the second predetermined interval.