US 12,431,528 B2
Rechargeable battery with voltage activated current interrupter
Jiang Fan, San Diego, CA (US)
Assigned to American Lithium Energy Corporation, Carlsbad, CA (US)
Filed by American Lithium Energy Corporation, Carlsbad, CA (US)
Filed on Jun. 24, 2020, as Appl. No. 16/910,584.
Application 16/910,584 is a continuation of application No. 16/003,960, filed on Jun. 8, 2018, granted, now 10,734,633.
Application 16/003,960 is a continuation of application No. 14/952,762, filed on Nov. 25, 2015, granted, now 10,020,487, issued on Jul. 10, 2018.
Claims priority of provisional application 62/114,508, filed on Feb. 10, 2015.
Claims priority of provisional application 62/114,007, filed on Feb. 9, 2015.
Claims priority of provisional application 62/084,454, filed on Nov. 25, 2014.
Prior Publication US 2020/0321596 A1, Oct. 8, 2020
Int. Cl. H01M 10/0525 (2010.01); H01M 4/13 (2010.01); H01M 4/36 (2006.01); H01M 50/574 (2021.01)
CPC H01M 10/0525 (2013.01) [H01M 50/574 (2021.01); H01M 4/13 (2013.01); H01M 4/366 (2013.01); H01M 2200/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for interrupting a recharging process for a high energy density rechargeable metal-ion battery upon exposure to a voltage exceeding a threshold voltage, the high energy density rechargeable metal-ion battery comprising an anode energy layer, a cathode energy layer, a separator between the anode energy layer and the cathode energy layer, and current collector coupled with each one of the anode energy layer and the cathode energy layer for transferring electrons to and from a corresponding energy layer, the method comprising:
in response to an overcharging of the high energy density rechargeable metal-ion battery in which the high energy density rechargeable metal-ion battery is exposed to the voltage exceeding the threshold voltage, interrupting the overcharging by evolving a gas by decomposition of a voltage sensitive decomposable component within a gas generating layer laminated to the current collector coupled with at least one of the anode energy layer and the cathode energy layer, the voltage sensitive decomposable component including carboxymethyl cellulose (CMC) doped with anions, the gas generating layer further including a carbon (C) additive and a binder that increases the binding of carboxymethyl cellulose (CMC) particles by partially filling an interstitial space within the gas generating layer and a conductive component dispersed within the binder, the interstitial space within the gas generating layer being partially unfilled such that the gas generating layer remains porous and permeable to ionic charge carriers, the gas generating layer serving as a current interrupter with the evolved gas delaminating the gas generating layer from the current collector upon exposure to the voltage exceeding the threshold voltage, and the overcharging of the high energy density rechargeable metal-ion battery being interrupted when the gas generating layer is delaminated from the current collector by an evolution of gas within the gas generating layer.