slide::DEG_ID Struct Reference

DEG_ID structure handles the identifications of which degradation model(s) to use. More...

#include <DEG_ID.hpp>

Collaboration diagram for slide::DEG_ID:

Classes
struct	DegArray
	DegArray class derived from SmallVector to handle degradation model arrays. More...

Public Types
using	data_t = uint_fast8_t
	Alias for uint_fast8_t as data_t. More...

Public Member Functions
auto	print ()

Public Attributes
DegArray	SEI_id {}
	Array with identifications to decide which SEI models to use. More...
data_t	SEI_porosity { 0 }
	Integer deciding whether we reduce the active volume fraction due to SEI growth. More...
DegArray	CS_id
	Array with identifications for which model to use for surface cracking. Max length 10. More...
data_t	CS_diffusion { 0 }
	Integer deciding whether we reduce the negative diffusion constant due to surface cracks. More...
DegArray	LAM_id
	Array with the integers deciding which models is to be used for loss of active material. Max length 10. More...
data_t	pl_id { 0 }
	Integer deciding which model is to be used for li-plating. More...

Static Public Attributes
static constexpr data_t	len = 10
	Length of the arrays with identifications of which models to use. More...

Detailed Description

DEG_ID structure handles the identifications of which degradation model(s) to use.

Member Typedef Documentation

data_t

using slide::DEG_ID::data_t = uint_fast8_t

Alias for uint_fast8_t as data_t.

Member Function Documentation

print()

auto slide::DEG_ID::print ( )

inline

• 0: no plating
• 1: Yang et al thermodynamic plating (Tafel kinetics)

Function to get a string representation of the struct with the degradation settings. This string is part of the names of the subfolders in which results are written.

Returns

std::string representation of the degradation identifiers. Identifiers of the same mechanism are separated by -. Identifiers of different mechanisms are separated by _. e.g., if we use SEI model 1, no SEI porosity effect, no surface cracks, LAM model 2 and LAM model 3 and lithium plating model 1: 2-0_0-0_2-3_1 2: SEI model 1 0: no SEI porosity 0: no surface cracks 0: don't decrease the diffusion due to surface cracks 2: LAM model 2 3: LAM model 3 1: lithium plating model 1

Here is the call graph for this function:

Here is the caller graph for this function:

Member Data Documentation

CS_diffusion

data_t slide::DEG_ID::CS_diffusion { 0 }

Integer deciding whether we reduce the negative diffusion constant due to surface cracks.

• 0: no surface cracking
• 1: Laresgoiti's stress + crack growth model, ref: Laresgoiti, Kablitz, Ecker, Sauer, Journal of Power Sources 300, 2015
• 2: Dai stress model + Laresgoiti crack growth, ref: Laresgoiti, Kablitz, Ecker, Sauer, Journal of Power Sources 300, 2015; Dai, Cai, White, Journal of Power sources 247, 2014
• 3: model based on Deshpande and Bernardi, ref: Deshpande & Bernardi, Journal of the Electrochemical Society 164 (2), 2017
• 4: model from Barai et al, ref: Barai, Smith, Chen, Kim, Mukherjee, Journal of the Electrochemical Society 162 (9), 2015
• 5: model from Ekstrom et al, ref: Ekstrom and Lindbergh, Journal of the Electrochemical Society 162 (6), 2015

CS_id

DegArray slide::DEG_ID::CS_id

Array with identifications for which model to use for surface cracking. Max length 10.

• 0: don't reduce it
• 1: use correlation from Ashwin et al. 2016, ref: Ashwin, Chung, Wang, Journal of Power Sources 328, 2016

LAM_id

DegArray slide::DEG_ID::LAM_id

Array with the integers deciding which models is to be used for loss of active material. Max length 10.

• 0: don't decrease diffusion
• 1: decrease according to Barai et al. 2015

len

constexpr data_t slide::DEG_ID::len = 10

staticconstexpr

Length of the arrays with identifications of which models to use.

pl_id

data_t slide::DEG_ID::pl_id { 0 }

Integer deciding which model is to be used for li-plating.

• 0: no LAM
• 1: Dai's stress model and Laresgoiti's correlation to get LAM
• 2: delacourt's correlation between abs(j) and porosity
• 3: Kindermann's model for cathode dissolution: tafel kinetics for increased porosity
• 4: Narayanrao's correlation which decreases the effective surface area proportionally to itself and j

SEI_id

DegArray slide::DEG_ID::SEI_id {}

Array with identifications to decide which SEI models to use.

SEI_porosity

data_t slide::DEG_ID::SEI_porosity { 0 }

Integer deciding whether we reduce the active volume fraction due to SEI growth.

• 0: no SEI growth
• 1: kinetic model only (Tafel kinetics), ref: Ning & Popov, Journal of the Electrochemical Society 151 (10), 2004
• 2: Pinson&Bazant model: linear diffusion + Tafel kinetics, ref: Pinson & Bazant, Journal of the Electrochemical society 160 (2), 2013
• 3: Christensen and Newman model, ref: Christensen & Newmann, Journal of the Electrochemical Society 152 (4), 2005

---

The documentation for this struct was generated from the following file:

• src/cells/Cell_SPM/param/DEG_ID.hpp