Wearable device having flexible battery

Patent metadata

Field	Value
Publication number	US-2017005504-A1
Application number	US-201415105233-A
Country	US
Kind code	A1
Filing date	Dec 29, 2014
Priority date	Dec 27, 2013
Publication date	Jan 5, 2017
Grant date	—

Abstract

Provided is a wearable device having a flexible battery, and the wearable device includes: a functional unit; a band unit that fixes the functional unit to a wrist of a user; and a thin plate flexible battery that is embedded in the band unit and supplies power to the functional unit.

First claim

1 . A wearable device having a flexible battery, the wearable device comprising:
a functional unit; a band unit that fixes the functional unit to a wrist of a user; and a thin plate flexible battery that is embedded in the band unit and supplies power to the functional unit.

2 . The wearable device having a flexible battery of claim 1 , wherein the flexible battery comprises: an electrode assembly including a positive electrode, a negative electrode, and a separator; an electrolyte; and a packaging member that seals the electrode assembly and the electrolyte, wherein the packaging member is configured by sequentially laminating a heat-sealable layer and a protective layer outwardly from an inner side of the packaging member.

3 . The wearable device having a flexible battery of claim 2 , wherein the packaging member further comprises a strength reinforcing layer bonded to the protective layer under the adhesion of an adhesive layer.

4 . The wearable device having a flexible battery of claim 2 , wherein the protective layer is one of PTFE (polytetrafluororthylene), nylon, PP (polypropylene), PET (polyethylene terephthalate), PVDC (polyvinylidene chloride), PE (polyethylene), PVC (polyvinyl chloride), and EVOH (ethylene vinyl alcohol).

5 . The wearable device having a flexible battery of claim 2 , wherein the heat-sealable layer is a single layer structure of one of CPP (casting polypropylene), LLDPE (linear low density polyethylene), LDPE (low density polyethylene), HDPE (high density polyethylene), polyethylene, polyethylene terephthalate, polypropylene, EVA (ethylene vinyl acetate), an epoxy resin, and a phenol resin, or a laminate structure thereof.

6 . The wearable device having a flexible battery of claim 3 , wherein the strength reinforcing layer is PET.

7 . The wearable device having a flexible battery of claim 1 , wherein the flexible battery is insert molded and built in the band unit.

8 . The wearable device having a flexible battery of claim 1 , wherein the functional unit is a smart watch that performs a camera function, a voice command and memo function, a music function, a clock function, and functions such as texts and phone calls, in connection with a smart phone.

9 . The wearable device having a flexible battery of claim 1 , wherein a main battery is configured to be mounted in the functional unit, and the flexible battery is configured to be used as a secondary battery to charge the main battery.

10 . The wearable device having a flexible battery of claim 1 , wherein a positive terminal and a negative terminal of the flexible battery are protruded as male terminals at the end of the band unit, and female terminals to be coupled to the male terminals are formed in the functional unit.

11 . The wearable device having a flexible battery of claim 1 , further comprising: a connector that is connected to a positive terminal and a negative terminal of the flexible battery, and that is projected into one end of the band unit; and a socket into which the connector is inserted and which is formed in the functional unit to be electrically connected with the connector.

12 . The wearable device having a flexible battery of claim 1 , further comprising: a connector that is connected to a positive terminal and a negative terminal of the flexible battery, and that is projected into the other end of the band unit in which one end of the band unit is fixed to one end of the functional unit; and a socket into which the connector is inserted and which is formed in the functional unit to be electrically connected with the connector.

13 . The wearable device having a flexible battery of claim 11 , wherein the connector is used as a charging terminal for charging the flexible battery.

14 . The wearable device having a flexible battery of claim 1 , wherein a wireless power receiving antenna device is mounted in the flexible battery or the band unit in order to charge the flexible battery in a wireless charging method.

15 . The wearable device having a flexible battery of claim 2 , wherein the electrode assembly comprises:
a positive electrode including a first porous substrate in which a metal is coated on a plurality of pores and an active material slurry containing a positive electrode active material is injected into the plurality of pores, a first conductive adhesive layer formed on the first porous substrate, and a first conductive metal layer formed on the first conductive adhesive layer; a negative electrode including a second porous substrate in which a metal is coated on a plurality of pores and an active material slurry containing a negative electrode active material is injected into the plurality of pores, a second conductive adhesive layer formed on the second porous substrate, and a second conductive metal layer formed on the second conductive adhesive layer; and a porous separator for separating the positive electrode and the negative electrode.

16 . The wearable device having a flexible battery of claim 2 , wherein the electrolyte is a gel polymer electrolyte or a solid electrolyte that is formed by impregnating an organic electrolyte solution into the separator, in which the organic electrolyte solution is formed by mixing a gel polymer forming monomer and a polymerization initiator, and synthesizing a gel-type gel polymer by polymerization of a monomer through a gelation heat-treatment process.

17 . The wearable device having a flexible battery of claim 2 , wherein the separator comprises:
a porous nonwoven fabric playing a role of a support; and a porous polymer web layer or a non-pore polymer film layer that is laminated on one side of the porous nonwoven fabric and playing a role of an adhesive layer and an ion moisture-containing layer when the porous polymer web layer or non-pore polymer film layer is in close contact with the electrodes facing the porous polymer web layer or non-pore polymer film layer.

18 . The wearable device having a flexible battery of claim 15 , wherein the active material slurry comprises PTFE (polytetrafluoroethylene).

19 . The wearable device having a flexible battery of claim 1 , wherein a recess for detachably fixing the functional unit is formed in the band unit.

20 . The wearable device having a flexible battery of claim 19 , wherein the functional unit may be attached to and detached from the recess formed the band unit in an up-and-down (or vertical) direction or in a sliding manner.

Assignees

• Amogreentech Co Ltd

Inventors

• Rho Seung Yun
• Choi Won Gil
• Nam Ji Hyun

Classifications

• H02J7/751

  concerning the insertion or the connection of the batteries · CPC title

• H01M50/211

  adapted for pouch cells · CPC title

• G04G17/06

  Electric connectors, e.g. conductive elastomers · CPC title

• G06F1/163

  Wearable computers, e.g. on a belt · CPC title

• G04G19/00

  Electric power supply circuits specially adapted for use in electronic time-pieces · CPC title